1|Page
BIOD 101 Module 3 Exam Portage Learning
2025/2026 Questions With 100% Detailed Answers
The first step of the CAC is a ____________ phase
sometimes simply called ______ oxidation. - ANSWER-
preparation; pyruvate
True or False: The electron transport chain is an anabolic
pathway. - ANSWER-False; the electron transport chain is
catabolic pathway
How does the electron transport chain generate ATP? -
ANSWER-Notably, the ETC does not directly produce any
ATP. However, establishing a proton gradient across the
,2|Page
mitochondrial membrane will lead to the production of ATP
via ATP synthase
What creates the proton-motive force? - ANSWER-As
more and more protons, enter the inter-membrane space,
the concentration of protons increases creating a proton-
motive force
Directions six of the citric acid cycle results in the
formation of which intermediate - ANSWER-Fumarate
Redox reactions - ANSWER-When there is a transfer of
one or more electrons from one reactant to another.
,3|Page
types of redox reactions - ANSWER-oxidation and
reduction
Oxidation (OIL) - ANSWER-an electron (or hydrogen
atom) is lost from a substrate
Reduction (RIG) - ANSWER-the lost electron FROM
OXIDATION is transferred to another substrate; the
substrate GAINS an electron, but REDUCES the charge
Dehydration Condensation Reaction - ANSWER-occur
when two or more monomers are joined together, and as a
part of the reaction, a molecule of water is lost
, 4|Page
What molecules are loss during Dehydration
Condensation Reaction? - ANSWER-Water, but others
include hydrogen chloride, methanol, or acetic acid.
Does Dehydration Condensation Reaction require energy?
- ANSWER-YES!
Dehydration Reaction - ANSWER-A reaction used to join
monomers in order to form polysaccharides; loses water
How is Dehydration Reaction different from Dehydration
Condensation Reaction? - ANSWER-Only WATER is lost
BIOD 101 Module 3 Exam Portage Learning
2025/2026 Questions With 100% Detailed Answers
The first step of the CAC is a ____________ phase
sometimes simply called ______ oxidation. - ANSWER-
preparation; pyruvate
True or False: The electron transport chain is an anabolic
pathway. - ANSWER-False; the electron transport chain is
catabolic pathway
How does the electron transport chain generate ATP? -
ANSWER-Notably, the ETC does not directly produce any
ATP. However, establishing a proton gradient across the
,2|Page
mitochondrial membrane will lead to the production of ATP
via ATP synthase
What creates the proton-motive force? - ANSWER-As
more and more protons, enter the inter-membrane space,
the concentration of protons increases creating a proton-
motive force
Directions six of the citric acid cycle results in the
formation of which intermediate - ANSWER-Fumarate
Redox reactions - ANSWER-When there is a transfer of
one or more electrons from one reactant to another.
,3|Page
types of redox reactions - ANSWER-oxidation and
reduction
Oxidation (OIL) - ANSWER-an electron (or hydrogen
atom) is lost from a substrate
Reduction (RIG) - ANSWER-the lost electron FROM
OXIDATION is transferred to another substrate; the
substrate GAINS an electron, but REDUCES the charge
Dehydration Condensation Reaction - ANSWER-occur
when two or more monomers are joined together, and as a
part of the reaction, a molecule of water is lost
, 4|Page
What molecules are loss during Dehydration
Condensation Reaction? - ANSWER-Water, but others
include hydrogen chloride, methanol, or acetic acid.
Does Dehydration Condensation Reaction require energy?
- ANSWER-YES!
Dehydration Reaction - ANSWER-A reaction used to join
monomers in order to form polysaccharides; loses water
How is Dehydration Reaction different from Dehydration
Condensation Reaction? - ANSWER-Only WATER is lost
