Why is it important that cell membrane contain openings into the cell?

Answers

Answer 1

It is important that the cell membrane contains openings into the cell because different ions and molecules enter and exit the cell through pores (membrane channels) located in the membrane.


Related Questions

Nerve cells that can detect chemicals are:
A. chemoreceptors.
B. chemtransductors.
C. limbic system indicators.
D. neurotics.

Answers

Answer:

its Chemoreceptors

Explanation:

A chemoreceptor, also known as chemosensor, is a specialized sensory receptor cell which transduces a chemical substance to generate a biological signal.

PLEASE ASAP NEED HELP PLEASEEE !!!!

Answers

Answer:

Hunting in groups,  keen eyesight, chemicals to paralyze prey

Explanation:

Answer:

Hunting in groups

Keen Eyesight

and Camouflage

Explanation:

These are all the main adaptations that predators are born with. The rest of them do not help them at all. PLease give brainliest :)

1. Carbon is a very important element in biology. What are some of the reasons that organisms need carbon? please help me

Answers

Answer:

"All living orgasms contain carbon and all virtual molecules in the body contain carbon, sugar, DNA, proteins, Fats..."

Explanation:

Hope this helps :)

You added 20 g of NaCl to 100 g of water. What is the percent by mass of the solute?

Answers

Answer: We are given:

Mass of solvent (water) = 100 grams

Mass of solute (NaCl) = 20 grams

Mass of the Solution:

Mass of Solution = Mass of Solute + mass of Solvent

100 + 20 = 120 grams

Mass Percent of NaCl:

We know that

mass percent of NaCl = (Mass of NaCl / Mass of Solution) * 100

replacing the variables

Mass% of NaCl = (20 / 120)*100

Mass% of NaCl = 100 / 6

Mass% of NaCl = 16.67%

Explanation:

What agent of erosion is this? Gravity,wind, waves, running water or glaciers.

Answers

Answer:

wind                                        

Explanation:

20 points and will mark brainliest!! Explain how you got it!

Answers

Answer:

OF COUSE IT C

Explanation:

Answer:

C

Explanation:

I think the answer is C.

The different kinds of water effects the water and the sunlight. This helps show how much water and sunlight each plant gets and it will bring results.

I hope this helps you! Have a great day!

1. Which part of the cell membrane acts like bridge and only allows certain materials in and out
2.
Because a membrane is picky and only lets in certain materials the membrane in considered_______

Answers

Answer:

1.phospholipid bilayer

2. selectively permeable

is pathogen a bacteria and a virus? Or just a virus or just a bacteria ?

Answers

Answer:

Both a Bacteria and Viruse

Explanation:

Pathogens are taxonomically widely diverse and comprise viruses and bacteria as well as unicellular and multicellular eukaryotes.

A pathogen is both bacteria and virus but there are other pathogens as well. Pathogen is a very broad term and is just any organism that causes decease.

Interphase
21. Before Meiosis, comes
cell activities, like making
During interphase, the ce
for example.
22. Uncoiled stringy DNA is called​

Answers

uncoiled stringy dna is called chromatin

PLEASE HEL ME!!!!!!!!!

Answers

Answer:

the accurate one is layer C is younger then layer A

Explanation:

Answer:

I think it would be safe to say that the answer is:

Layer C is younger than layer A.

Explanation:

Looking at the graph it's shown D-A youngest to eldest and knocking out the fact that Layer D is above C and it appears B is not the eldest layer, I'm sure the first point is the answer!! I hope this helped!

Which type of growth occurs when population growth slows or stops after a period of exponential growth?
decreasing
exponential
linear
logistic

Answers

Answer:

B

Explanation:

Answer:

B

Explanation:

A student was asked the following question on her biology final exam
question : how do organisms grow in size
her answer : “organisms grow in size when the cells within the organism grow larger. As the cells grow larger the organism grows larger as well
Explain why her answer is not correct then explain how she should have answered the question

Answers

The cell can grow large but not the organisms. Once the cell is growing the organisms grow smaller. I think hope it correct

What is antibiotic resistance and why should we be
worried?

Answers

Answer: Antibiotic resistance is when bacteria develops a resistance or an immunity against antibiotics. If this evolution/adaptation becomes widespread, our healthcare system could see a mass rise in deaths due to us not being be able to effectively treat the bacteria which is causing harm.

