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BIOL 101 EXAM 2 (QUESTION & ANSWERS) SOLVED 2024!!
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BIOL 101 EXAM 2 (QUESTION & ANSWERS) SOLVED 2024!!
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Name: Score:50 Multiple choice questions
Term 1 of 50
14) The mitochondrial cristae are an adaptation that
helps mitochondria divide during times of greatest cellular respiration.
permits the expansion of mitochondria as oxygen accumulates in the mitochondrial matrix.
carefully encloses the DNA housed within the mitochondrial matrix.
increases the space for more copies of the electron transport chain and ATP synthase
complexes.
None of the choices are correct.
Term 2 of 50
8) Facilitated diffusion across a biological membrane requires __________ and moves a substance
__________ its concentration gradient.
transport proteins . . . down
energy and transport proteins . . . against
transport proteins . . . against
energy . . . down
energy and transport proteins . . . down
,Term 3 of 50
5) What is the main advantage of the C4 and CAM photosynthesis strategies over the C3
strategy?
They allow the plant to fix carbon more efficiently under conditions of low atmospheric
CO2.
They make it possible for the plant to use the Calvin cycle at night and during the day.
They help the plant conserve water and synthesize glucose efficiently under hot, dry
conditions.
They allow the plant to avoid photorespiration by producing a four-carbon sugar in place
of
glucose.
They allow the plant to fix carbon more efficiently in dim or cool conditions.
Term 4 of 50
1) Which one of the following statements is false? Cellular respiration
consumes glucose.
produces carbon dioxide.
is a single chemical reaction with just one step.
produces water.
releases heat.
, Term 5 of 50
12) In the electron transport chain, the final electron acceptor is
ADP.
ATP.
an oxygen atom.
a molecule of carbon dioxide.
a molecule of water.
Term 6 of 50
43) Living systems
violate the first law of thermodynamics.
are examples of a closed system.
decrease their entropy while increasing the entropy of the universe.
violate the second law of thermodynamics.
None of the choices are correct.
Term 7 of 50
47) Which of the following statements about the energy yield of aerobic respiration is false?
Each FADH2 molecule yields 2 ATP molecules and each NADH molecule generates 3 ATP
molecules.
Most of the ATP derived during aerobic respiration results from oxidative phosphorylation.
Glycolysis and the "grooming" of pyruvate together produce more NADH per glucose
molecule than does the citric acid cycle.
Oxidative phosphorylation resulting from one glucose molecule may yield 32-34 ATP
molecules.
Less than 50% of the chemical energy available in glucose is converted to ATP energy.
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