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Olin [163]
3 years ago
6

The plasma membrane is composed of a phospholipid bilayer with embedded proteins what is one of the functions of the embedded pr

oteins
Biology
1 answer:
Sonja [21]3 years ago
4 0
Transport proteins (carrier proteins and channel proteins) allow substances into and out of the cell that cannot pass through the phospholipid bilayer (as they’re either to large, charged or not lipid soluble) by facilitated diffusion.
Specifically channel proteins allow ions into and out of the cell by creating a pore in the membrane in which they can move through with their concentration gradient
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Female mammals have two x chromosomes, one from their mother and one from their father. during x inactivation, one x chromosome
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Because of the fact that female mammals have chromosomes from both parents (from the father and from the mother) and all cells have the same inactivated X chromosome  female mammals are considered to be mosaic <span>of the maternal and paternal cells.</span>
4 0
3 years ago
When the protein gramicidin is integrated into a membrane, an H+ channel forms and the membrane becomes very permeable to proton
jeka57 [31]

Answer with Explanation:

Gramicidine is an antibiotic that has a polypeptide structure and is composed of 3 chains. This molecule can adopt a structure called beta 6-3 helix, so as to form a channel through the cell membrane of bacteria which allows the passage of ions (in this case cations) such as H +, K + or Na +, this situation leads to that in the cell alterations in the content of cellular cations are generated, among the effects the loss of potassium that can cause the death of the cell due to hemolysis due to alteration in the permeability of the membrane is highlighted. This effect is known as the ionophore effect.

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The damage that the entire previous situation produces on oxidative phosphorylation, leads to the refusal of ADP refosphorylation, then ADP and its hydrolysis products will accumulate, and finally the result will be a decrease in ATP levels.

3 0
2 years ago
Sometimes a new experimental result may seem to go against a well-established scientific theory. Which statement BEST describes
attashe74 [19]

C.) New results should be verified by more experiments before it is accepted

3 0
3 years ago
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Learn more: brainly.com/question/32531

6 0
2 years ago
6. The total mass of living tissue at each trophic level
Dimas [21]

Answer:

C

Explanation:

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b. only counts number of each organism

c. counts total mass of living tissue

d. i'm not familiar with but doesn't look right

8 0
2 years ago
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