Answer: British authorities based their colonial commercial policies on the theory of MERCANTILISM.
Explanation: Mercantilism is the system whereby a country amass wealth for itself at the expense of another country. The prosperity of a nation depends upon its supply of capital, and that the global volume of trade is unchangeable. This is done by increasing export significantly and reducing imports. It was used by the British to significantly amass wealth by importing commodities to Africa in exchange for gold and other precious metals.
You have discovered a new microorganism and would like to classify it as a eukaryote or a prokaryote. To investigate this question you prepare a slide with a simple stain and view it with a light microscope with a 40X objective lens and 10X ocular lens. You also prepare a control slide using Saccharomyces cerevisiae (a unicellular eukaryote). You can see the cells on your control slide, but you don't see cells when you look at your unknown microorganism. What can you conclude from this experiment?
Answer:
the unknown microorganism is a PROKARYOTE.
Explanation:
if it were a eukaryote then similar type of cells would be seen under light microscope as those seen in case of unicellular eukaryote i.e Saccharomyces cerevisiae . but as the unknown microorganism does not have those cells then we can easily classify it to be a PROKARYOTE.
The inability to visualize the new microorganism under a light microscope compared to the visible Saccharomyces cerevisiae suggests it may be smaller than the resolution limit of the microscope, inadequately stained, or present in low numbers. Additional methods are needed to determine whether it is a eukaryote or prokaryote.
Explanation:If you prepared a slide with a simple stain and viewed it under a light microscope using a 40X objective lens and a 10X ocular lens and did not see cells from the new microorganism compared to the visible Saccharomyces cerevisiae cells in your control slide, you can conclude several possibilities:
The microorganism may be smaller than the resolution limit of the microscope.The staining technique used might not have been suitable for visualizing the microorganisms.The microorganism might have not been present in the sample in sufficient numbers to be detected.Remember that Saccharomyces cerevisiae is a unicellular eukaryote, which is larger than prokaryotes such as Escherichia coli. However, since eukaryotic cells and prokaryotic cells can be differentiated by size and by the presence of specific structures (e.g., a nucleus in eukaryotes), not seeing the microorganism does not immediately determine its classification. More rigorous methods may be required, like using higher resolution microscopy or different staining techniques that can reveal small prokaryotic cells.
3. Primary immunodeficiencies affecting T cells tend to be more severe than those affecting B cells because: A. T cells control the innate immune response. B. T cells regulate antigen presentation. C. T cells regulate the adaptive immune response. D. T cells can trigger apoptosis. E. None of the above.
Answer:
The correct answer is option C.
Explanation:
The adaptive immune is characterized by immunological memory, specificity, and self nonself recognition. These cells are involved in lymphocytes that fight against the specific antigen.
T cells tend to be more severely affected than the B cells by the primary immunodeficiencies however both are the major components of the adaptive immune system.
Thus, the correct answer is option C.
Which of the following is most likely to be true of a person diagnosed with schizophrenia?
a. The person feels constantly nauseous.
b. The person's experiences are triggered by external stimuli.
c. The person has impairments in sexual functioning.
d. The person is likely to exhibit catatonic behavior.
Final answer:
The most likely characteristic of a person with schizophrenia from the given options is catatonic behavior, which is a recognized symptom of the disorder, manifesting in immobility or frenzied activity.So,option d. The person is likely to exhibit catatonic behavior is correct.
Explanation:
Among the options given, the one that is most likely to be true of a person diagnosed with schizophrenia is (d) the person is likely to exhibit catatonic behavior. Schizophrenia is associated with a range of symptoms including positive symptoms like hallucinations, delusions, derailment, disorganized behavior, inappropriate affect, and catatonia. Negative symptoms can also occur, such as social withdrawal, poor problem-solving abilities, and a distorted sense of time.
Catatonia can manifest in schizophrenia as a motor disturbance where the person does not move and is unresponsive to others. This condition ranges from complete stillness and lack of response to the individual's environment to seemingly random and frenzied activity. Catatonic behavior is a known and significant symptom that can occur in those with schizophrenia.
