Like all cells, the cell shown in the diagram below requires energy to carry out life processes.

a) chemical energy is used to synthesize sugars from oxygen and carbon dioxide.

b) light is used to synthesize sugars from water and carbon dioxide.

c) light and chemical energy are used to breakdown sugars and other molecules in the presence of carbon dioxide.

d) sugars and other molecules are broken down in the presence of oxygen to produce the energy storage compound atp.

When you are making a guess you are forming a hypothesis

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.

They don’t store and transmit heredity