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What is the JOB of the cell membrane?

Answers

Answer 1

To protect and organize cells.


Related Questions

True or false ?

The chemical reactions of cellular respiration are anabolic reactions.

O True

O False




PLEASE HURRY ITS DUE TOMORROW AT 10:00pm

Answers

I think it’s true, good luck!.

Mr. Carter draws a box with a particle diagram of a liquid on the whiteboard. Next, he draws another box with a particle diagram of a solid, but he leaves this box blank for one of his students to fill in.



What should Mr. Carter's student draw in the blank box?

Answers

Mr. Carter's student must draw particles very close together.

We can arrive at this answer as follows:

Mr. Carter is showing how the particles fit into a solid substance and a liquid substance.In a liquid substance, the particles are separated from each other, which allows the characteristic fluidity of liquids.In a solid substance, the particles are very close to each other, not allowing space between them.

In this case, we can say that Mr. Carter's student, when drawing the particles of solid substance, must draw them very close to each other, not allowing any space between them, preventing them from moving.

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the type of voltage-gated channel that possesses an inactivation gate that temporarily closes after the channel is active is the

Answers

The sodium channel possesses an inactivation gate that temporarily closes after the channel is active.

In neurons, sodium channels are responsible for the ascending phase of the action potential (depolarization).

Characteristically, this channel has two transmembrane voltage-dependent gates.

When the membrane is depolarized to the threshold, both gates are activated, but since one of them opens rapidly while the other closes slowly, the channel remains open for less than 2-5 milliseconds.

Therefore, we can conclude that the sodium channel is responsible for the depolarization and possesses two gates which one temporarily closes after the channel is active.

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Which of the following is/are producers?
SELECT ALL THAT APPLY
a certain fungi
b certain bacteria
call plants
d algae

Answers

Answer:

Ans- B)certain bacteria

C) all plants

D) Algae

Producers:the organism which make their own food.Also known as autotrophs.

12. A primate's ability to hold objects in its hands/feet is an evolutionary development that allowed it to
A. walk upright B. use simple tools C. gather food D.create elaborate social systems

Answers

Answer:

Its B I took the test

Explanation:

Item 5
What molecule that is created during photosynthesis provides energy for cellular processes?

ATP

chlorophyll

glucose

oxygen

Answers

Answer:

Glucose is the answer because it is one of the end products of photosynthesis which is used to generate ATP for the cell through the first process of cellular respiration glycolysis

Answer:

glucose

Explanation:

took test

Obesity is a digestive system issue for which of the following age groups?

Answers

Answer:

d. All of the above

Explanation: is correct

D) all of the above.

Colchicine is a toxin that binds to tubulin proteins and prevents microtubules from elongating. What effect might this have on dividing cells

Answers

The effect Colchicine might have on dividing cells is that the duplicated chromosomes might not be able to segregate into daughter nuclei.

Colchicine is an alkaloid that attaches to tubulin and prevents it from polymerization to microtubules. As we know that Microtubules are a component of the cytoskeleton of a cell that aids in molecular mobility inside the cell.

During cell division, chromatin condenses into chromosomes, which are then connected to microtubules. The chromosomes are separated into daughter cells by microtubules.

When these cells are treated with colchicine, tubulin polymerization to microtubules may not occur, and the chromosomes containing daughter nucleic might not be separated.

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Which of the following is an example of a bond being traded on the secondary market?

Answers

Answer: D

Explanation: An investor sells a bond to another investor

An example of the secondary market is the investor sells a bond to another investor.

What is the secondary market?

The secondary market is the market where the investor purchases and sells the securities.

An example could be the stock market.

Here the securities are traded when the company has been sold to provide on the primary market.

hence, An example of the secondary market is the investor sells a bond to another investor.

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the endosymbiont theory proposes a model for the evolution of mitochondria. according to the model, an ancestral eukaryote engulfed a small, free-living prokaryotic organism. the engulfed prokaryote then formed an endosymbiotic relationship with the eukaryotic host. which of the following observations best supports the model?

Answers

Answer:

Mitochondria and some prokaryotes share similar metabolic reactions that produce ATP.

Correct. The observation that mitochondria and some prokaryotes share similar metabolic reactions that produce ATP supports the model that mitochondria are endosymbionts that originated from a free-living prokaryote.

Explanation:

BRAINLIEST?

give 3 examples or where potential energy was convertedto kilinetic energy

Answers

Answer:

give 3 examples or where potential energy was convertedto kilinetic energy.

sympathetic nerve fibers are not associated with situations involving __________.

Answers

Answer:

Digestion

Explanation:

The parasympathetic division handles things that stimulate digestion.

Sympathetic nerve fibers are not associated with situations involving digestion.

What is an index fossil?
A. A fossil that contains rocks and minerals
B. A fossil that formed 300 million years ago
C. A fossil that has vestigial structures
D. A fossil found in rocks from one time period

Answers

Answer:

a fossil that is useful for dating and correlating the strata in which it is found.

Explanation:

Maybe D I hope it helps you

Match each part of the neuron with the correct label.

Answers

Answer:

yes. those are labeled correctly

Explanation: post protected

this is correct it is labeled correctly!

Describe the structural make-up of a gene?

Answers

Answer:

Structure of gene:

The chemical structure of a gene comprises nucleotides. A part of DNA- genes are made up of A, T, G and C nucleotides

Explanation:

Where is the enzyme amylase found?