One difference between human cheek cells and onion cells is: 1. the presence of cytoplasm 2. the absence of a nucleus in the plant cells 3. the absence of a cell wall in human cells 4.none of the above
Answer:
3. the absence of a cell wall in human cells
Explanation:
Animal cells do not have cell walls. Cell membranes separate the cytoplasm of the animal cells from the surroundings and maintain their interior. Plant cells have cellulosic cell walls. A cell wall surrounds the cell membrane of a plant cell. Cell walls serve to provide structural support and protect plant cells from pathogens. Cell walls also help keep excess water out of cells so they do not burst. Therefore, human cheek cells would not have cell walls while the onion cells would have cell walls made up of cellulose.
Evidence with individual characteristics can lead to a determination of common origin (single source). Which type of evidence CANNOT yield such results?
A. fingerprints
B. single-layer paints
C. DNA
D. wear patterns on tires
Answer:
Answer is B. Single-layer paints
Explanation:
All the options mentioned are used by forensic experts to detect or have evidence about a person that committed a crime that is being investigated.
Single-layer paints cannot yield individual characteristic evidence because they can be mass-produced and are not unique to a single source, meaning they cannot be definitively linked to a single origin.
Explanation:The type of evidence that cannot yield such results is B. Single-layer paints. Fingerprints, DNA, and wear patterns on tires are all examples of evidence with individual characteristics that can lead to a determination of common origin. However, single-layer paints cannot yield such results because they can be mass-produced and are therefore not unique to a single source. For example, a specific color of paint may be identical across different sources, making it impossible to link it to one single origin.
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A rubella vaccination is ordered for a client. Which statement made by the client is cause for concern?
" I have been trying to conceive a baby for a few months."
"I have plans to have a baby by next year."
"I have no history of rubella in childhood."
"I have plans to get married by the next year."
Answer:" I have been trying to conceive a baby for a few months."
Explanation:
If she is pregnant, the virus can be passed to the foetus which can cause deafness and some other negative effects to the foetus.
After the effector cell has been stimulated by acetylcholine (ACh), what enzyme stops this stimulation and allows the effector membrane to repolarize?
A) Decarboxylase
B) Norepinephrine
C) Acetylcholinesterase
D) Catecholamine
Answer:
The correct answer is C) Acetylcholinesterase.
Explanation:
Neurotransmitter release occurs in the neuron axon. The sending neuron has vesicles filled with neurotransmitters in their interior. When an action potential reaches the nervous terminal or the varicosities, it causes the neurotransmitter release by exocytose forward to the synaptic space. The molecule binds to its receptor in the postsynaptic neuron. This receptor is a protein structure that triggers an answer. As long as the acetylcholine is in the synaptic space, it keeps linking to its receptor and causing a postsynaptic answer. To stop this process, the neurotransmitter must be taken out from the synaptic space. There are two mechanisms by which the neurotransmitter can be eliminated:
Enzymatic degradation/deactivation: In the synaptic space, there is a specific enzyme called Acetylcholinesterase that can inactivate the neurotransmitter by breaking or degrading it. In this case, the new molecule won’t be able to bind to the neurotransmitter receptor. Reuptake: There are receptors located in the presynaptic membrane that can capture de molecule to store it back in new vesicles, for posterior use.Final answer:
Acetylcholinesterase (AChE) is the enzyme that stops the stimulation of effector cells by acetylcholine (ACh), allowing the effector membrane to repolarize and preventing uncontrolled muscle contractions. Hence, the correct answer is C) Acetylcholinesterase.
Explanation:
After the effector cell has been stimulated by acetylcholine (ACh), the enzyme that stops this stimulation and allows the effector membrane to repolarize is acetylcholinesterase (AChE). Acetylcholinesterase is present in the synaptic cleft and rapidly degrades ACh into choline and acetate molecules, thereby terminating the action of ACh. This degradation is essential because it prevents continuous stimulation of muscles, which would lead to uncontrolled muscle contractions. The choline can be reuptake into the presynaptic cell to synthesize new acetylcholine. Hence, the correct answer is C) Acetylcholinesterase.
Which physical change always happens to both the male and female body during puberty?
A. muscle development
B. increase in perspiration
C. increase in body fat
D. formation of eggs
Answer:
The answer is letter B, increase in perspiration.
Explanation:
Puberty- this refers to the process in which children experience physical change in their body as a sign of maturity. Both boys and girls experience such a change in their body due to hormones that are being released. Boys' puberty occurs between ages 12 and 16, while girls' puberty occurs between ages 10 and 14. Girls and boys have different signs of physical change when it comes to puberty, but they also have something in common such as having an increase perspiration or sweating due to having active sweat glands. The sweat glands become active at this stage.
