Which of the following describes the maximum energy of a photoelectron?

a. the maximum energy of a photoelectron is always the same as the energy of the incident photon.

b. the maximum energy of a photoelectron cannot be greater than the energy of the incident photon plus the minimum energy needed to escape from the surface of the metal.

c. the maximum energy of a photoelectron cannot be greater than the energy of the incident photon minus the minimum energy needed to escape from the surface of the metal.

d. the maximum energy of a photoelectron is less than the work function of the metal.

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.