In the citric acid cycle (also known as Kreb’s Cycle), the enzyme that catalyzes oxidative decarboxylation reactions is α-Ketoglutarate dehydrogenase. The oxidative decarboxylation reaction is the irreversible stage of the citric acid cycle; it generates NADH (equivalent of 2.5 ATP), and regenerates the 4C chain (CoA is excluded).
Sometimes a bee performs a maneuver, known as the “wiggle dance” in front of another bee. what is the purpose of the maneuver?
The nurse is reviewing the medication administration record (mar) of a client at 39 weeks' gestation and notes that she is ordered an opioid for pain relief. which is an assessment priority after administering?
The priority after administering is to assess fetal heart rate. After administering an opioid to a laboring mother, the main concern is to evaluate the effect on the fetus. Opioid administration can cross the placental obstruction with signs as well as measuring heart rate and variability. Subsequently after birth, there may be a reduction in attentiveness. Maternal factors of a reduced blood pressure, constipation and dry month are of a lesser importance.
depending on the organism the number of in a cell may change
The answers are:
nucleus
genes
chromosomes
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Explanation:
Got them all Correct
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Elevated white blood cell count and neutrophils during pregnancy
A typical action potential of a myocardial contractile cell lasts ________ millisecond(s).
A model that helps explain the results of Mendel’s crosses is called a ______.
What is proteins that move needed substances or waste materials through the plasma membrane?
Final answer:
Transport proteins are responsible for moving substances through the plasma membrane. They can function as channels or carriers to facilitate the passage of molecules.
Explanation:
The proteins that move needed substances or waste materials through the plasma membrane are transport proteins.
These transport proteins can function as either channels or carriers. Channel proteins form a hydrophilic channel through the phospholipid bilayer, allowing polar compounds to pass through. Carrier proteins bind with the substance and aid its diffusion through the membrane.
Examples of transport proteins include aquaporins, which allow water to pass through the membrane, and pumps that work against electrochemical gradients for active transport.
What relays sensory information to the cerebral cortex?
The right ventricle transports oxygenated blood to the lungs. Please select the best answer from the choices provided. T F
The right answer is false.
The cardiac ventricles are the one or both lower chambers of the heart.
The right ventricle receives venous (deoxygenated) blood from the right atrium and propels it to the lungs through the pulmonary artery.
It is rather the left ventricle which receives oxygenated blood by the left atrium and propels it into the body through the aorta.
The right ventricle transports oxygenated blood to the lungs. Please select the best answer from the choices provided. The statement is false.
The right ventricle of the heart is responsible for pumping deoxygenated blood to the lungs for oxygenation, not oxygenated blood. The right ventricle receives deoxygenated blood from the right atrium and pumps it through the pulmonary artery to the lungs, where oxygen is exchanged and carbon dioxide is removed.
The oxygenated blood then returns to the heart through the pulmonary veins and enters the left atrium to be pumped by the left ventricle to the rest of the body.
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The most common way infections are spread in the healthcare setting is by the
Which field of study would be most useful to a person who wants to work with sea turtles? A. Zoology B. Geology C. Botany D. Meteorology
Answer:
Zoology
Explanation:
Zoology is one of the aspects of biology that is concerned with the study of animals with respect to their structure, function, morphology, anatomy, behaviour, etc.
Sea turtle is an animal. Hence, if someone wants to study or work on sea turtles, he must go for zoology.
Biology students used raw eggs in an experiment on tonicity and osmosis. The students put their eggs into vinegar to remove the shells. The vinegar was used to remove the shell form the raw egg. What other effect(s) did the vinegar have on the egg?
The egg swells up. The movement of particles from its higher concentration to the lower concentration through a semi-permeable membrane is known as osmosis. As the vinegar outside the egg has higher concentration of water molecules than the concentration of water molecules inside the egg hence to maintain the equillibrium, water molecules move inside the egg from the vinegar, which results into the swollen egg.
The area in which certain types of plants or animals can be found living in close proximity to each other is called a
Select one:
a. community
b. habitat
c. kingdom
d. niche
The area in which certain types of plants or animals can be found living in close proximity to each other is called a habitat.
Explanation:The correct answer is b. habitat.
A habitat is the specific area or environment where particular plants or animals naturally live and interact with each other and their surroundings. It provides all the necessary resources, such as food, water, and shelter, for the organisms to survive and reproduce.
For example, a coral reef is a habitat for various marine species, including fish, corals, and sea turtles. The plants and animals within a habitat form a community, which refers to all the different species living together in a particular area.
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"the movement of substances out of the glomerulus and into bowman's capsule is referred to as _____.
The of substances movement out of the glomerulus and into Bowman ’s capsule is referred to as
Filtration and Aldosterone enclosed to the cells of the glomerulus, permitting them to "loosen up" and allow wastes to move into the filtrate.
What ion is formed when an atom of mercury (Hg) loses two electrons?
Hg–1
Hg–2
Hg+1
Hg+2
The ion formed when mercury looses two electrons is Hg^2+
An ion is formed when a chemical specie looses or gains electrons. The ion is positive if electrons are lost and the ion is negative when electrons are gained.
Mercury is a metal hence it is electropositive. It looses electrons easily. As such, when mercury looses two electrons, it forms the ion Hg^2+.
Hence, when mercury looses two electrons, it forms Hg^2+
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Which nitrogen base replaces thymine (t) in rna?
The hasting's center outlined four broad goals of medicine:
Dead and decaying organic matter, including waste products, is called:
The complex of dna and protein that makes up a eukaryotic chromosome is properly called _____. (concept 12.1)
Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers and the other has white, terminal flowers; all F1 individuals have red, axial flowers. The genes for flower color and location assort independently. If 1,000 F2 offspring resulting from the cross, approximately how many of them would you expect to have red, terminal flowers?