Letter A, muscle development: this occurs in boys. This is due to the male's testosterone hormone.
Letter C, increase in body fat: this occurs in girls. This is due to the female's estrogen hormone.
Letter D, formation of eggs: this occurs in girls.
What are the three sections of the large intestine and what roles does each play in digestion or absorption?
The colon, rectum, and last part of canal are all parts of the large intestine. As food approaches the end of its journey through your digestive system, it continues in one continuous, lengthy tube from the small intestine.
What is alimentary canal?The digestive system's path from the mouth to the rectum is known as the gastrointestinal tract. Food digestion takes place in the alimentary canal.
The muscular tube known as the intestine (bowel) runs from the stomach to the anus. Food digestion is its primary function.
The colon is divided into three sections: the transverse colon, which absorbs fluids and salts, the ascending colon, which retains waste, and the descending colon, where bacteria aid in the digestion of any leftover food. The rectum, which houses the faces, is the last segment of the large intestine.
Thus, the three sections of large intestine are colon, rectum, and opening of rectum.
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What best describes the difference between paracentric and pericentric inversion?
A. the number of genes inverted
B.the number of centromeres inverted
C.the placement of centromeres in the inversions
D.if the inversion is on autosomal of sex chromosomes
Answer:
The answer is B.
Explanation:
Paracentric and Pericentric Inversions both are terms used to describe the action of inversing a part of the chromosome. But the main difference between the paracentric and pericentric inversions is that pericentric inversion, unlike the paracentric inversion, does include the centromere in the inversion process. So the answer is B, which is zero for paracentric inversion.
I hope this answer helps.
The main difference between paracentric and pericentric inversions is the option c. involvement of the centromere. Pericentric inversions can change the relative lengths of the chromosome arms.
The involvement of the centromere is the primary distinction between these two types of inversions. Paracentric inversions do not include the centromere because they take place outside of it.
This indicates that the positions in relation to the centromere remain unchanged and that the inversion is restricted to just one arm of the chromosome.
Conversely, pericentric reversals incorporate the centromere inside the upset fragment. Because of this, the relative lengths of the chromosome arms above and below the centromere can change in a pericentric inversion, making these inversions easy to spot.
One reason why small patches of protected land could be disadvantageous is _____. it would be difficult for forest rangers to keep track of the different patches it would require too many roads to connect the patches it would make it difficult for animals to move around and seek resources in other areas park visitors would be less likely to visit all areas of a park
Answer:
The answer is C.
Explanation:
I think the main and most important disadvantage of small patches of land that are seperate from each other would be the option given in C. It would basically force the animals into small areas where there is finite resources and that would lead to territory problems among them where groups start fighting. This action would also remove the possibility of the different species interacting with each other and thus disrupting the food chain which is crucial for a stable habitat.
I hope this answer helps.
Answer:
c
Explanation:
Based on what we know about meadow voles (i.e., they do not form pair-bonds and have multiple mating partners), which peptide hormone receptor would you expect to show decreased levels in promiscuous human males in comparison to monogamous human males? (Assume here that voles and men have similar receptor distributions.)
Answer:
Vasopressin.
Explanation:
Vasopressin hormone also known as anti-diuretic (ADH) hormone that regulates the tonocity of the body and maintains the fluid composition. This hormone is released from the posterior pituitary.
The vasopressin is a peptide hormone that plays an important role in the human beings. The promiscous males have multiple sexual partner and this decrease the amount of vasopressin in these males as compared with the monogamous males as vasopressin also regulates the sexual function in humans.
Thus, the answer is vasopressin.
When a trait is expressed as a continuum or range of measurements, that trait is most likely to be: completely dominant incompletely dominant caused by multiple alleles caused by multiple genes
Answer:
completely dominant
Explanation:
a trait is said to be completely dominant when it manifests its character continuously from generation to generation respective of other genes.
Flower color in snapdragons is an example of incompletedominance. When a red-flowered plant is crossed with a white-flowered plant, the F1 generation has pink flowers. If a pink-flowered plant is crossed with another pink-flowered plant, theprogeny plants will be _____.