Explanation:

I learned about this

What do living things need to live and grow?

Answers

Answer:

All living things need some form of water. Most need oxygen.

Explanation:

what were some of the earliest life forms? and what were they like

Answers

The earliest forms of life were microorganisms. These organisms appeared about 3.77 billion years ago.

Pls help i will mark brainliest

Answers

Answer:

B. Warm ocean water...

Explanation:

Identify the converted product of the photosynthesis process.​

Answers

During the process of photosynthesis plants break apart the reactants of carbon dioxide and water and recombine them to produce oxygen (O2) and a form of sugar called glucose (C6H12O6).

Of all of the energy given off by the Sun directed towards Earth, approximately only 50 percent of the energy penetrates directly to
the surface of Earth. What is the best explanation for what happens to the rest of the energy?

A) Energy is lost during while traveling through space.

B) Energy is reflected or absorbed by Earth's atmosphere.

C) Some of the energy is reflected back into space by the Moon.

D) Energy is lost through the process of overcoming the Sun's large gravitational force.

Answers

The answer is C) some of the energy is reflected back into space by the moon

If a dog had the genotype Aa, what color (phenotype) would his fur be?
A. Brown
B. White

Answers

Answer:

A

Explanation:

For each of the genotypes below determine what the phenotype would be. ... AA  DOM Ff ... In dogs, the gene for fur color has two alleles. ... phenotypes and genotypes of their possible puppies by using a  Square.

What is the difference between a molecule and a diagram of a molecule ?

Answers

Answer: The molecule itself is the actual thing present.

while the diagram explains what makes up a molecule or what it looks like structurally

Explanation:

Which best describes the progress of science

Answers

Answer:

Scientific ideas are changed when better ones are found.

Explanation:

carlos made a diagram to compare two kinds of fish. which label belongs in the area marked Z?

a. scales
b. no jaw
c. swim bladder
d. skeleton made of bones

PLEASE HELP

Answers

Answer:

B

Explanation:

i also do edge

What occurs during the digestion of proteins?
A) Specific enzymes break down proteins into amino acids
B) Specific hormones break down proteins into simple sugars
c) Specific hormones break down proteins into complex carbohydrates
D) Specific enzymes break down proteins into simple sugars

Answers

Answer:

Specific enzymes break down proteins into amino acids

The process happens in the digestion of proteins, specific enzymes break down proteins into amino acids.

What are enzymes?

Enzymes are the proteins that are helpful in the increasing the rate of any reaction. Enzymes also present in the body, they help in digestion of different substances in the body. Different enzymes work on different substances.

Thus, the correct option is A) Specific enzymes break down proteins into amino acids.

Learn more about protein

https://brainly.com/question/17095120

#SPJ2

Which structure of the lymphatic system functions as the site of development of T lymphocytes during childhood and the preteen years, but is replaced by fat as an individual grows older?
thymus
bone marrow
spleen
adenoids

Answers

Answer: thymus

Explanation: T cells adapt in the immune system just like the thymus

Answer:

Thymus

Explanation:

I don't actually know so I'm sorry if it is wrong

Have a great day!!!!!

A wave carries from one place to another. Mechanical waves carry energy through

Answers

Answer:

Mechanical waves bring energy from one place; the media or space conduct electricity through electromagnetic radiation.

Explanation:

Energy flow is parallel to wave motion. To pass across, the wave needs a source. Electromagnetic radiation bring energy to the surroundings; they conduct electricity via media and room by mechanical waves. 

Answer:

Energy

Matter

Explanation:

i did the lesson

Anaerobes carry on whereas aerobes carry on cellular respiration

Answers

Answer:

Anaerobes carry on cellular respiration in the absence of oxygen, whereas aerobes carry on cellular respiration in the presence of oxygen.        

Explanation:

Many of the cell processes needed need some energy to occur. Cellular respiration is the process by which cells degrade organic compounds and turn them into energy. Cellular respiration follows two ways, which depend on the presence or absence of oxygen, and both of them begin with the process of glycolysis, which occurs in the cytoplasm and does not need oxygen to occur.