When crossing two true-breeding pea plants with different flower colors and positions, approximately 63 out of 1,000 F2 offspring are expected to have red, terminal flowers due to independent assortment and dominance of red color and axial position.
When crossing two true-breeding pea plants, one with red, axial flowers and the other with white, terminal flowers, the F1 generation shows all plants with red, axial flowers. Red flower color is dominant over white, and axial position is dominant over terminal. Since the question states that genes for flower color and location assort independently, we can use Mendel's law of independent assortment to predict the F2 generation.
Let's designate the alleles for flower color as R for red and r for white, and the alleles for flower position as A for axial and a for terminal. The parental generation genotypes are RR (red) and rr (white) for color; AA (axial) and aa (terminal) for position.
The F1 generation will all be RrAa, displaying the dominant phenotypes (red, axial). In the F2 generation, we consider the possible gametes of the F1 plants: RA, Ra, rA, and ra. Using a Punnett square, we calculate the possible offspring. We are interested in the offspring with red, terminal flowers. The genotype for red, terminal flowers is Rraa, which will occur in 1/4 (for the red color, Rr) times 1/4 (for the terminal position, aa) of the offspring, resulting in 1/16 of the F2 plants.
Expecting 1/16 of the 1,000 F2 offspring to have red, terminal flowers, we can therefore predict approximately 62.5 or about 63 plants will display this phenotype.
Why is glycolysis an appropriate term for this step of cellular respiration?
Which mechanism(s) are responsible for introducing new alleles into a population's gene pool? A) gene flow B) emigration C) niche shift D) natural selection
A) gene flow because blank blank blank
Answer:
A) gene flow
Explanation:
Through gene flow, populations exchange alleles, and can therefore acquire new alleles that they did not have before. To ensure gene flow (of alleles) between two different populations, there must be reproduction among their individuals. That is, individuals from population 1 must reproduce with individuals from Population 2.
During a routine prenatal care visit, a pregnant woman in her last trimester of pregnancy reports that she has occasional shortness of breath. the nurse instructs her that:
Almost all the physiological alterations that occur during the third trimester of pregnancy contribute to shortness of breath. The growth of the uterus exerts pressure on the diaphragm, reducing breath volume and resulting in dyspnea. However, this condition typically improves when the fetus descends lower in the uterus, a process known as lightening.
Explanation:During the last trimester of pregnancy, physiological changes occur that can lead to occasional shortness of breath. One key change is related to the respiratory volume, which increases by approximately 50 percent because of the increased oxygen demands of the fetus and heightened maternal metabolic rate. Meanwhile, the growing uterus exerts an upward pressure on the diaphragm, which can decrease the volume of each breath and potentially trigger shortness of breath or dyspnea.
This dyspnea is usually temporary. During the final weeks of pregnancy, a process known as lightening occurs, whereby the pelvis becomes more elastic and the fetus descends lower in the uterus. This change often lessens the pressure on the diaphragm, thereby alleviating the dyspnea.
However, if the shortness of breath worsens or is accompanied by other concerning symptoms, it's important for the mother to seek further medical advice as it could be a sign of a more serious condition.
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The nerves that are located outside the spinal cord and brain are part of the
A portion of the dna molecule containing a sequence of base pairs that encodes a particular protein is known as a:
The ________ is a region of dense bone that surrounds and protects the membranous labyrinth.
At about day 14 of the menstrual cycle, a mature ovum is released near a fallopian tube. this process is known as
At about day 14 of the menstrual cycle, a mature ovum is released in a fallopian tube. This process is known as:
During day 14, ovulation occurs but it can also happen earlier or later than that. Ovulation happens when an egg is released from your ovaries and sometimes two eggs are released and not just one.
In what way(s) are ciliates unique among the protists
Chemically speaking, enzymes are composed of chains of _________________, and they are considered to be a type of __________________. A) fatty acids, lipid B) amino acids, protein C) nucleotides, nucleic acid D) monosaccharides, carbohydrate
Answer:
B) amino acids, protein
Explanation:
Most enzymes are chains of amino acids, this means that eventually this will form protein, enzymes are the molecules in charge of catalyzing biochemichal process in living beings, enzymes are in charge of setting in motion, slowing down or speeding up biochemical processes, they are basically in charge of finding the correct timing for the biochemical processes that happen in all the biological processes.
This layer contains areolar and adipose connective tissue, has a tendency to store fat, and is an area where drugs are commonly injected because of its high vascularity.
The hypodermis, or subcutaneous layer, contains adipose and areolar connective tissue, which stores fat, provides insulation, and serves as a protective cushion. Due to its high vascularity, it is commonly used for drug injections. The adipose tissue consists largely of adipocytes specialized for lipid storage.
The layer being referred to in the question is the hypodermis, also known as the subcutaneous layer. This layer is situated below the dermis and is comprised primarily of adipose connective tissue and areolar connective tissue. The adipocytes, which are fat cells, within the adipose tissue are specialized for lipid storage and play several key roles including energy storage, insulation to maintain body temperature, and providing cushioning to protect underlying structures.
The hypodermis is notably vascularized, which means it contains a rich supply of blood vessels, making it an ideal site for injections as drugs can be absorbed efficiently into the bloodstream. Areolar connective tissue found in this layer is a type of loose connective tissue that binds the skin to underlying muscles and supports other internal organs.
The stored fat within the hypodermis serves as an energy reserve and can be broken down and utilized as needed by the body. The adipose tissue located here is significant in weight control and is an area of concern for individuals managing their body weight.