A. 100% pink
B. 100% red
C. 25% red, 50% pink, and 25% white
D. 50% pink and 50% red
E. 25% white and 75% red
Which sequence correctly increases complexity in the level of biological organization?
a. atoms, molecules, cells, tissues, organs
b. molecules, atoms, cells, organs, tissues
c. atoms, molecules, cells, organs, tissues
d. atoms, molecules, organs, tissues, cells
e. atoms, molecules, tissues, organs, cells
The correct sequence of increasing order of complexity in the level of the biological organizations is option a. atoms, molecules, cells, tissues, organs.
At the biological organization, there are many different levels of organization within organisms, in this case, the level is based on smaller and basic building blocks and becomes more complex in increasing order.
Atoms are the smallest unit of the organization and least complex level of the biological organization;Molecules are more complex than atoms but least complex to cells as various types of molecules form cells.the cell is the basic building unit of every living organism.A group of the same type of cells performs the same function together to form tissuesWhen tissues aggregate or are organized to form a structure it is called organs which is the most complex among given options.Thus, the correct answer is option a. atoms, molecules, cells, tissues, organs.
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Final answer:
In biological organization, complexity increases from atoms to molecules, then to cells, tissues, and finally organs; hence, the correct sequence is 'a. atoms, molecules, cells, tissues, organs'.
Explanation:
The hierarchy of biological organization defines the ascending levels of complexity in living organisms, starting from the simplest building blocks and moving up to the entire biosphere. To correctly increase complexity in the level of biological organization, one would start with atoms, which combine to form molecules. These molecules are the building blocks for cells, which are the basic units of life. Cells organize into tissues, which then work together to form organs, each with its specialized function. Therefore, the correct sequence for increasing complexity in biological organization is 'a. atoms, molecules, cells, tissues, organs'.
Which of the following types of neurons are replaced throughout adult life?
A) retinal ganglion cellsB) auditory outer and inner hair cellsC) retinal bipolar cellsD) olfactory receptor cells
Answer:
D) olfactory receptor cells
Explanation:
The olfactory receptor neurons are located in the nasal cavity, they have dendrites that go all the way to the mucus. In vertebrates the olfactory system has the parcularity of performing neurogenesis and the replacement of degenerating receptor neurons through all the adult life.
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A classic example of selection in natural populations involves the peppered moth Biston betularia in England. Industrial gases killed the lichens and mosses on buildings, trees, etc., and soot deposited on the landscape. Dark-colored moths gained a selective advantage. In this case, one would say that there was selection against the light-colored moths. Which morph, light or dark, would have the highest fitness? (Enter light or dark in the box below.)
Answer:
Dark colored moth
Explanation:
Moths either dark or light live on the bark of the trees. During industrial revolution in England, excessive pollution caused the darkening of bark of trees. Due to this environmental change, some of the light colored moths evolved and turned into dark colored moths. Both bark and moth being dark in color, made the moths untraceable by their predators. While the light colored moths on dark trees were easily recognizable by their predators.
Hence, the dark colored moths possess high fitness.
Evolution has been tested in various ways. Genetic, fossil, anatomical, physiological and behavioral studies all confirm that evolution is the mechanism of the origin of species. Thus, in science evolution is considered a scientific ____.
Answer:
Theory.
Explanation:
Evolution may be defined as the changes in the species characteristics with respect to time. Different evidences like fossil evidence, genetic evidence and the behavioral study is used for the evolutionary study.
Scientific theory may be defined as the explanationary aspect of the world's phenomena. The scientific evidence, experiment and results are important to make a scientific theory. The phenomena of the evolution can be explained by the scientific theory.
Thus, the answer is theory.
Concerning comb shape in chickens, which of the following is true? Multiple Choice
The R gene is dominant to the P gene.
The R and P must both be present to produce a walnut comb.
R is recessive to r and produces a rose comb.
P is recessive to p and produces a single comb.
Answer:
The R and P must both be present to produce a walnut comb.
Explanation:
Comb shape in chickens is an example of intergenic interaction. Two genes R and P come together to determine the type of comb.
If R is present in dominant form and p in recessive form ( R_pp ) : Rose combIf P is present in dominant form and r in recessive form ( rrP_ ) : Pea combIf both R and P are present in dominant form ( R_P_ ) : Walnut combIf both r and p are present in recessive form ( rrpp ) : Single combHence, it is clear that both R and P must be present to produce a walnut comb.
