I believe it would be a fossil of a reptile but I'm not a 100% sure about it.
The number of protons in a neutral atom equals the number of ELECTRONS.
Answer:
The correct answer is A) Conformation.
Explanation:
Proton pumps are usually molecules that are able to change its conformation in order to transport molecules from one side to the other. The amino acid sequence cannot be changed, because it would change completely the function of the protein. For example, the sodium/potassium pump changes its conformation in order to move these molecules from one side of the membrane to the other.
The answer is They help control what enters and leaves the cell
May to October octuder to Dedembera