Answer:
Explanation:
ADP (Adenosine diphosphate) is a starting material in respiration. Through the process of respiration a 3rd phosphate is added to the compound to make it ATP (Adenosine Triphosphate). This extra phosphate in the end product is what allows the cell to use the compound for energy.
NAD and NADH are used in the electron transport chain but not going to be the energy molecule
You can make a solution saturated by adding more solute so letter B
Oil the answer is c ur welcome sorry if late :)
Answer:
It controls what enters or leaves the cell, and is responsible for allowing nutrients in the cell.
