what is the function of cholesterol in the cell membrane?

Answers

Answer 1

Answer:

It reduces the permeability of the cell membrane


Related Questions

the age of fossils can sometimes be determined by radiometric dating, which is based on the constant rate of decay of radioactive isotopes. the time required for half of a radioactive isotope to decay is called the half-life of that isotope. for example, the isotope carbon-14 has a half-life of 5,730 years.

Answers

Answer:

17,190 years Radiometric dating is a technique for determining the age of fossils that is based on the fact that specific radioactive isotopes decay at a constant rate.

Explanation:

HELP ASAP PLS! just need 1 question:( i don’t understand what it’s asking !:(

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Answer:

As the prey population increases, there is more food for predators. So, after a slight lag, the predator population increases as well. As the number of predators increases, more prey are captured.

Explanation:

a can of pop has a mass of 0.30 kg. what is the weight of that can on earth

Answers

Answer:

the same but I would need to see the answer

most of the surface area of a plasma membrane consists of

Answers

Answer:

50% liquid and 50% protien by wieght

Damselfish will fight over newly available territory. This is a direct interaction between individuals and is an example of

Answers

Answer:

This is a direct interaction between individuals and is an example of... Territorial agression!

Explanation:

territorial behaviour, in zoology, the methods by which an animal, or group of animals, protects its territory from incursions by others of its species. Territorial boundaries may be marked by sounds such as bird song, or scents such as pheromones secreted by the skin glands of many mammals.

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If the birth rate and death rate are balanced in a population, how might a population increase in size?
a. By doubling
b. By emigration
c. By immigration
d. By an increase in density

Answers

A . By doubling because the population increases

How to treat Scalp acne?

Answers

Answer:

1. Treat acne on the head with benzoyl peroxide

2. Use salicylic acid to clear pores

3. Use AHA to treat acne on the head

4. Cleanse the scalp with sulfur

5. Use a retinoid to apply to acne spots

Explanation:

explain why you have so many responses to one stimulus

Answers

Answer:

When a stimulus is detected by a sensory receptor, it can elicit a reflex via stimulus transduction.

Patient describes a burning sensation on the posterior side of her body, lateral to the spine on the left side of the body inferior to the shoulder blade, inferior to the waist and superior to the knee. Where is this located on the image above?


A


B


C


D


E


F


G


H


I


J

Answers

Answer:

Explanation:

Injuries to the upper brachial plexus (C5, C6) affect muscles of the shoulder and elbow.

pls help

When new bonds form, energy is __________.


released


disconnected


gone


stored

Answers

Answer:

When new bonds form, energy is 'released'

Scientists often use fruit flies as a method to test hypotheses about human genes. Why are fruit flies advantageous in the study of human inheritance?
They can self-pollinate.
They lack nucleic acids.
They are very different from humans.
They reproduce quickly and take up little space.

Answers

Fruitflies are advantageous in the study of human genes and inheritance because they reproduce quickly and take up little space.

Advantages of using Fruitflies in the study of human genetics

Fruitflies are usually a subject for the study of human genes and inheritance for some reasons:

They have a simple genetic structureThey reproduce quicklyThey are quite small and hence take up very little space

The quick rate of reproduction makes fruitflies good subjects for studying mutation as well.

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They reproduce quickly and take up little space.

What is inheritance?

Fruit flies (Drosophila melanogaster) are advantageous in the study of human inheritance because they have several characteristics that make them well-suited for genetic research. One key advantage is their rapid reproductive cycle, with a generation time of about two weeks. This allows researchers to observe multiple generations in a short period, accelerating the study of inheritance patterns and genetic traits.

Additionally, fruit flies have a relatively small size, making it feasible to maintain large populations in a laboratory setting without requiring excessive space or resources. This allows for efficient experimental design and the ability to conduct large-scale genetic studies.

While fruit flies share some genetic similarities with humans, they are not identical to humans. However, their genetic and developmental processes have enough similarities to provide valuable insights into fundamental principles of inheritance and gene function, which can inform our understanding of human genetics.

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If gastr/o is the combining form for stomach, what is the medical term that means removal of half of the stomach

Answers

Answer:

Hemigastrectomy

the body system responsible for filtering wastes from the blood is the:

Answers

Answer:

urinary system

Explanation:

urinary system is responsible for filtering blood ,wastes and excessive water

Walking through a forest you
encounter fallen leaves, dead
organisms, a rotting stump. All of
these can be described as
A. autotrophs.
B. primary consumers.
C. trophic levels.
D. detritus.

Answers

Answer:

D

Explanation:

D is really decomposing waste of anytime so I think that’s the answer.

In a forest fallen leaves, dead organisms, a rotting stump. All of these can be described as detritus, hence option D is correct.

What are detritus in the ecosystem?

Detritus is a term used in ecology to describe organic stuff that comes from nearby terrestrial populations and falls onto the soil or into bodies of water, including leaves and other plant parts, animal remains, waste products, and other organic trash.

Detritivorous invertebrates, which are prominent elements of almost all ecosystems, eat detritus, which is a significant pool of carbon in the global carbon cycle.

Therefore, detritus food chains, in contrast to terrestrial food chains, begin with dead organic materials rather than producers or autotrophs, hence option D is correct.

