Answer:
A process called cellular respiration, chemical energy in food is converted into chemical energy that the cell can use, and stores it in molecules of ATP. When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy stored in the bond that the cell can use to do work.
Explanation:
I actually found this perfect example on the internet. Its the first part to your question.
C) To gather info about the natural world, to explain natural phenomena, and allow reasonable predictions of future events
A membrane that allows only some materials to move in and out of the cell is B. Semipermeable.
