BIOL 2051 EXAM 2 UPDATED ACTUAL
Questions and CORRECT Answers
Sum of all catabolic and anabolic reactions - CORRECT ANSWER✔✔- metabolism
Energy-producing reactions - CORRECT ANSWER✔✔- catabolic
Biosynthetic (energy-using) reactions - CORRECT ANSWER✔✔- anabolic
Oxidation Reduction (___) reactions - CORRECT ANSWER✔✔- redox
Oxidation deals with the ___ of electrons. - CORRECT ANSWER✔✔- loss (OIL)
Reduction deals with the ___ of electrons. - CORRECT ANSWER✔✔- gain (RIG)
Explain redox reactions - CORRECT ANSWER✔✔- An electron donor transfers electrons to
an acceptor. The donor become oxidized and the acceptor becomes reduced.
What is NADH? Oxidized or reduced? - CORRECT ANSWER✔✔- reduced
What is NAD+? Oxidized or reduced? - CORRECT ANSWER✔✔- oxidized
What does an electron carrier do? - CORRECT ANSWER✔✔- help transfer electrons from
donor to acceptor
Why are NAD and NADH often referred to as coenzymes? - CORRECT ANSWER✔✔-
they work so closely together
___ transfer of electrons from a donor to acceptor is not always possible. - CORRECT
ANSWER✔✔- direct
, What does an enzyme do? - CORRECT ANSWER✔✔- convert substrate to product more
efficiently
The enzyme binds to the ___ - CORRECT ANSWER✔✔- substrate
Explain NAD+ reduction. - CORRECT ANSWER✔✔- Enzyme I reacts with a substrate
(electron donor) and oxidized form of coenzyme, NAD+. This then yields NADH and the
substrate oxidized.
What is the electron donor is the citric acid cycle? - CORRECT ANSWER✔✔- isocitrate
A _____ is an enzyme that oxidizes a substrate by transferring one or more protons and a pair
of electrons to an acceptor, usually NAD/NADP, FAD or FMN. - CORRECT ANSWER✔✔-
dehydrogenase
Explain NADH oxidation. - CORRECT ANSWER✔✔- Enzyme II reacts with the substrate
(electron acceptor) and the reduced form of the coenzyme, NADH. This then yields NAD+
and the substate reduced.
___ is released from redox reactions. - CORRECT ANSWER✔✔- energu
Energy is stored in ___ and transported wherever needed. - CORRECT ANSWER✔✔-
molecules
What are the two types of energy storage compounds? - CORRECT ANSWER✔✔- short
term and long term
What are the short term energy storage compounds? - CORRECT ANSWER✔✔- ATP and
derivatives of coenzyme A
What is considered the primary energy carrier in the cell? - CORRECT ANSWER✔✔- ATP
Questions and CORRECT Answers
Sum of all catabolic and anabolic reactions - CORRECT ANSWER✔✔- metabolism
Energy-producing reactions - CORRECT ANSWER✔✔- catabolic
Biosynthetic (energy-using) reactions - CORRECT ANSWER✔✔- anabolic
Oxidation Reduction (___) reactions - CORRECT ANSWER✔✔- redox
Oxidation deals with the ___ of electrons. - CORRECT ANSWER✔✔- loss (OIL)
Reduction deals with the ___ of electrons. - CORRECT ANSWER✔✔- gain (RIG)
Explain redox reactions - CORRECT ANSWER✔✔- An electron donor transfers electrons to
an acceptor. The donor become oxidized and the acceptor becomes reduced.
What is NADH? Oxidized or reduced? - CORRECT ANSWER✔✔- reduced
What is NAD+? Oxidized or reduced? - CORRECT ANSWER✔✔- oxidized
What does an electron carrier do? - CORRECT ANSWER✔✔- help transfer electrons from
donor to acceptor
Why are NAD and NADH often referred to as coenzymes? - CORRECT ANSWER✔✔-
they work so closely together
___ transfer of electrons from a donor to acceptor is not always possible. - CORRECT
ANSWER✔✔- direct
, What does an enzyme do? - CORRECT ANSWER✔✔- convert substrate to product more
efficiently
The enzyme binds to the ___ - CORRECT ANSWER✔✔- substrate
Explain NAD+ reduction. - CORRECT ANSWER✔✔- Enzyme I reacts with a substrate
(electron donor) and oxidized form of coenzyme, NAD+. This then yields NADH and the
substrate oxidized.
What is the electron donor is the citric acid cycle? - CORRECT ANSWER✔✔- isocitrate
A _____ is an enzyme that oxidizes a substrate by transferring one or more protons and a pair
of electrons to an acceptor, usually NAD/NADP, FAD or FMN. - CORRECT ANSWER✔✔-
dehydrogenase
Explain NADH oxidation. - CORRECT ANSWER✔✔- Enzyme II reacts with the substrate
(electron acceptor) and the reduced form of the coenzyme, NADH. This then yields NAD+
and the substate reduced.
___ is released from redox reactions. - CORRECT ANSWER✔✔- energu
Energy is stored in ___ and transported wherever needed. - CORRECT ANSWER✔✔-
molecules
What are the two types of energy storage compounds? - CORRECT ANSWER✔✔- short
term and long term
What are the short term energy storage compounds? - CORRECT ANSWER✔✔- ATP and
derivatives of coenzyme A
What is considered the primary energy carrier in the cell? - CORRECT ANSWER✔✔- ATP
