summarize how small, nonpolar molecules enter and leave the cell (and why).

Answers

Answer 1

Answer:

Small, nonpolar molecules (ex: oxygen and carbon dioxide) can pass through the lipid bilayer and do so by squeezing through the phospholipid bilayers. They don't need proteins for transport and can diffuse across quickly.

Explanation:

The channel proteins act like doors through the cell membrane.

They allow large polar molecules to move in and out of the cell.

The process is called passive diffusion or passive transport, because it does not need energy.

Sometimes the protein changes shape to help the polar molecules move through the channel.

It often uses a gated pore mechanism, in which the channel is never completely open.


Related Questions

The pH of water is
because it contains an equal amount of HF and OH- ions.
7
9
6

Answers

Answer:

7

Explanation:

water is neutral 7 is neutral ph

Yes, the correct answer is 7

Have a nice day / night :)

Please help asap thank you so much

Answers

The chosen answer is correct (B)

How could membrane fluidity be maintained in human cell membranes as the temperature decreases

Answers

Answer:

"At low temperatures it increases membrane fluidity by preventing fatty acid hydrocarbon chains from coming together and crystallizing."

Explanation:

As energy flows through an ecosystem, energy ____ as it moves to the next trophic level

A. decreases by 10%
B. increases by 90%
C. decreases by 90%
D. increases by 10%

Answers

C. decreases by 90%
the answer is “increases by 90%”

.A substance from outside needs to reach genes in the cells of your body. In which order will it encounter different parts of the cell? cell wall -- cell membrane--- nuclear membrane ---cytoplasm—gene cell membrane--- cytoplasm –gene cell membrane--- cell wall ----cytoplasm---- nuclear membrane---- gene cell membrane -----cytoplasm----- nuclear membrane----- gene

Answers

Answer:

cell membrane -----cytoplasm----- nuclear membrane----- gene

Explanation:

A cell is made up of three part this include the cell membrane, the cytoplasm and the nucleus.

cell membrane encloses the cells and it prevent external material from getting inside the cell while the nucleus is formed by a nuclear membrane around a fluid nucleoplasm. chromatin in the nucleus contain deoxyribonucleic acid (DNA) which is the genetic material of the cell.

The cytoplasm is fluid found in the cell. It is gel like in nature and a medium for chemical reaction.

cell membrane -----cytoplasm----- nuclear membrane----- gene

The arrangement will be a cell membrane for protection followed by the cytoplasm thatbis located in between the cell membrane and the nucleus then the nuclear member found around the nucleus. The nucleus contains the DNA which is the genetic information of an individual gene.

1. Determine whether the following statement is an observation or an
inference "The container is filled to the 350 mL mark with water".
1. Observation
2. Inference
3. Prediction

Answers

Observation because it says that the container is filled to the 350ml mark of water.
The answer is one !!!!!!!

Select three functions of the cell membrane: *
:
A. It sends and receives messages to maintain homeostasis
B. It prevents anything harmful from entering the cell.
C. It creates separation between the cell and the outside.
D. It changes lipids into usable proteins for the cell.
E. It controls the movement of molecules in and out of the cell.
F. It holds all of the genetic material for the cell.

Answers

Answer:

B, C, E

Explanation:

Answer:

B,C,E

Explanation:

I NEED HELP ASAP! (Picture is attacted) You Dha Real One IF YOU DO!

Answers

I think your answer is C

Peptide bonds in proteins can be broken down by the enzyme peptidase. Adrian orders a hamburger and French fries for lunch. He adds cheese and mayonnaise to his hamburger, and then sits down to eat lunch with his friends. Which structure would MOST likely result from the action of peptidase in Adrian’s small intestine?

Answers

Answer:

Hello. I think the answer is small peptides and amino acids.

Explanation:

Proteins are polymers that their monomer is amino acid.

First digestion of proteins accurs in stomach.

Stomach enzymes digest proteins but not to amio acid. They digest it to small peptides.

Then the other proteins and small peptides enter the small intestine.

In small intestine peptidaze digests proteins and transform them to small peptide.

The small peptides that came from stomach are digested to amino acids and most of them is absorbed by the epithelial cells of intestine wall.

