Which mechanism requires energy?
A. Exocytosis
B. Osmosis
C. Diffusion of oxygen into a red blood cell.
D. Diffusion of ions through a potassium channel

Answers

Answer 1
The correct option is A.
Exocytosis is a type of vesicle transport which cells use to move substances out of their interior. It is an active process because it requires the energy of ATP to occur. The process of exocytosis move substances from the cell cytoplasm to the cell membrane.

Related Questions

Bill expends 2,500 kilocalories per day. what amount of kilocalories will be from basal metabolism

Answers

The awnswer is 1,500 to 1,750

You are dispatched to an industrial plant for a burn. you arrive and find a 60-year-old male who came in contact with a broken steam line and appears to have partial thickness burns on both hands and arms. he is lying on the ground and coworkers are gently spraying him with water from a nearby hose. what should you do? a call for air transport and continue to pour water on the burns until transport arrives. b before doing treatment, call the local burn center for instruction. c care for the burn and do a complete patient assessment, including cervical spine precautions. d because of his age, immediately put him in your ambulance and transport him to a burn center.

Answers

The answer to this question would be: Care for the burn and do a complete patient assessment, including cervical spine precautions.

A competent personnel should give an initial treatment for the burn while waiting for the help comes. The treatment should include cervical spine to prevent neck injury. Calling for an ambulance is should be done as the burn should be treated in hospital.

A 65-year-old patient reports night sweats and weight loss. the complete blood count report shows that she has lymphocytosis. the total white blood cell count is 23,000 microliters. on diagnosis, the bone marrow of the patient is infiltrated with small lymphocytes. what should the nurse suspect based on the information?

Answers

Nurse can suspect Tuberculosis as the patient has night sweats and lymphocytosis. Sputum also need to be cultured to make sure she does not have AIDS.

The three layers of specialized membranes surrounding the brain and spinal cord are the:

Answers

the answer is meninges

What are the ways life has improved and worsened in animal farm?

Answers

At the behest of the Napoleon pig, the life of the farm "improved" only for the pigs, and only on the level of productivity, and the fact that the pigs dressed like humans, gaining allies in the other farms; however, it all actually worsened because the original Seven Amendments were disappearing until the dictatorship of the pigs was complete: the animals under Napoleon's command work very long hours, achieving very high levels of productivity, eating very little food, and without being able to complain before the pigs of those deals. The worst part was the change of commandments, when a amendments says: that all animals were supposedly the same, but some were more equal than others, giving a reference to how discrimination can be disguised in human societies.


Ways Life Has Improved:

- The animals only have to produce for themselves.

- The animals can vote for change.

- The animals dfon't have to worry about being killed by the farmers.

- The aniumalse more productive and more happy.

- The animals are now hopeful for the future.

- The animal's food tastes a lot better.

- Their harvests are much more successful.

Ways Life Has Worsened

- Some animals are strict and angry.

- The animals do not keep as much of their food because the pigs eat it.

- The pigs take charge, and they are not very faithful.

- The seven commandments are disappearing.

- The life of the farm only improved for the pigs.

- The leaders on the farm are not very good.

- A lot of the animals always feel hungry and cold.

Describe the difference between exocrine glands and endocrine glands. list below an example of each and what hormone they release.

Answers

Endocrine gland is a gland whose secretions (called hormones) are collected by the blood and reach the tissues through the circulation. The hypophysis (pituitary) and the adrenals are examples of endocrine glands. Exocrine gland is a gland whose secretions are released externally through ducts (into the skin, intestinal lumen, mouth, etc.). The sebaceous glands and the salivary glands are examples of exocrine glands.

The ozone layer helps to sustain terrestrial life by __________. a. absorbing incoming UV radiation b. keeping levels of ozone in the troposphere low c. maintaining the Earth's temperature structure d. all of the above

Answers

D. All of the above

The right answer is d. all of the above.

The ozone layer is a layer of the Earth's stratosphere that lies between 20 and 50 km above sea level. It is characterized by a concentration of ozone (O3) proportionally greater than in the other layers of the atmosphere, of the order of ten parts per million (ppm).

It has the particularity of absorbing most of the ultraviolet radiation from the Sun that is harmful to life (such as UVB, which can alter the DNA).

The absorption of ultraviolet light by ozone creates a heat source that forms the stratosphere (a region where temperature increases with altitude). It plays a decisive role in the structure of the Earth's atmosphere temperature.