Given the following genotypes for two parents, AABBCc × AabbCc, assume that all traits exhibit simple dominance and independent assortment. What proportion of the progeny of this cross will be expected to phenotypically resemble the first parent with the genotype AABBCc?
Answer:
When all the conditions cit e in the question is applicable, which are the independent assortment and simple dominance, a cross between these two parents will lead to an expectation of 75% of the progeny to resemble the parent with a genotype AABBCc.
Explanation:
Independent assortment is a phenomenon in which the alleles particular for a trait in an organism can separate into two independently to each other during the process of meiosis, while simple dominance is a term that help to express the occurrence of both dominant and recessive allele for a particular trait, where the presence of at least one of the dominant allele will lead to the expression of the trait. Having known the meaning of these conditions, we then apply it to solving the question.
Parent 1's genotype=AABBCc
Assorted alleles to be produced=ABC and ABc.
Parent 2's genotype=AabbCc
Assorted alleles to be produced=AbC, Abc, abC, abc.
Crossing these alleles using the punnets square will lead to: AABbCC, AABbCc, AaBbCC, AaBbCc, AABbCc, AABbcc, AaBbCc, AaBbcc. Which have a genotypic ratio of=1AABbCC: 2AABbCc: 1AABbcc: 1AaBbCC: 2AaBbCc: 1AaBbcc. What is expected from the question is phenotypic ratio which is 6ABC, and 2ABc. Therefore, the percentage of those that will resemble the first parent will be 6/8 X 100 = 75%.
Approximately 37.5% of the offspring from the given parental cross (AABBCc × AabbCc) would be expected to phenotypically resemble the parent with the genotype AABBCc. This is due to the principles of dominance and independent assortment in genetics.
Explanation:First, it's important to note that the parents' genotypes are AABBCc and AabbCc. Each parent can only pass on one allele for each trait to their offspring, which is selected randomly. For the offspring to phenotypically resemble the first parent (AABBCc), they need to inherit dominant alleles for the first two traits (A, B) and either of the alleles for the third trait (C or c, as it has the condition of simple dominance).
Let's calculate the likelihood for each trait separately. For the first trait, only the dominant allele A exists in both of the parents, so the offspring will definitely inherit this allele. The probability here is 1 or 100%. For the second trait, only the first parent carries the dominant allele B, so the chance of the offspring inheriting this allele is 1/2 or 50%. For the third trait, both the parents contain the dominant allele C, so it is likely for the offspring to inherit dominant allele. The probability here is 75%.
To get the combined probability, we multiply all of these probabilities together: 1 × 0.5 × 0.75 = 0.375 or 37.5%. Therefore, approximately 37.5% of the progeny of this cross will be expected to phenotypically resemble the first parent with the genotype AABBCc.
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in flowering plants plasmodesmata are narrow channels through cell walls that connect the cytoplasm of adjacent
Answer:
In flowering plants plasmodesmata are narrow channels through cell walls that connect the cytoplasm of adjacent CELLS AND ALLOW SMALL MOLECULES TO MOVE FREELY BETWEEN THE TWO CELLS.
Explanation:
Plasmodesmata are tiny channels which functions as intercellular cytoplasmic links and pathways, to ease communication and transport of materials between the cytoplasm of adjacent cells.
It permits intercellular passage of water, certain nutrients, and other molecules to pass from one plant cell's cytoplasm to an adjacent plant cell's cytoplasm.
A protein containing more than one polypeptide chain exhibits the ________ level of protein structure.
a) Primary
b) Secondaryc) Tertiaryd) Quaternary
e) Infinite
d) 3.14 factual recall42
Answer:
the correct option is D.
Explanation:
in case of quaternary level of protein structure , protein has more than one polypeptide chains and in this level , the polypeptide chains are aggregated and held together by hydrophobic interactions, hydrogen and ionic bonds. this specific arrangement is called the quaternary structure.for example :-
Haemoglobin the oxygen carrying protein of red blood cells, exhibits such a structure.
A protein with more than one polypeptide chain exhibits the quaternary level of protein structure, which results when multiple polypeptide chains come together to form a functional protein.
