After A Natural Disaster , Population Usually Decreases Due To Death Or People Fleeing From Their Home .
Both "depends upon the binding of that substance to a specific site on the membrane protein" and "depends upon movement of proteins from one side of the membrane to the other" are correct.
The saturation effect prevents statement 2 from being true.
Answer:
ATP functions as the energy currency for cells. It allows the cell to store energy briefly and transport it within the cell to support endergonic chemical reactions. The structure of ATP is that of an RNA nucleotide with three phosphates attached.
The viral capsid and envelope <span>plays a role in attaching a virion to the host cell.</span>