In the troposphere: tropospheric ozone is the one that results from human activities, particularly exhaust gases, which are subject to rigorous monitoring and warning of air quality during periods of intense heat (peak of ozone). This is the "bad" ozone, so it must remain at a low concentration.

The ____________ of a muscle is usually attached to a fixed location.

Answers

i believe it is origin

The atomic number is consider a unique atom and element identifier. Describe the associated subatomic particle, and how it can be used to identify the atom.

A) The number of electrons changes in a unique way as the charge on the atom changes.
B) The proton number remains constant through changing the atomic charge, energy, and isotopes.
C) As the atom absorbs photons the way the photons interact in the nucleus gives the atomic number.
D) All isotopes of the an element have the same number of neutrons allowing it to describe the unique atom.

Answers

it is b the number of protons

Volcanoes are usually formed as a result of _____.

a convergent boundary, where both plates are continental

a divergent boundary, where at least one of the plates is oceanic

a transform fault boundary, where both plates are oceanic

a convergent boundary, where at least one of the plates is oceanic

The answer is B. a divergent boundary, where at least one of the plates is oceanic

reposting this question because a guy named taskmasters answered this question and it wasnt even correct.

Answers

A convergent boundary, where at least one of the plates is oceanic

What is found in chloroplasts of green algae

Answers

Chloroplasts contain the green pigment chlorophyll that, along with enzymes, absorbs light energy and synthesizes sugar.
Cellular structure. Green algae have chloroplasts that contain chlorophyll a and b, giving them a bright green color, as well as the accessory pigments beta carotene and xanthophylls, in stacked thylakoids.

Autonomic tone, the balance between sympathetic and parasympathetic activity, is regulated by the

Answers

By the hypothalamus. The hypothalamus is crucial for living as it assumes a vital part. It controls certain metabolic procedures and different exercises of the Autonomic Nervous System. It blends and secretes neurohormones, regularly called hypothalamic-discharging hormones. 
The hormones from the hypothalamus administer physiologic capacities, for example, temperature control, thirst, hunger, rest, inclination, sex drive, and the arrival of different hormones inside the body. This territory of the cerebrum houses the pituitary organ and different organs in the body.

Jamal is asked to write a science essay about molecular forces. He first turns to his science textbook for information. Which is the BEST second source for Jamal’s research?

Answers

There are several sources in which one may turn to in order to establish a well-founded idea, information, and knowledge towards a given topic. From this item, books were collectively identified as the first source for Jamal's science essay.

The second one could be the information found in the internet. These information have lately became very accessible considering that one could directly upload/download information. The tricky part here is to identify which sources in the internet are reliable and which are not. 

Answer:

a scientific journalExplanation:

Dna is a polymer, which means that is made up of many repeating single units (monomers). what are the monomers called?

Answers

The monomers of nucleic acids, or DNA/RNA are nucleotides.

"phenylalanine is an amino acid needed by the body and must be ingested through the diet. therefore, this is an example of a(n) _____________ amino acid."

Answers

Answer:

this is an example os thyrosine amino acid

Explanation:

what are some of the health issues that clones may experience?

Answers

Clones cannot produce extra antibodies, cannot alter it's antibodies to protect it from another disease, and these result in the clone being a infestation of germs & bacterias that can cause harm to other people.

hope this helps

Which of the following would be the most important adaptation for a desert-dwelling animal to possess?
a.
heat dissipation structures
b.
heat conserving structures
c.
energy conserving behaviors
d.
water conserving behaviors

Answers

i think the answer is D 

The correct answer is option d. water conserving behavior.

The desert biome lacks water, so, the conservation of the water is very important for the organism for the survival in the deserts. The desert dwelling animals are adapted, in such a way, that the water is conserved in the body of the animals. They do not drink water for many days and utilize the water present in the body.  


True or false amino acids with hydrophobic side chains are often found in the region of an integral membrane protein that spans the membrane.

Answers

True

Further explanation

Amino acids are organic compounds that have a carboxyl (-COOH) and amine (usually -NH2) functional group. This carboxyl group gives acidic properties and the amine group gives basic properties. Protein-forming amino acids will bind to each other with peptide bonds, so that in one dipeptide molecule they contain one peptide bond.