Aerobic Respiration

Occurs in the presence of free oxygen.Series of reactions by which pyruvic acid (product of glycolysis) turns into CO₂ and H₂O, producing many ATP molecules. Respiration occurs in the mitochondria.Takes place in two steps or stages: Krebs cycle and electron transporter chain. Glycolysis and Krebs cycle produce electrons, which then travel along the electron transporter chain while releasing energy, and ATP is produced.

Anaerobic Respiration

Occurs in the absence of free oxygenSeries of reactions by which using pyruvate (product of glycolysis) 2 ATP molecules van be produced. There are two ways in which anaerobic respiration can be produced: lactic fermentation and alcoholic fermentation. Lactic fermentation produces lactic acid and 2 ATPAlcoholic fermentation occurs in two steps, and the final products are ethylic alcohol, 2ATP, and 2 CO₂The whole anaerobic process occurs outside the mitochondria.

4. Transcribe and Translate a Gene. How is mRNA different from DNA? (Hint read the side-bar on this page for help) What is the correct starting position for translation? Write the amino acids used to assemble your protein in the order below. Where does translation take place?​

Answers

The genes in DNA encode protein molecules, which are the "workhorses" of the cell, carrying out all the functions necessary for life. For example, enzymes, including those that metabolize nutrients and synthesize new cellular constituents, as well as DNA polymerases and other enzymes that make copies of DNA during cell division, are all proteins.

In the simplest sense, expressing a gene means manufacturing its corresponding protein, and this multilayered process has two major steps. In the first step, the information in DNA is transferred to a messenger RNA (mRNA) molecule by way of a process called transcription. During transcription, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then processed to form mature mRNA (1). The resulting mRNA is a single-stranded copy of the gene, which next must be translated into a protein molecule.

What do we mean when we say that the resulting ADP molecule is recycled?

Answers

ATP A ADP + P + energy here's what it looks like chemically, Each phosphate is a Po4( oxygen has a charge of -2 and there are 4 of them, for a total of - 8 and P has a charge of +5, so the net charge of the phosphate group is -3 if free H atom, which are +1, get added to the 0 atoms that aren't bonded to two things then the net charge is zero.)

Write any three differences between mass and weight


please its aurgent fast ​

Answers

Answer:

See explanation

Explanation:

There are a number of differences between mass and weight, they include;

Mass is  a scalar quantity whereas weight is a vector quantity.

Mass is dependent on the quantity of matter present in a body whereas weight depends on the acceleration due to gravity in a particular location on the earths surface.

The SI unit of mass is kilogram whereas the SI unit of weight is Newton.

List 3 organisms that are made of plant cells:

Answers

Answer:

Seed Plants

Ferns

Mosses

Thallophytes

Explanation:

Other Questions
is minors not being allowed to do drugs a national law? List and briefly describe three popular forms of ownership used in the lodging industry that allow for rapid expansion. 2. According to Cotter, what experiences in Kiki Smiths life have fueled her fascination with the body? Which statement best describes the Kids influence on Lizzie? A salesman needed to sell a used car. He priced it at $4,500 the first day it was on themarket. The second day he reduced the price by 12%. What was the price of the used car after this reduction? how did tax rates change for top earners in the 1920s please help now don't just guess How does the author use foreshadowing yo contributor to the story's overall meaning? Explain at least two examples of foreshadowing and how they develop the theme of the story what are the problems of teaching finance in schools in context what does the phrase "strong manhood gray" most suggest A lamp is on sale for 10% off the regular price of $159. What is the sale price of the lamp?$143.10$145.90$147.50$149.00 How did most Americans/Europeansettlers react to the process of removing Native tribes from their land? Henry Uploaded the photos birthday to a cloud storage system. He feels that it's a safe option for data storage. His friend suggested that there Maybe a disadvantage to cloud storage. Which disadvantage is Henry's friend referring to? 3x-9=7x+14 solve for x Write the slope intercept form of the graph plz Complete the following questions using the appropriate interrogative word Can someone help me find the perimeter of this Question 4 of 5Which fraction is equal to 45%?A.4.5100OB.1004545100 D.100450SUBMIT What is one way during the G0 phase that a mistake during the cell cycle could result in problens for the G0 phase? List three people who helped make travel to the West easier. Explain what they did. help!!!