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joja [24]
2 years ago
10

1) What is the function of the plasma membrane? (5pts)

Biology
1 answer:
kirill115 [55]2 years ago
3 0

Answer:

1.Plasma membrane is a semi permiable layer present in a plant cell.it allows only selected substances to pass in and out of the cell.

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Your research paper should start with your claim. b) In paragraph form, give two examples of scientific information that support
lisabon 2012 [21]

Your research paper should start with your claim in paragraph form, and give two examples of scientific information that support each part of your claim.

<h3>What do you mean by Research paper?</h3>

A research paper may be defined as a composition in which you illustrate what you have comprehended after investigating your chosen topic in depth.

Any research paper consists of an abstract, the methodology, observations, conclusions, and at last reference.

If your research paper supports the claim, then it will be formatted the claims in paragraph form, with two examples of scientific information that support each part of your claim.

Therefore, it is well described above.

To learn more about the Research paper, refer to the link:

brainly.com/question/26177190

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5 0
2 years ago
The experiment that Stanley L Miller and Harold C Urey conducted regarding the origin of life from inanimate matter was conducte
nignag [31]
For giving you understanding ; we need Free O2 but Oxygen is also available in H20 right why dont we use it !!

As the early atmosphere was reducing as there was no free oxygen but it was later produced by chemoautotrophic bacteria !! Living thing release O2 in atmosphere thus making it oxidising in nature and then life evolves !!
4 0
3 years ago
Read 2 more answers
The preferential use of phosphatidylinositol and phosphatidylethanolamine in the cytoplasmic leaflet of membranes leads to incre
spayn [35]

Answer:

The best answer to the question: The preferential use of phosphatidylinositol and phosphatidylethanolamine in the cytoplasmic leaflet of membranes leads to increased:___ would be, D: All of the answers are correct.

Explanation:

There is still a lot of debate among scientists as to the exact way in which phospholipids are distributed between the two leaflets of a cell´s plasma membrane, but what they do know is that there are four kinds, and that phosphatidylinositol (a sterol) and phosphatidylethanolamine appear most commonly on the cytosolic, or cytoplasmic side of the membrane. They also believe that it is this particular arrangement which allows the cytoplasmic side of the membrane to be slightly negatively charged and this role will play a major part in a membrane´s ability to generate an action potential. Also, it is known that these negatively charged ends of the bilayer will allow certain proteins, positively charged ones, to be inserted, and connected to it, to become transporters, or mediators in action potentials and normal activities of cells. Finally, since fatty acids and cholesterol are associated with phospholipids, but have a tendency to be attracted to these particular two types, they tend to give the overall structure fluidity, but also permit  the inner leaflet to assume its particular circular shape around the cytoplasm. This is why the answer is D.    

4 0
3 years ago
which of the following statements are true regarding active transport and facilitated diffusion (choose two answers) a) Active t
Vera_Pavlovna [14]

Answer: B and D

Explanation: We can break down why the correct answers are choices B and D by understanding why A and C are incorrect.

Option A states that active transport utilizes channel proteins, and facilitated diffusion utilizes carrier proteins. This is incorrect. Active transport involves carrier proteins, and facilitated diffusion involves channel proteins. Carrier proteins are different from channel proteins in that, while channel proteins can only facilitate the passive diffusion of ions into or out of the cell along their concentration gradient, carrier proteins can also use ATP to move ions in or out of the cell against their concentration gradient.

This brings us to why option C is also incorrect. Option C states that both processes require the input of energy in the form of ATP. While active transport requires the use of ATP to transport ions with or against their concentration gradient, facilitated diffusion does not. This is easily remembered when we consider that active transport is called *active* transport because the cell is *actively* using energy to transport ions.

Hope this helped.

7 0
3 years ago
White wheat flour is made from the tissue within the wheat kernel that nourishes the developing wheat embryo. what is this tissu
9966 [12]
The answer to your question is endosperm!
7 0
3 years ago
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