online quiz chapter 7 bio
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69 Terms
Energy from redox reactions of the electron transport chain in aerobic respiration is used to transport H+ into the
intermembrane space
If one mole of NADH is provided to the electron transport chain, how
much ATP would you expect to be produced?
3 moles
In the overall process of aerobic respiration, glucose becomes…
oxidized to carbon dioxide
During fermentation, NADH…
provides energy to convert pyruvate into lactate or ethanol
Fermentation keeps glycolysis going in the absence of oxygen by
generating _, which is a required reactant of glycolysis.
NAD+
The transfer of electrons from glucose to oxygen during aerobic
respiration occurs as a result of many ___ reactions.
Redox
During the process of aerobic respiration, the six carbon atoms of
glucose…
are ultimately released as 6 molecules of carbon dioxide
Each molecule of FADH2 that enters the mitochondrial electron transport
chain will result in ? molecule(s) of ATP being formed.
two
In the absence of oxygen, yeast cells can produce ATP by switching to
the process of .
alcohol fermentation
In aerobic respiration, what is the total yield of ATP from oxidative
phosphorylation of one molecule of glucose?
32-34
Stages 1-2 of aerobic respiration begin with one molecule of glucose, and
produce 4 ATP + 10 NADH + 2 FADH2. Then in Stage 3, the NADH and
FADH2 are used to synthesize another 32-34 molecules of ATP by
oxidative phosphorylation.
Using this information, tell which of the following molecules has the most
potential free energy.
GLUCOSE
Urea is secreted in mammalian urine, and is a waste product produced by
the catabolism of
Amino Acids
For every glucose molecule, how many molecules of carbon dioxide are
released in the citric acid cycle?
4
To carry out chemiosmosis in a mitochondrion, there must be…
A higher concentration of hydrogen ions in the intermembrane space
The ATP produced in glycolysis is formed by…
substrate-level phosphorylation
In the process of aerobic respiration, glucose is… *
oxidized
In a redox reaction, the gain of electrons is called
reduction
Once a concentration gradient is established across the inner
mitochondrial membrane, the result is that…
there is a decrease of entropy
This figure illustrates the formation of ATP during glycolysis. The reaction depicted is
substrate-level phosphorylation
What is the enzyme complex that catalyzes oxidative phosphorylation?
ATP synthase
Which end product of glycolysis enters Stage 2 of aerobic respiration? *
pyruvate
What kind of reaction produces NADH in a cell? *
redox
The most immediate source of energy for chemiosmosis in aerobic
respiration is…
the proton gradient across the inner mitochondrial membrane
Compared with the intermembrane space, the pH of the mitochondrial
matrix will be…
high
FADH2 is produced in…
Citric Acid Cycle
Most of the free energy remaining after glycolysis is in the chemical
bonds of…
pyruvate
From one molecule of glucose, what is the maximum number of ATP
molecules that can be produced from chemiosmosis?
34
The first phase of glycolysis…
requires an input of energy
The reactants in the overall process of aerobic respiration are…
glucose and oxygen
The reactants in the first step of the citric acid cycle are acetyl-CoA and…
oxaloacetate
In eukaryotes, glycolysis occurs in the…
cytoplasm
What is the 4-carbon organic molecule that combines with the acetyl
group to begin the citric acid cycle?
oxaloacetate
The electron transport chain in mitochondria transports protons into…
the intermembrane space
What is the maximum net number of ATP molecules that can be
produced from one glucose molecule during aerobic respiration?
38
Which of these is NOT a product of glycolysis? *
carbon dioxide
In glycolysis, what is the net ATP yield of one molecule of glucose?
2 atp
ATP is a required reactant in… *
the first stage of glycolysis
In what stage(s) of aerobic respiration does decarboxylation occur,
resulting in the release of carbon dioxide?
I. Glycolysis
II. Oxidation of Pyruvate
III. Citric Acid Cycle
IV. Electron Transport
II and III only
Which of these processes produces carbon dioxide? *burning of wood
the citric acid cycle
the oxidation of pyruvate
alcohol fermentation
all of the above
all of the above