Microbiology BIOD 171
Module 2 Exam – Portage
learning 2025 Actual Exam
, True or false: metabolism is a controlled set of biochemical reactions that occur in living
organisms in order to maintain life. - CORRECT ANSWERS-True
True or fase: enzymes slow down chemical reactions to conserve energy - CORRECT
ANSWERS-False. They speed up (catalyze) chemical reactions
Term for metal ions that assist enzymes during catalysis reaction - CORRECT
ANSWERS-Cofactors
What is catabolism? - CORRECT ANSWERS-The process of breaking down larger
molecules into smaller ones (and useful energy sources)
Upon cellular injury, which metabolic process is involved during the growth and repair
phases of the cell? - CORRECT ANSWERS-Anabolism. It is the metabolic process to
build up small molecules into larger ones during growth and repair.
An organism that obtains its energy (derives ATP) from photons of light is
called_______________. - CORRECT ANSWERS-Phototrophic microorganism
An organism that derives energy by removing electrons from elemental sulfur is
classified as _______________. - CORRECT ANSWERS-Lithotroph
Describe the energy transfer process relative to both ADP and ATP - CORRECT
ANSWERS--ATP has the energy (phosphate group) to donate, and ADP can accept
energy in the form of a phosphate group through photophosphorylation, substrate-level
phosphorylation, or oxidative level phosphorylation.
-ADP can be phosphorylated into ATP (ADP + Pi -----> ATP)
-ATP can be dephosphorylated into ADP(ATP-----> ADP + Pi)
This phosphorylation occurs in the mitochondria or chemotropic eukaryotes -
CORRECT ANSWERS-Oxidative phosphorylation
The catabolism of a single molecule of glucose goes through what 3 distinct transitions?
- CORRECT ANSWERS-1. Glycolysis
2. Fermentation or respiration
3. Electron transport chain (ETC)
True or false: in the absence of oxygen, fermentation products 2 ATP - CORRECT
ANSWERS-False
What is the primary byproduct of the TCA cycle? - CORRECT ANSWERS-NADH and
FADH2
Module 2 Exam – Portage
learning 2025 Actual Exam
, True or false: metabolism is a controlled set of biochemical reactions that occur in living
organisms in order to maintain life. - CORRECT ANSWERS-True
True or fase: enzymes slow down chemical reactions to conserve energy - CORRECT
ANSWERS-False. They speed up (catalyze) chemical reactions
Term for metal ions that assist enzymes during catalysis reaction - CORRECT
ANSWERS-Cofactors
What is catabolism? - CORRECT ANSWERS-The process of breaking down larger
molecules into smaller ones (and useful energy sources)
Upon cellular injury, which metabolic process is involved during the growth and repair
phases of the cell? - CORRECT ANSWERS-Anabolism. It is the metabolic process to
build up small molecules into larger ones during growth and repair.
An organism that obtains its energy (derives ATP) from photons of light is
called_______________. - CORRECT ANSWERS-Phototrophic microorganism
An organism that derives energy by removing electrons from elemental sulfur is
classified as _______________. - CORRECT ANSWERS-Lithotroph
Describe the energy transfer process relative to both ADP and ATP - CORRECT
ANSWERS--ATP has the energy (phosphate group) to donate, and ADP can accept
energy in the form of a phosphate group through photophosphorylation, substrate-level
phosphorylation, or oxidative level phosphorylation.
-ADP can be phosphorylated into ATP (ADP + Pi -----> ATP)
-ATP can be dephosphorylated into ADP(ATP-----> ADP + Pi)
This phosphorylation occurs in the mitochondria or chemotropic eukaryotes -
CORRECT ANSWERS-Oxidative phosphorylation
The catabolism of a single molecule of glucose goes through what 3 distinct transitions?
- CORRECT ANSWERS-1. Glycolysis
2. Fermentation or respiration
3. Electron transport chain (ETC)
True or false: in the absence of oxygen, fermentation products 2 ATP - CORRECT
ANSWERS-False
What is the primary byproduct of the TCA cycle? - CORRECT ANSWERS-NADH and
FADH2