I hope you understand.

Amino acid is the structure would MOST likely result from the action of peptidase in Adrian’s small intestine.

Proteins are made up of monomers of amino acids. Adrian diet is rich in proteins that is present in hamburger and French fries along with the cheese and mayonnaise.The food passes through various organs in the body of the digestive system where digestion of food occurs.The proteins are first digested in stomach then in the intestine. In the intestine the proteins are broken down into peptides and further into amino acids by the enzyme peptidase.

Hence, amino acid is the correct answer.

Learn more about proteins:

https://brainly.com/question/19596068

1) Which of the following statements is TRUE with regard to the human hand?
a) There are 5 carpals, 8 metacarpals and 14 phalanges.
b) There are 8 carpals, 6 metacarpals and 14 phalanges
c) There are 8 carpals, 5 metacarpals and 15 phalanges
d) There are 8 carpals, 5 metacarpals and 14 phalanges
e) There are 5 carpals, 8 metacarpals and 15 phalanges

Answers

Answer is option d 8,5,14 yw jit good luck

Carpal bones are bones of the human hand and consists of eight wrist bones which connects hand to the forearm. The Wrist is known as carpus and is the sole cluster of bones.  

These bones don't belong to fingers and are labeled in alphabetical order from A to H. The metacarpals are thin and long bones that are connected by carpal bones in the wrist and the phalanges.  They all are made of a base, shaft, and head. The first metacarpal is the thickest and shortest of them all. The phalanges are tubular ones in the thumb and the fingers found in the foot.They consist of proximal, distal, and middle phalanx. hence fourteen in total.

Hence the option D is correct that is 8 carpals, 5 metacarpals, and 14 phalanges.

Learn more about which statement is true regarding the human hand.

brainly.in/question/35832145.

Which of the following is made of cells?

A. Blood
B. Muscle tissue
C. Nerves
D. Oxygen

Answers

The answer is A. Blood

true or false: 1. T F Cities are usually colder than their surrounding regions. 2. T F Climate has no effect on the formation of soil. 2.T F Mangroves are a keystone species. 3. T F The brackish water of estuaries does not support a diversity of marine life. 4. T F Large browsing animals are abundant in chaparral. (O​

Answers

Answer:true

It is true

Explanation:

Answer:

Yup it's True!

Explanation:

Which statement describes an advantage of models?
O Models can be used to communicate and test designs ideas.
Models always show the exact size of a system.
Models have the ability to develop into complex systems.
Models are useful for developing scientific methods.

Answers

I believe it should be the first option

What do you think is the most practical method of processing fruits and vegetables? Why?

Answers

Answer:

eating them

Explanation:

or throw them away

variables for how does adding fertilizer affect the growth of a plant?

Answers

Answer:

Environmental factors that affect plant growth include light, temperature, water, humidity, and nutrition. It is important to understand how these factors affect plant growth and development.

Explanation:

If PCBs escaped into the river in large amounts and entered the lower levels
of the food chain, what would be the likely outcome?

Answers

Answer:

Over time, PCBs would collect in top predators such as salmon, making them unsafe for human consumption.

Explanation:

PCBs last a long time in the environment before breaking down and may find their way into the food chain. Low levels of PCBs can be found in fish, shellfish, meat, poultry, milk, dairy products, and other foods. Since PCBs have not been made since 1977, the levels in the environment have been declining over the past several years. Predators at or near the top of the food chain (e.g. birds, fish) have the highest levels of PCBs in their bodies.

Overuse injuries are a common issue many athletes and even everyday people face. I want you to research what an overuse injury is. What is an overuse injury? What causes overuse injuries? What are some symptoms that might be warning us that an overuse injury might occur? Are there any long-term consequences if we ignore these symptoms? How can we prevent it? What are some common overuse injuries? These are some suggestions about what you can research. I want 3 paragraphs due by the end of the day tomorrow.

Define regulating services in your own words

define providing services in your own words

Answers

Answer: did this

Explanation:


Q 9. How do the heart and the lungs work together?