Answers

Answer:

b. In saliva and the pancreas

Explanation: is the correct answer

Four friends were walking on a nature trail in their local park. They began to question whether or not the trees need to breathe, or need food like humans do. Here are their thoughts
:Katie:I think that plants need to eat but don’t need to breathe.
Hugo:I think that plants need to eat and need to breathe.
Danielle:I think that plants need to breathe but don’t need to eat.
Liam:I don’t think plants need to eat or breathe.
Circle the person you most agree with. Explain why you agree with that person

Answers

Answer: I agree with Hugo that plants do need to breathe and eat because Plants do require oxygen to respire, the process in return gives out carbon dioxide and eat thorugh the process of phoyosynthesis

What are the four functions of lipids

Answers

Answer:

Store Energy – When we take in more energy than we need, the body stores it as adipose tissue (fatty tissue, which we call fat).  

Regulate and Signal – Lipids regulate the temperature of your body, keeping it steady, not too hot, and not too cold.  

Insulate and Protect – Our bodies are padded with fat, protecting us from everyday friction.

Aid Digestion and Increase Bioavailability – When food breaks down in the gut, fat is released and combines with fat-soluble nutrients

Explanation:

Chaz is visiting California. He notices it is very dry, with soil mostly made of sand and rock. What type of biome is he in?DesertTemperate grasslandsTropical rain forestTundra

Answers

Answer:

Desert

Explanation:

Deserts are very dry and rocky which is what Chaz is explaining

A type of biome that is very dry, with soil made mostly of sand and rock found in California is known as the desert.

What are biomes?

Biomes has been considered as the higher level of organization than ecosystems. Biomes are land areas formed by the influence of climate, rainfall, and latitude. There are various kinds of biomes namely desert biome, prairie biome, savanna biome, tropical forest biome, deciduous forest biome, tundra biome, and mangrove forest biome.

The Mojave Desert is a desert that comprises parts of southern California and small parts of Northern California, southwestern Utah, southern Nevada, and northwestern Arizona, in the United States.

A desert is a biome which receives very little annual precipitation. As a result of this it exhibit very hot and dry climatic conditions. The soil generally losses it's fertility which may either become compact or remain in loose form due to erosion like sand. The plants exhibit fleshy leaves so as to prevent the loss of water through transpiration.

Therefore, A type of biome that is very dry, with soil made mostly of sand and rock found in California is known as the desert.

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Help with the question in the red box please

Answers

Answer:

It Must be D

Explanation:

Not sure how to explain

Order the steps of the urine formation process

Answers

Answer:

glomerular filtration, reabsorption, and secretion.

Explanation:

Red blood cells do not have a nucleus but the ____ has a lot of haemoglobin to carry more oxygen.

Answers

Answer:

Red blood cell has lot of haemoglobin to carry more oxygen

What math is the slope intercept form from.

Answers

It's from optional maths

why do wildlife populations tend to decline as the human population grows?

Answers

Answer:

Human populations compete for the same space, water, and other resources that are required for wildlife survival. Contact with humans protects domesticated animal populations from disease but decreases nearby wildlife populations.

Explanation:

The production of orchids by cutting is an example of.

Answers

The production of orchids by cutting is an example of vegetative propagation.

There are two methods of growing orchid trees i.e. through seed as well as from vegetative part. Most of the farmers grow orchids plants through vegetative propagation because it takes less time to reach maturity while on the other hand, growing orchids through seed takes more time.

So that's why the farmer prefers vegetative propagation as compared to seed so we can conclude that the production of orchids by cutting is an example of vegetative propagation.

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What is the role of density changes in a convection cycle

Answers

Answer:

Explantion

Convection is heat transfer due to a density differential within a fluid. As water's temperature increases in the presence of a heat source, it will become less dense and rise. As it moves up and away from the heat source, it cools and becomes more dense and sinks. ... Air from above the ocean is colder and more dens

Convection is the transfer of heat caused by a density difference within a fluid. Water becomes less dense and rises as its temperature rises in the presence of a heat source.

What is convection?

Convection is a method of moving heat that is also known as a heat transfer mechanism. When a fluid, such as air or water, is in motion, heat is transferred. Temperature differences across the fluid drive convection.

Differential heating causes convection currents. Warmer (less dense) material rises, while cooler (more dense) material sinks.

This movement is responsible for the formation of circulation patterns known as convection currents in the Earth's atmosphere, water, and mantle.

Convection is the heat transfer resulting from variations in density within a fluid. In the presence of a heat source, water becomes less dense and rises in density.

Thus, this is the role of density changes in a convection cycle.

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a eukaryotic cell that receives a go-ahead signal at the g1 checkpoint of the cell cycle will

Answers

Answer: If mammalian cells receive a go-ahead signal at the G1 checkpoint, they will D. complete the cycle and divide. G1 checkpoint occurs between the G1 and S phase of the cell cycle. When the cell is grown sufficiently and produces all components of DNA replication it enters in the S phase.

If mammalian cells receive a go-ahead signal at the G1 checkpoint, they will complete the cell cycle and divide.

What is cell cycle?

The cell cycle, or cell-division cycle, is the series of events that take place in a cell that cause it to divide into two daughter cells.

Moreover, a cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.

The cell cycle consists of a series of steps during which the chromosomes and other cell material double to make two copies. The cell then divides into two daughter cells, each receiving one copy of the doubled material.

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Can climate changes be linked only to the greenhouse effect? Why or why not?

Answers

An increase in the atmospheric concentrations of greenhouse gases produces a positive climate forcing, or warming effect. ... The warming effect associated with carbon dioxide alone increased by 36 percent

When we inhale what do we bring in?

Answers

Answer:

oxygen

Explanation:

We breathe in oxygen into our lungs and let out carbon dioxide.

You inhale oxygen and exhale carbon dioxide

Look at the diagram Which structure holds the original code from the DNA gene?​

Answers

Answer:

The answer is 4/D)4. Don't expect me to get scientific in this, I'm using brainly and coursehero after all. Sorry for being a year late, hopefully it took you a year to finish the test. . .

Explanation:

K12/Keystone

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