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Circle the letter of the phrase that best completes the sentence.
The cell theory was
a. first identified in 1665
b. the end result of many scientific investigations.
c. described by Rudolf Virchow.
d. Both (a) and (b)

Answers

Answer: D

Explanation: the cell theory took many years to fully learn about and publish and many different scientists, biologists etc had to investigate in order to finalise the hypothesis. Also, it was first identified in 1665 by Robert hooke.

what is the role of vegetation in slope stability?

Answers

Vegetation helps stabilize steep forested slopes chiefly by reinforcing the soil through tree roots and by changing the soil water regime.

When is the kinetic energy of a pendulum the least?

Question 5 options:

On the path beginning the upwards swing.


Half the distance on the path traveling back down.


At the bottom of the swing.


At the top of the swing where it briefly stops before changing direction.

Answers

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The Correct choice is ~

" At the top of the swing where it briefly stops before changing direction "

before changing the direction, it stops for a while therefore the kinetics energy is almost zero at that particular moment ~

The answer is D - At the top of the swing where it briefly stops before changing direction. This is where potential energy is at its highest, meaning that kinetic energy is at its lowest. When the pendulum is beginning its upwards swing, it has a lot of kinetic energy. When it is half the distance traveling down it also has lots kinetic energy. When it is at the bottom it as well has a lot of kinetic energy. The only time where the kinetic energy is least is when the pendulum stops to change direction. Any form of stopping forced the object to loose its kinetic energy.

I hope this helps! :)

which molecule is needed for photosynthesis to occur?

Answers

Answer:

Carbon dioxide and water

Explanation:

plants prepare their food in presence of these molecules to produce sugar and oxygen which we required for survive

which division of the ans is associated with the fight-or-flight response?

Answers

It is in the Sympathetic Division

Use examples to explain how the geosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences. HELPPPP

Answers

Answer:The interaction between Geosphere, atmosphere and hydrosphere: Geosphere interact with various spheres of earth and help in various cycles of element and performing different processes. One of the examples of such interaction is the geosphere interacts with the atmosphere and hydrosphere when a volcano erupts.

A volcano is a structure or the part of the geosphere which releases lava and particulate matter into the atmosphere where it plays a role as a center particle or nuclei for the water droplets which is come down into river and land in the form of rainfall which is a part of the hydrosphe

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After you finish a big meal, the level of glucose in your bloodstream increases. What happens next in order for your body to process the glucose

Answers

Answer:

Digestion

Explanation:

The body digest the food down through the mouth to the anus

some enzymes also act on the food for easy digestion

Fucus shows ______life cycle pattern
a)Haplontic
b)Haplo-diplontic
c)Diplontic
d)Diplo-haplontic​

Answers

Fucus shows the diplontic life-cylic.

Both the male and female fuse in the ostiole of the bump.

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emission meaning in biology?

Answers

Answer:

expelling, discharge, emission - any of several bodily processes by which substances go out of the body; "the discharge of pus" nocturnal emission - ejaculation during sleep (usually during a dream)

Explanation:

This is the correct answer happy

Answer:

An emission is something that has been emitted—released or discharged. In general, emissions consist of things like gas, liquid, heat, sound, light, and radiation. ... This exhaust is just one form of carbon emissions—greenhouse gases from various sources that are known to contribute to global warming and climate change.

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What must happen to a chromosome for it to become chromatin?

Answers

Answer:

Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5). ... However, when eukaryotic cells are not dividing — a stage called interphase — the chromatin within their chromosomes is less tightly packed.

Explanation:

The chromosomes will decondense in telophase back into chromatin

Which of the following structures of the respiratory system helps to prevent choking?

Answers

Answer:

b. is correct Epiglottis

Explanation: post protected

If there is oxygen around, how will muscle cells make ATP?

Answers

Answer:

Muscle cells can continue to produce ATP when oxygen runs low using lactic acid fermentation. ... Many yeast use alcoholic fermentation to produce ethanol

A network of small arteries called the ___________ provides a blood supply to the tunica externa of very large vessels.

Answers

Answer:

vasa vasorum.

Explanation:

Find density if mass equal 400lb volume 20

Answers

Answer:

just use the formula d=m/v and plug in the numbers to solve the equation

Explanation:

Compare morphological and bio-
chemical evidence supporting
evolution.

Answers

The morphological evidence which is shown in fossils to modern animals supports evolution because some dinosaurs, for instance, had feathers and we can obviously see that trait today in birds. The biochemical evidence, which comes in the form of DNA comparison and amino acid similarities, shows that we related closely to monkeys and pigs, which suggests that we have close ancestors to these animals.

Morphological evidence: Physical structures and traits indicate evolutionary relationships.

Biochemical evidence: Genetic and molecular similarities indicate evolutionary relationships.

Evolution is supported by morphological evidence. Scientists can establish evolutionary links by analysing species' anatomy. Homologous structures, which have a common origin but diverse functions, reflect a shared lineage. Comparative examinations of bone structure, limb arrangement, or body plans can reveal evolutionary links.

Biochemical data emphasises genetic and molecular similarities between organisms. Scientists may compare DNA, protein, and other substances at the molecular level. Common ancestry and evolution explain these commonalities. Comparing genetic sequences can show how closely related species are and when they evolved from a common ancestor.

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When Emma first began dancing, her movements were ______ and awkward. Now, after several months of practice, Emma is able to produce fluid, smooth movements as a result of which of the following?

*all of the above is correct

Answers

Answer:

All of the above is the correct answer

Explanation:

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