Answers

they work together to ensure the body has oxygen in its blood to make sure it functions properly
The heart and lungs work together to make sure the body has the oxygen-rich blood it needs to function properly. The Pulmonary Loop The right side of the heart picks up the oxygen-poor blood from the body and moves it to the lungs for cleaning and re-oxygenating.

PLEASE HELP MEE GUYSSS

Answers

I think it’s A for this one

Answer:

Im pretty sure that It is A

Explanation:

Brainliest?

Summarize translocation in your own words

Answers

Answer:

This word mainly means to move from place to another, but in this case, it's talking about genes when a part of a chromosome is moving to another part of the chromosome.

Write a hypothesis for each of the variables in your experiment (which factor increases cricket chirping).

Answers

many insects live in many different types of temperature

the insects like chirps and cricket are increasing due to the temperature and global warming

Enzymes are composed of what organic molecule? A. Sugars B. DNA C. Fatty acids D. Proteins

Answers

Answer: D. Because enzymes are protiens but they are produced of amino acids

Explanation:

Enzymes are composed of proteins, that assist our bodies' chemical reactions to move forward more quickly. For several processes, including digestion and liver function, enzymes are crucial.

What is the function of enzymes?

Health issues might result from having too much or too little of a specific enzyme. Healthcare professionals can also use the enzymes in our blood to look for injuries and illnesses.

Among countless other functions, they are crucial for breathing, food digestion, and the health of the muscles and nerves. Numerous enzymes can be found inside each cell of the human body. Each cell's internal chemical operations can be aided by enzymes.

Digestion enzymes are produced by your pancreas, small intestine, and stomach. The "powerhouse" of digestion's enzymes is actually the pancreas. The most significant digestive enzymes are produced by it.

Therefore,  in the human body, enzymes aid in accelerating chemical reactions, hence option D is correct.

Learn more about enzymes, here:

https://brainly.com/question/6038221

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When two molecules are put in the same container they do not attract each other. Why does this happen?

a.they are both polar
b. they both contain oxygen
c. one is polar one is nonpolar
d. they contain different elements

Answers

D just took the test , yesterday

Answer:

The correct answer is C.

C. One is polar one is nonpolar 

Explanation:

4. This is the step in the scientific method in which you explain your results and whether your
hypothesis was correct.
a research
c. conclusion
b. results
d. hypothesis

Answers

Answer:

C conclusion

Explanation:

After doing experiment and making a hypothesis and getting results you make a conclusion about your results

Answer:

c. conclusion

Explanation:

The conclusion is the part where you make a conclusion about the results you got. Was your hypothesis correct or incorrect? Does the experiment have to be done again maybe in a different way? etc.

Therefore, it is answer c.

PLEASE RESPOND FAST!!!!!!!!!
_____ pressure is what gives plants that are not woody their rigid structures.
Hypertonic
Hypotonic
Turgor
Turgid
Isotonic

Answers

Answer:

I'd say C.)

Explanation:

Turgor pressure, also called turgidity when occurring in trees and most plants are the pressure of cell contents exerted against the plant cell wall including tree leaf and stem cells. ... This force consequently gives a succulent plant rigidity and helps non-woody plants to keep erect.

The answer is it’s answer c

If oxygen was removed from the equation, what chemical would build up?

Answers

Answer:

co2

Explanation:

Hope this helps, have a nice day!

Help PLEASE!!!!!!
Just as energy flows through an ecosystem, matter also moves from organism to organism and from organisms to the environment. Using either a kelp forest or a hydrothermal vent ecosystem as an example, explain how carbon can move through the organisms

Answers

Answer:

The seaweed in the Kelp forest goes through photosynthesis, takes in carbon, other organisms eat the seaweed and take in the carbon.

Do cells respond to every signal? Explain.

Answers

Answer:

No, they only respond to a signal if they have a receptor that can receive the signal.

Explanation:

The __ releases enzymes that digest proteins

Answers

Answer:

Digestive Enzymes.

Explanation:

I don't really have an explanation.

Answer:

pancreas

Explanation:

(BRAINLIEST QUESTION) Match the genotype to the correct description.

Aa

AA

aa

Answers

Answer:

Aa is Heterozygous.  AA is Homzygous dominant and aa is Homzygous recessive. Hope this helps you :)

Explanation:

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