Explanation:A protein that contains more than one polypeptide chain exhibits the quaternary level of protein structure. Proteins are composed of amino acids linked together in a specific sequence, which is termed as the primary structure. The secondary structure comes from hydrogen bonding that forms alpha-helices or beta-pleated sheets. In the tertiary structure, the protein folds into a complex 3D shape due to interactions among various side chains. Finally, the quaternary structure occurs when two or more polypeptide chains associate to form a functional protein.
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Phoebe is taking samples to determine the populations of aquatic life in different areas of a lake. She takes samples from different areas of the lake and finds the marine life listed in the chart below. What can Phoebe infer from the data in the table?
Location 1
Location 2
Location 3
Location 4
Insects
13
20
18
15
Crawfish
8
15
20
22
Fish
3
11
13
12
Other
5
2
8
4
A. Location 1 has a larger food source than location 4.
B. Location 3 gets more sunlight than location 2.
C. Crawfish prefer the food source at location 4.
D. Fish prefer the food source at location 1.
Answer:
I believe it is C. Crawfish prefer the food source at location 4.
Explanation:
According to the data given in the table, Phoebe can infer that Crawfish prefer the food source at location 4. Thus, the correct option for this question is C.
What is Population?A population may be defined as a group of individuals belonging to the same species living in the same area at a given time. The size, abundance, birth rate, death rate, density, dispersal, etc. are some of the characteristics of the population. These characteristics are also known as demographic factors.
The number of crawfish is found to be more at location 4 as compared to other locations. This illustrates that the Crawfish prefer the food source at location 4 which leads to enhancing the relative fitness of the crawfish at that location due to the availability of their favorite resources.
Therefore, Phoebe can infer that Crawfish prefer the food source at location 4. Thus, the correct option for this question is C.
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On a global scale, energy _______ ecosystems whereas chemical elements __________ ecosystems.
a. is biologically magnified in... are recycled in
b. is dissipated in.... flow through
c. flows through... are recycled in
d. is continuously supplied through... are continuously removed through
e. is recycled in.... flow through
Answer:
c. flows through... are recycled in
Explanation:
In an ecosystem, energy gotten from the sun by plants flows through the ecosystem from one trophic level to another, as the energy in is transformed from one form to another via nutrition.
On the other hand, chemical elements in the form of nutrients are recycled and made available to primary producers when decomposers in the ecosystem to break down organic matter. During decomposition, energy is released. Several nutrient recycling process have feedback mechanisms that ensures chemical elements are recycled back into the ecosystem as they are being used up by organisms.
Where simple sugars are broken down into carbon dioxide, water vapor and atp ogranelle?
Answer: Mitochondria
Explanation: Mitochondria is an organelle responsible for cellular respiration which is the break down of Simple sugars into carbon dioxide,water,ATP( adenosine trisphosphate).
It has a double membrane,known as the power House of the cells found in the cytoplasm of most Eukaryotic organisms.The number of Mitochondria found in an organism varies according to the Oxygen requirements of that organism. In human liver contains about 2000 Mitochondria,the Red blood cells do not contain Mitochondria.
Cellular respiration is the set of metabolic reactions that occur in cells to produce energy in the form of ATP. During cellular respiration, high energy intermediates are created that can then be oxidized to make ATP. During what stage are these intermediates produced?
The question is incomplete. The complete question is:
Question: Cellular respiration is the set of metabolic reactions that occur in cells to produce energy in the form of ATP. During cellular respiration, high energy intermediates are created that can then be oxidized to make ATP. During what stage are these intermediates produced?
a. Glycolysis
b. Oxidative phosphorylation
c. The citric acid cycle
d. Oxidative phosphorylation and citric acid cycle
e. Citric acid cycle and glycolysis
Answer:
e. Citric acid cycle and glycolysis
Explanation:
During the citric acid cycle and glycolysis, NAD+ and FAD+ serve as electron acceptors and are reduced into NADH and FADH2 respectively. The breakdown of one molecule of glucose into pyruvate by glycolysis forms a total of 2 NADH. Oxidation of pyruvate into acetyl CoA in the mitochondrial matrix is catalyzed by enzyme pyruvate dehydrogenase and forms one NADH per pyruvate. Complete oxidation of acetyl CoA into CO2 and H2O by citric acid cycle forms a total of 6 NADH and 2 FADH2.
