BIO 171 Module 2 Exam Questions & Answers
1. True or false: metabolism is a controlled set of biochemical reactions that
occur in living organisms in order to maintain life.
True
2. True or false: enzymes slow down chemical reactions to conserve energy
False, they speed up (catalyze) chemical reactions
3. The term for metal ions that assist enzymes during the catalysis reaction
Cofactors
4. What is catabolism?
The process of breaking down larger molecules into useful energy sources
5. Upon cellular injury, which metabolic process is involved during the growth
and repair phases of thecell?
Anabolism
6. An organism that obtains its energy (derives ATP) from photons of light is
called a
Phototrophic microorganism
7. An organism that derives its energy by removing electrons from elemental
sulfur would be classifiedas a
Lithotroph
, 8. Describe the energy transfer process relative to both ADP and ATP
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)
9. This phosphorylation process occurs in the mitochondria of chemotropic
eukaryotes
Oxidative phosphorylation
10. The catabolism of a single molecule of glucose goes through what three
transitions
The breakdown of glucose goes through 1. Glycolysis 2. Fermentation or
respiration and then 3. Electron transport chain ETC
11. True or false: in the absence of absence of oxygen fermentation produces
2 ATP False
12. What is the primary byproduct of the TCA cycle select?
NADH and FADH2
13. True or false: in the absence of oxygen fermentation produces 2 ATP
False, it does not produce any additional ATP
14. True or false: the reactants of the TCA cycle directly enter and fuel the
electron transport system
False
15. What are the main two roles of glucose 6 - phosphate in the cell?
G6P 1. Prevents glucose from diffusing out of the cell and
1. True or false: metabolism is a controlled set of biochemical reactions that
occur in living organisms in order to maintain life.
True
2. True or false: enzymes slow down chemical reactions to conserve energy
False, they speed up (catalyze) chemical reactions
3. The term for metal ions that assist enzymes during the catalysis reaction
Cofactors
4. What is catabolism?
The process of breaking down larger molecules into useful energy sources
5. Upon cellular injury, which metabolic process is involved during the growth
and repair phases of thecell?
Anabolism
6. An organism that obtains its energy (derives ATP) from photons of light is
called a
Phototrophic microorganism
7. An organism that derives its energy by removing electrons from elemental
sulfur would be classifiedas a
Lithotroph
, 8. Describe the energy transfer process relative to both ADP and ATP
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)
9. This phosphorylation process occurs in the mitochondria of chemotropic
eukaryotes
Oxidative phosphorylation
10. The catabolism of a single molecule of glucose goes through what three
transitions
The breakdown of glucose goes through 1. Glycolysis 2. Fermentation or
respiration and then 3. Electron transport chain ETC
11. True or false: in the absence of absence of oxygen fermentation produces
2 ATP False
12. What is the primary byproduct of the TCA cycle select?
NADH and FADH2
13. True or false: in the absence of oxygen fermentation produces 2 ATP
False, it does not produce any additional ATP
14. True or false: the reactants of the TCA cycle directly enter and fuel the
electron transport system
False
15. What are the main two roles of glucose 6 - phosphate in the cell?
G6P 1. Prevents glucose from diffusing out of the cell and
