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Chapter 6 Test Review
Test Description: Study Review for Chapter 6 Test
Instructions: Answer all questions to get your test result.
1) As a result of glycolysis there is a net gain of ________ ATPs.
A
0
B
2
C
1
D
4
2) How do cells capture the energy released by cellular respiration?
A
They produce glucose.
B
The energy is coupled to oxygen.
C
They produce ATP.
D
They store it in molecules of carbon dioxide.
3) Bacteria that are unable to survive in the presence of oxygen are called
A
obligate anaerobes.
B
obligate aerobes.
C
facultative anaerobes.
D
aerotolerant anaerobes.
4) The overall equation for the cellular respiration of glucose is
A
C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + energy.
B
C6H12O6 + energy → 6 CO2+ 6 H2O + 6 O2.
C
5 CO2 + 6 H2O → C5H12O6 + 6 O2 + energy.
D
C5H12O6 + 6 O2 → 5 CO2 + 6 H2O + energy.
5) Oxidation is the ________, and reduction is the ________.
A
gain of oxygen . . . loss of oxygen
B
loss of electrons . . . gain of electrons
C
gain of protons . . . loss of protons
D
gain of electrons . . . loss of electrons
6) If you consume 1 g of each of the following, which will yield the most ATP?
A
fat
B
protein
C
glucose
D
starch
7) Which of the following processes produces the most ATP per molecule of glucose oxidized?
A
lactic acid fermentation
B
aerobic respiration
C
All produce approximately the same amount of ATP per molecule of glucose.
D
alcoholic fermentation
8) During cellular respiration, the energy in glucose
A
is released all at once.
B
is carried by electrons.
C
becomes stored in molecules of ammonia.
D
is used to manufacture glucose.
9) When proteins are used as a source of energy for the body, the proteins
A
are hydrolyzed to their constituent amino acids
B
are converted mainly into intermediates of glycolysis or the citric acid cycle.
C
are hydrolyzed to glucose and converted to acetyl CoA, which enters the citric acid cycle.
D
are converted into glucose molecules, which are fed into glycolysis.
10) By-products of cellular respiration include
A
FADH2 and NADH.
B
carbon dioxide and water.
C
oxygen and heat.
D
NADH and ATP.
11) During cellular respiration, NADH
A
is chemically converted into ATP.
B
is reduced to form NAD+.
C
is the final electron acceptor.
D
delivers its electron load to the first electron carrier molecule.
12) In fermentation, ________ is ________.
A
NADH . . . oxidized
B
ethanol . . . oxidized
C
NADH . . . reduced
D
NAD+ . . . oxidized
13) The mitochondrial cristae are an adaptation that
A
helps mitochondria divide during times of greatest cellular respiration.
B
carefully encloses the DNA housed within the mitochondrial matrix.
C
increases the space for more copies of the electron transport chain and ATP synthase complexes.
D
permits the expansion of mitochondria as oxygen accumulates in the mitochondrial matrix.
14) Which of the following options lists the stages in cellular respiration in the correct order?
A
glycolysis, the citric acid cycle, and oxidative phosphorylation
B
glycolysis, oxidative phosphorylation, and the citric acid cycle
C
the citric acid cycle, oxidative phosphorylation, and glycolysis
D
oxidative phosphorylation, glycolysis, and the citric acid cycle
15) During which of the following phases of cellular respiration does substrate-level phosphorylation take place?
A
oxidative phosphorylation
B
the citric acid cycle
C
glycolysis and the citric acid cycle
D
glycolysis
16) Pyruvate
A
is the molecule that starts the citric acid cycle.
B
is a six-carbon molecule.
C
is the end product of oxidative phosphorylation.
D
forms at the end of glycolysis.
17) Which of the following metabolic pathways is common in aerobic and anaerobic metabolism?
A
glycolysis
B
electron transport chain
C
oxidative phosphorylation
D
the citric acid cycle
18) Yeasts can produce ATP by either fermentation or oxidative phosphorylation; thus, they are
A
facultative anaerobes.
B
facultative aerobes.
C
strict anaerobes.
D
strict aerobes.
19) Humans use the calories they obtain from ________ as their source of energy.
A
water
B
food
C
sunlight
D
minerals
20) During redox reactions,
A
protons from one molecule replace the electrons lost from another molecule.
B
the loss of electrons from one substance is called reduction.
C
a substance that gains electrons is said to be oxidized.
D
electrons are lost from one substance and added to another substance.
*select an answer for all questions
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