Question

multiple choice 1 point
complete oxidation of glucose to co₂ involves two different mechanisms for synthesizing atp: oxidative phosphorylation and substrate - level phosphorylation. which is true of substrate - level phosphorylation?
atp is generated by release of energy from the electron carriers nadh and fadh₂
an enzyme catalyzes the transfer of a phosphate group to adp from an organic molecule to form atp.
most of the atp generated in cellular respiration is generated by substrate - level phosphorylation.
atp is generated indirectly through the transfer of high - energy electrons from electron carriers to an electron transport chain.
none of the choices are correct.
multiple choice 1 point
which best describes energy production during cellular respiration?
a small amount of energy is produced by substrate - level phosphorylation; most is produced by oxidative phosphorylation.
none of the answer options is correct.
it depends on the organism. some produce most of their energy by substrate - level phosphorylation, and some produce most of their energy by oxidative phosphorylation.
an equal amount is produced by oxidative phosphorylation and substrate - level phosphorylation.
a small amount of energy is produced by oxidative phosphorylation; most is produced by substrate - level phosphorylation.

Explanation:

For question 4, substrate - level phosphorylation is the process where an enzyme catalyzes the transfer of a phosphate group to ADP from an organic molecule to form ATP. For question 5, in cellular respiration, a small amount of energy is produced by substrate - level phosphorylation and most is produced by oxidative phosphorylation.

Answer:

1. B. An enzyme catalyzes the transfer of a phosphate group to ADP from an organic molecule to form ATP.
2. A. A small amount of energy is produced by substrate - level phosphorylation; most is produced by oxidative phosphorylation.