1
BIOD 171- Exam 2 Questions with Correct
Answers | Updated (100% Correct Answers)
True or False: Metabolism is a controlled set of biochemical
reactions that occur in living organisms in to maintain life Answer:
True
T/F: Enzymes are polysaccharides that catalyze chemical reactions
Answer: False (enzymes are proteins)
What are usually metal ions and assists enzyme during the catalysis
reaction? Answer: Cofactors
Define 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: The anabolic process
would be active as it is involved in the building up of small
complexes into larger complexes
Describe energy transfer process relative to both ATP and ADP
Answer: ATP has the energy (phosphate group) to donate while
ADP can accept energy in the form of a phosphate group. Thus ATP
can be reduced (ATP-ADP+Pi) while ADP can be built into ATP
(ADP+Pi-ATP)
© 2025 All rights reserved
, 2
An organism that derives its energy (generates ATP) from photons
of light is called Answer: Phototrophic microorganism
An organism that derives its energy by removing electrons from
elemental sulfur would be classified as Answer: Lithotroph
A reactive intermediate would be present in which phosphorylation
process Answer: ?
The chemical compound losing the phosphate group is referred to
as the Answer: phosphorylated reactive intermediate
The catabolism of a single molecule of glucose goes through what 3
distinct transitions Answer: Glycolysis, Fermentation or Respiration,
then the ETC- electron transport chain
What is the most energetic transition in the catabolism of glucose?
Answer: The electron transport chain yields 34 ATP while both
glycolysis and fermentation (or respiration) each yield only 2 ATP
Identify the reactants of the following chemical equation:
Glucose + 2NAD+ -> 2 NADH + 2 Pyruvate + 2ATP Answer: The
reactants are to the left of the arrow: Glucose and 2NAD+
The presence of what molecule 'signals' to the cell that glycolysis is
about to start? Answer: Glucose-6-phosphate (G6P)
© 2025 All rights reserved
BIOD 171- Exam 2 Questions with Correct
Answers | Updated (100% Correct Answers)
True or False: Metabolism is a controlled set of biochemical
reactions that occur in living organisms in to maintain life Answer:
True
T/F: Enzymes are polysaccharides that catalyze chemical reactions
Answer: False (enzymes are proteins)
What are usually metal ions and assists enzyme during the catalysis
reaction? Answer: Cofactors
Define 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: The anabolic process
would be active as it is involved in the building up of small
complexes into larger complexes
Describe energy transfer process relative to both ATP and ADP
Answer: ATP has the energy (phosphate group) to donate while
ADP can accept energy in the form of a phosphate group. Thus ATP
can be reduced (ATP-ADP+Pi) while ADP can be built into ATP
(ADP+Pi-ATP)
© 2025 All rights reserved
, 2
An organism that derives its energy (generates ATP) from photons
of light is called Answer: Phototrophic microorganism
An organism that derives its energy by removing electrons from
elemental sulfur would be classified as Answer: Lithotroph
A reactive intermediate would be present in which phosphorylation
process Answer: ?
The chemical compound losing the phosphate group is referred to
as the Answer: phosphorylated reactive intermediate
The catabolism of a single molecule of glucose goes through what 3
distinct transitions Answer: Glycolysis, Fermentation or Respiration,
then the ETC- electron transport chain
What is the most energetic transition in the catabolism of glucose?
Answer: The electron transport chain yields 34 ATP while both
glycolysis and fermentation (or respiration) each yield only 2 ATP
Identify the reactants of the following chemical equation:
Glucose + 2NAD+ -> 2 NADH + 2 Pyruvate + 2ATP Answer: The
reactants are to the left of the arrow: Glucose and 2NAD+
The presence of what molecule 'signals' to the cell that glycolysis is
about to start? Answer: Glucose-6-phosphate (G6P)
© 2025 All rights reserved