In general, in an amino acid a C atom binds four groups, namely: a carboxyl group, an amine group, a hydrogen atom and a residual group (side chain, -R group). The side chains of the different amino acids (R groups) in amino acids determine the structure, size, electrical charge and water solubility.

There are 2 types of amino acids based on the body's ability to synthesize, namely essential amino acids and non-essential amino acids. Essential amino acids are amino acids that cannot be synthesized in the body, but are obtained from outside, for example through food (lysine, leucine, isoleucine, threonine, methionine, valine, phenylalanine, histidine, and arginine). Non-essential amino acids are amino acids that can be synthesized in the body through an overhaul of other compounds.

Classification of amino acids can be done based on side chains (-R groups) and their solubility in water. Based on the solubility in water divided into hydrophobic and hydrophilic amino acids.

AMINO ACID BIOLOGICAL FUNCTION

- Compiler of proteins, including enzymes.

- The basic framework of a number of important compounds in metabolism

- Binding of important metal ions needed in enzymatic reactions.

Learn  More

Amino acid : https://brainly.com/question/5883130

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Class: High School

Subject: biology

Keywords : Amino acid, enzymes, carboxyl

Amino acids with hydrophobic side chains are present in the region of an integral membrane protein that spans the membrane. This statement is true.

Further Explanation:

The Fluid Mosaic Model suggests that the plasma membrane is a unique structure with phospholipids, proteins and several carbohydrate molecules. Arrangement of phospholipids provides the membrane fluidity. The transmembrane domain is embedded in the hydrophobic layer, holding the proteins. Their hydrophobic nature is a must for their presence in the hydrophobic environment.Integral membrane proteins (IMPs) are composed of two types of amino acids:

Polar amino acids Non-polar amino acids

The polar part lies close to the hydrophilic part of the lipid bilayer, and the non-polar components lie adjacent to the hydrophobic part. Membrane spanning regions in the plasma membrane is called the transmembrane domain. These domains are made up of some hydrophobic molecules (amino acids) and play a major role in holding the protein in the membrane. Transmembrane domains are present in the hydrophobic layer and hence are similar in nature, providing them stability.  

Learn More:

Learn more about the treatment of eukaryotic cell with a drug https://brainly.com/question/10767798 Learn more about the proteins synthesis in a cell https://brainly.com/question/1420458 Learn more about the exchange of gases by blood cells https://brainly.com/question/1213217

Answer Details:

Grade: High School

Subjects: Biology

Chapter: Cell Membrane

Keywords:

Polar, non-polar, amino acid, hydrophobic, hydrophilic, membrane, stability, nature, molecule, fluid mosaic model, environment, nature.

Within a eukaryotic cell aerobic cellular respiration occurs within the

Answers

it occurs within the mitochondria.

Answer:

mitochondria

Explanation:

Squirrels and chipmunks compete for the same food source. What is most likely to happen to the degree of competition between these two species if their food became scarce? decrease increase stay the same disappear
help please

Answers

The answer is increase
the competition would increase due to a decrease in food. sorry I didn't read correctly the first time

How will the diversity of species differ between early and late succesion areas?

Answers

You could argue that in early succession areas species may have not been adapted or evolved. In Darwin's theory, life began in a shallow, warm pond. If that is the case, species would then venture deeper when their area they are in is suitable and having success

. Which factor does not take a population out of Hardy-Weinberg equilibrium? allele frequency natural selection mutation rate genetic drift

Answers

allele frequency is the answer
Answer;

Allele frequency

Explanation;According to Hardy Weinberg Principle, the gene or allele frequencies in a population will remain stable from generation to generation until acted on by an outside force.Allele frequencies in a population will not change from generation to generation, as far as factors of evolution such as natural selection, mutation, and migration are not taking place.Hardy-Weinberg equilibrium can be disturbed by the forces of evolution which includes, mutations, natural selection, gene flow, non-random mating and genetic drift.

In the b-galactosidase lab, why was o-nitrophenol-b-d-galactosidase (onpg) used?

Answers

When we use ONPG, we are able to evaluate b-galactosidase activity.

ONPG is used in the b-galactosidase lab to detect the presence of active enzymes.

