Chapter 6 Test Review Question Preview (ID: 35094)
Study Review For Chapter 6 Test.
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As a result of glycolysis there is a net gain of ________ ATPs.
a) 2
b) 0
c) 1
d) 4
How do cells capture the energy released by cellular respiration?
a) They store it in molecules of carbon dioxide.
b) They produce ATP.
c) The energy is coupled to oxygen.
d) They produce glucose.
Bacteria that are unable to survive in the presence of oxygen are called
a) aerotolerant anaerobes.
b) obligate aerobes.
c) obligate anaerobes.
d) facultative anaerobes.
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) C5H12O6 + 6 O2 → 5 CO2 + 6 H2O + energy.
d) 5 CO2 + 6 H2O → C5H12O6 + 6 O2 + energy.
Oxidation is the ________, and reduction is the ________.
a) gain of electrons . . . loss of electrons
b) gain of protons . . . loss of protons
c) gain of oxygen . . . loss of oxygen
d) loss of electrons . . . gain of electrons
If you consume 1 g of each of the following, which will yield the most ATP?
a) fat
b) starch
c) protein
d) glucose
Which of the following processes produces the most ATP per molecule of glucose oxidized?
a) lactic acid fermentation
b) All produce approximately the same amount of ATP per molecule of glucose.
c) alcoholic fermentation
d) aerobic respiration
During cellular respiration, the energy in glucose
a) is used to manufacture glucose.
b) is released all at once.
c) is carried by electrons.
d) becomes stored in molecules of ammonia.
When proteins are used as a source of energy for the body, the proteins
a) are converted mainly into intermediates of glycolysis or the citric acid cycle.
b) are hydrolyzed to their constituent amino acids
c) are converted into glucose molecules, which are fed into glycolysis.
d) are hydrolyzed to glucose and converted to acetyl CoA, which enters the citric acid cycle.
By-products of cellular respiration include
a) oxygen and heat.
b) NADH and ATP.
c) FADH2 and NADH.
d) carbon dioxide and water.
During cellular respiration, NADH
a) is chemically converted into ATP.
b) is the final electron acceptor.
c) is reduced to form NAD+.
d) delivers its electron load to the first electron carrier molecule.
In fermentation, ________ is ________.
a) NAD+ . . . oxidized
b) NADH . . . oxidized
c) ethanol . . . oxidized
d) NADH . . . reduced
The mitochondrial cristae are an adaptation that
a) increases the space for more copies of the electron transport chain and ATP synthase complexes.
b) carefully encloses the DNA housed within the mitochondrial matrix.
c) permits the expansion of mitochondria as oxygen accumulates in the mitochondrial matrix.
d) helps mitochondria divide during times of greatest cellular respiration.
Which of the following options lists the stages in cellular respiration in the correct order?
a) glycolysis, oxidative phosphorylation, and the citric acid cycle
b) the citric acid cycle, oxidative phosphorylation, and glycolysis
c) oxidative phosphorylation, glycolysis, and the citric acid cycle
d) glycolysis, the citric acid cycle, and oxidative phosphorylation
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
d) glycolysis and the citric acid cycle
Pyruvate
a) is the molecule that starts the citric acid cycle.
b) is the end product of oxidative phosphorylation.
c) forms at the end of glycolysis.
d) is a six-carbon molecule.
Which of the following metabolic pathways is common in aerobic and anaerobic metabolism?
a) glycolysis
b) electron transport chain
c) the citric acid cycle
d) oxidative phosphorylation
Yeasts can produce ATP by either fermentation or oxidative phosphorylation; thus, they are
a) facultative aerobes.
b) facultative anaerobes.
c) strict aerobes.
d) strict anaerobes.
Humans use the calories they obtain from ________ as their source of energy.
a) minerals
b) water
c) food
d) sunlight
During redox reactions,
a) the loss of electrons from one substance is called reduction.
b) protons from one molecule replace the electrons lost from another molecule.
c) a substance that gains electrons is said to be oxidized.
d) electrons are lost from one substance and added to another substance.
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