Learning Microbio 171 BIOD
2026 Exam Questions and
Correct Answers | New Update
True or false: metabolism is a controlled set of biochemical reactions that
occur in living organisms in order to maintain life. - ANSWER ✔✔True
True or false: enzymes slow down chemical reactions to conserve energy
- ANSWER ✔✔false, they speed up (catalyze) chemical reactions
The term for metal ions that assist enzymes during the catalysis reaction
- ANSWER ✔✔cofactors
, What is catabolism? - ANSWER ✔✔The process of breaking down
larger molecules into useful energy sources
Upon cellular injury, which metabolic process is involved during the
growth and repair phases of the cell. - ANSWER ✔✔anabolism
An organism that obtains its energy (derives ATP) from photons of light
is called a __________________ - ANSWER ✔✔phototrophic
microorganism
An organism that derives its energy by removing electrons from
elemental sulfur would be classified as a ____________ - ANSWER
✔✔Lithotroph
Describe the energy transfer process relative to both ADP and ATP -
ANSWER ✔✔ATP has the energy (phosphate group) to donate, and
ADP can accept energy in the form of a phosphate group. Thus, ATP can
be dephosphorylated (ATP-----> ADP + Pi), while ADP can be
dephosphorylated into ATP (ADP + Pi -----> ATP)
This phosphorylation process occurs in the mitochondria of chemotropic
eukaryotes - ANSWER ✔✔oxidative phosphorylation