Therefore, the citric acid cycle and glycolysis stores the energy released by the breakdown of glucose into NADH and FADH2. Oxidation of these reducing powers by the electron transport chain generates the electrochemical gradient which in turn drives ATP synthesis.
For every kilogram of their body weight, babies need about three times as much proteins as adults. What could be the reason for this? a) Their body must get used to eating proteins. b) Their bodies are growing rapidly and building new protein tissues. c) Proteins help their bodies to get adjusted to food other than mother's milk. d) Their bodies waste more proteins because they cannot digest protein properly.
Answer:
B) Their bodies are growing rapidly and building new protein tissues.
They are essential for the formation of all organ systems, including bones and muscles, as well as the maintenance and repair of important tissues. Thus, option B is correct.
What is role of protein in the body?You need protein in your diet so that your body can repair damaged cells and generate new ones. Children, teenagers, and expectant women all require protein for healthy growth and development.
The body's proteins also serve as hormones, immunological components, enzymes, and cellular messengers.
The form and internal organization of cells, the production of products and the removal of waste, as well as normal maintenance, are all carried out by proteins.
Additionally, proteins take in external signals and activate cellular responses.
Therefore, Their bodies are growing rapidly and building new protein tissues.
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During the germinal period, the first task of the zygote's outer cells is _____.a. germinationb. implantationc. differentiationd. duplication
Answer:
Implantation. (Ans. B)
Explanation:
Implantation is defined as the stage of pregnancy where the embryo stick to the wall of uterus. This parental development stage, the conceptus is known as the blastocyst. With the help of this adhesion embryo receives nutrients, and oxygen from the mother, and are able to grow.
In the case of humans, implantation of the fertilized ovum chances occurs around 9 days after the process of ovulation, and this can range between 6-12 days.
There are 35 chipping sparrows and 40 cowbirds in a forest. Female cowbirds are parasites to other bird species like the chipping sparrows. If the chipping sparrow population size suddenly decreased to 15, how would it affect the size of the cowbird population? A. The cowbird population would increase. B. The cowbird population would decrease. C. The cowbird population would go extinct. D. The cowbird population would stay the same.
Answer:
The correct option is B) The cowbird population would decrease.
Explanation:
A decrease in the population of chipping sparrows will lead to limited food resources for female cowbirds as they feed on the chipping sparrows. Due to this, the cowbirds will compete with each other for food as food resource will become limited. The competition might be intraspecific or interspecific if other species also fed on the chipping sparrows. As a result, the population of the chipping cowbirds will also decrease.
"Bottom-up" (or "data-driven") mechanisms are Group of answer choices
A. mechanisms for which activity is primarily triggered and shaped by the incoming stimulus information.
B. the scientific process in which all claims must be rooted in well-established biological evidence.
C. the process by which researchers seek to develop new theories by paying close attention to the available data.
D. mechanisms for which activity is influenced by thoughts provided by the individual.
Bottom-up mechanisms in psychology refer to processes that are primarily driven by incoming stimulus information, starting from lower-level sensory data and working up to higher-level cognitive functions.
Explanation:The 'bottom-up' or 'data-driven' mechanisms are A. mechanisms for which activity is primarily triggered and shaped by the incoming stimulus information.
This means that information processing starts with the stimuli that reaches our senses and then proceeds to the higher-level cognitive processes. In other words, we begin our perception by witnessing an event and the sensation driving our processing, rather than being directed by prior knowledge or expectation.
On numerous occasions, our brains begin to process data at very fundamental levels and then move on to more complex analytical thinking, which can be signified as bottom-up processing.
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Bottom-up (or data-driven) mechanisms are mechanisms for which activity is primarily triggered and shaped by the incoming stimulus information. These mechanisms operate by processing sensory inputs in a sequential and incremental manner to build a higher-level representation or understanding.
Explanation:Bottom-up (or data-driven) mechanisms are mechanisms for which activity is primarily triggered and shaped by the incoming stimulus information. These mechanisms operate by processing sensory inputs in a sequential and incremental manner to build a higher-level representation or understanding. They are commonly observed in biological systems, such as neuronal processing in the brain or sensory perception. For example, when you touch a hot object, your sensory receptors in the skin send signals to your brain, triggering a cascade of physiological responses to remove your hand from the source of heat.
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