ONPG is used in the b-galactosidase lab to detect active enzymes by yielding a yellow color upon cleavage. It is essential for enzyme activity detection in assays monitoring the cleavage of o-nitrophenyl-b-galactoside. When cleaved by b-galactosidase, ONPG yields a yellow color, indicating enzyme activity. This chemical is utilized in assays to monitor the cleavage of o-nitrophenyl-b-galactoside.

When observing a bird skin cell in g2 under a microscope, you count 160 total chromatids. how many chromosomes does a male chicken have in its sperm cells?

Answers

Final answer:

A bird skin cell in G2 with 160 chromatids leads to the conclusion that there are 80 chromosomes in diploid cells; hence, male chicken sperm cells would have 40 chromosomes, which is half the diploid number.

Explanation:

Observing a bird skin cell in G2 that has 160 total chromatids indicates that the diploid number of chromosomes in the bird species is 80, as each chromosome consists of two chromatids during the G2 phase of the cell cycle. Sperm cells are haploid, containing half the number of chromosomes found in somatic cells. Since a male chicken (rooster) is the organism in question, the number of chromosomes in its sperm cells would be half that of the diploid number, which in this case is 40. To provide another example, if a muscle cell of a typical organism has 32 chromosomes, a gamete from that organism would have 16 chromosomes, which is half the diploid number since gametes are produced through meiosis.

No matter what the cell type, prokaryotic or eukaryotic, plant or animal, the ____________ forms a protective barrier between the exterior environment and the interior of the cell.

Answers

No matter what the cell type, prokaryotic or eukaryotic, plant or animal, the cell membrane forms a protective barrier between the exterior environment and the interior of the cell.

Answer: The correct answer for the fill in the blank is Cell membrane.

Cell membrane ( also called plasma membrane) is the membrane around cytoplasm of the cell. It is present in the cells of all living organisms. It forms a protective barrier of the cell as it separates interior components from the external environment of the cell.

It is a selectively permeable membrane as it controls the transport of substances in and out of the cell. By doing this, it does not allow the harmful substances to enter the cell.

Alveoli are the terminal air sacs of the lungs, and are the sites of gas exchange between the lungs and blood. How does the surface area-to-volume ratio of the cells of alveolar walls relate to their function? please hurry.

Answers

Alveoli are specifically designed to quickly facilitate the exchange of gas from the lungs to the blood. They are very small, but with a very high surface area allowing a greater amount of gases to be exchanged in a comparatively short period of time.

Next-generation sequencing reveals six new mutations have occurred in the coding regions of genes in an individual diploid fly. if the coding regions of this fly comprise 100 million nucleotides per haploid genome, what is the mutation rate per nucleotide?

Answers

The mutation rate per nucleotide in the coding regions of the diploid fly's genome is 3 x 10^-8, derived by dividing the six new mutations by the total nucleotides in the diploid coding genome (200 million).

To calculate the mutation rate per nucleotide in the coding regions of the diploid fly's genome, we first consider the total number of coding bases per diploid genome, which is 2 x 100 million (as each haploid genome contains 100 million and the fly is diploid). If there are six new mutations, we divide the total number of new mutations by the total number of nucleotides in the coding regions of the diploid genome.

The calculation is as follows: 6 mutations / (2 x 100,000,000 nucleotides) = 3 x 10-8 mutations per nucleotide. This means the mutation rate is 3 x 10-8 for this individual fly.

What are two ways plant cells are like animal and human cells?

Answers

Answer:

Both animal and human cells include the following: reproduction, nucleus, organelles, plasma membranes.

Both plant cells and animal or human cells are multicellular and eukaryotic in nature. And due to this, the level of complexity is actually the same in both types of cells.

What is a Plant cell?

A plant cell may be defined as a eukaryotic cell that is present in green plants, as well as photosynthetic eukaryotes of the kingdom Plantae.

Both plant cells and animal or human cells contain membrane-bound cell organelles with a specific nucleus, mitochondria, etc.

They produce offspring through the process of reproduction.

Therefore, it is well described above.

To learn more about Plant cells, refer to the link:

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What is the complementary sequence corresponding to the dna fragment gataca?

Answers

I believe this is called CTAATGT. Hope this helps.

A patient is transferred to a nursing home without arrangements for follow-up being discussed with the family or a clinician responsible for follow-up care

Answers

A good example of clinician-patient relationships may be when a patient is transferred to a nursing home without arrangements for follow-up being discussed with the family or a clinician responsible for follow-up care, it shows it was a patient´s decision. 
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