CCRI micro exam 2 vito EXAM, ||
Questions and Answers ||
Complete Test, Practice
Questions, Verified Answer Key,
and Study Guide for (Latest 2026
Edition)
active site - answer- biding site of a substrate to an enzyme for a chemical reaction
substrate - answer- reactant of an enzyme-catalyzed reaction
competitive inhibitor - answer- an inhibitor that binds to the same active site as an
enzyme's substrate, thereby competing with the substrate
noncompetitive inhibitor - answer- A substance that reduces the activity of an enzyme
by binding to a location remote from the active site, changing its conformation so that it
no longer binds to the substrate.
coenzyme - answer- cofactor that binds to an apoenzyme to form an active enzyme
haloenzyme - answer- apoenzyme + cofactor (active enzyme)
redox reaction - answer- A chemical reaction involving the transfer of one or more
electrons from one reactant to another; also called oxidation-reduction reaction.
Nicatinamide Adenine Dinucleotide (NAD) - answer- coenzyme, exists in oxidized
(NAD+) and reduced (NADH) forms.
flavin adenine dinucleotide (FAD) - answer- An energy carrier that accepts electrons
and feeds them into the electron transport chain
Enzymes work best at - answer- specific pHs and temperatures
Glycolysis - answer- the breakdown of glucose by enzymes, releasing energy and
pyruvic acid.
glycolysis nets ___ ATP - answer- 2 (gross 4)
, glycolysis creates ___ NADH - answer- 2
Intermediate step is ____ it generates ____ - answer- Pyruvic acid (from glycolysis) is
oxidized
Generates 2 NADH (one for each pyruvic acid) and 2 CO2
Krebs cycle is ____, it produces ____ NADH, ___ FADH, ___ ATP
This totals ___ ATP total (including indirectly from NADH/FADH) - answer- second
stage of cellular respiration, in which pyruvic acid is broken down into carbon dioxide in
a series of energy-extracting reactions
6 NADH (3x2), 2 FADH (1x2), and 2 ATP (1x2)
Total: 24 ATP
oxidative phosphorylation, per molecule of NADH, ___ H+ are pumped across the inner
mitochondrial membrane, ____ per FADH - answer- The production of ATP using
energy derived from the redox reactions of an electron transport chain; the third major
stage of cellular respiration.
6 H+ are pumped across per mole of NADH, 4 per FADH
NADH is indirectly responsible for ___ ATP, FADH: ___ - answer- NADH: 3, FADH: 2
2H+ are responsible for 1 ATP @ ATP synthase
Aerobic respiration produces ___ ATP in Eukaryotes, and ___ in prokaryotes. The
difference accounts from: ____ - answer- Euk: 36
Pro: 38
Eukaryotes need to use 2 ATP to get NADH across the mitochondrial membrane
fermentation (anaerobic respiration), produces ___ ATP - answer- enable cells to
produce ATP without the use of oxygen
produces 2 ATP *not enough for living on but better than nothing!
Humans perform ____ fermentation because of ____ - answer- Lactic Acid
Fermentation as a result of oxygen debt
Ethyl Alcohol Fermentation - answer- a type of anaerobic cellular respiration that
changes pyruvic acid into carbon dioxide and ethyl alcohol
Questions and Answers ||
Complete Test, Practice
Questions, Verified Answer Key,
and Study Guide for (Latest 2026
Edition)
active site - answer- biding site of a substrate to an enzyme for a chemical reaction
substrate - answer- reactant of an enzyme-catalyzed reaction
competitive inhibitor - answer- an inhibitor that binds to the same active site as an
enzyme's substrate, thereby competing with the substrate
noncompetitive inhibitor - answer- A substance that reduces the activity of an enzyme
by binding to a location remote from the active site, changing its conformation so that it
no longer binds to the substrate.
coenzyme - answer- cofactor that binds to an apoenzyme to form an active enzyme
haloenzyme - answer- apoenzyme + cofactor (active enzyme)
redox reaction - answer- A chemical reaction involving the transfer of one or more
electrons from one reactant to another; also called oxidation-reduction reaction.
Nicatinamide Adenine Dinucleotide (NAD) - answer- coenzyme, exists in oxidized
(NAD+) and reduced (NADH) forms.
flavin adenine dinucleotide (FAD) - answer- An energy carrier that accepts electrons
and feeds them into the electron transport chain
Enzymes work best at - answer- specific pHs and temperatures
Glycolysis - answer- the breakdown of glucose by enzymes, releasing energy and
pyruvic acid.
glycolysis nets ___ ATP - answer- 2 (gross 4)
, glycolysis creates ___ NADH - answer- 2
Intermediate step is ____ it generates ____ - answer- Pyruvic acid (from glycolysis) is
oxidized
Generates 2 NADH (one for each pyruvic acid) and 2 CO2
Krebs cycle is ____, it produces ____ NADH, ___ FADH, ___ ATP
This totals ___ ATP total (including indirectly from NADH/FADH) - answer- second
stage of cellular respiration, in which pyruvic acid is broken down into carbon dioxide in
a series of energy-extracting reactions
6 NADH (3x2), 2 FADH (1x2), and 2 ATP (1x2)
Total: 24 ATP
oxidative phosphorylation, per molecule of NADH, ___ H+ are pumped across the inner
mitochondrial membrane, ____ per FADH - answer- The production of ATP using
energy derived from the redox reactions of an electron transport chain; the third major
stage of cellular respiration.
6 H+ are pumped across per mole of NADH, 4 per FADH
NADH is indirectly responsible for ___ ATP, FADH: ___ - answer- NADH: 3, FADH: 2
2H+ are responsible for 1 ATP @ ATP synthase
Aerobic respiration produces ___ ATP in Eukaryotes, and ___ in prokaryotes. The
difference accounts from: ____ - answer- Euk: 36
Pro: 38
Eukaryotes need to use 2 ATP to get NADH across the mitochondrial membrane
fermentation (anaerobic respiration), produces ___ ATP - answer- enable cells to
produce ATP without the use of oxygen
produces 2 ATP *not enough for living on but better than nothing!
Humans perform ____ fermentation because of ____ - answer- Lactic Acid
Fermentation as a result of oxygen debt
Ethyl Alcohol Fermentation - answer- a type of anaerobic cellular respiration that
changes pyruvic acid into carbon dioxide and ethyl alcohol
