BIO 189A Midterm Exam – Questions With Clear
Solutions
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Terms in this set (78)
Which of the following describes the It represents the first stage in the chemical
process of glycolysis? oxidation of glucose by a cell.
The free energy for the oxidation of Most of the free energy available from the
glucose to CO2 and water is -686 oxidation of glucose remains in pyruvate, one of
kcal/mol and the free energy for the the products of glycolysis.
reduction of NAD+ to NADH is +53
kcal/mol. Why are only two
molecules of NADH formed during
glycolysis when it appears that as
many as a dozen could be formed?
A glucose molecule is completely It is stored in NADH and FADH2
broken down to carbon dioxide and
water in glycolysis and the citric acid
cycle, but together these two
processes yield only a few molecules
of ATP. What happened to most of
the energy that the cell obtains from
the oxidation of glucose?
What fraction of the carbon dioxide 2/3
exhaled by animals is generated by
the reactions of the citric acid cycle,
if glucose is the sole energy source?
, Starting with citrate, which of the 3 ATP, 6 CO2, 9 NADH, and 3 FADH2
following combinations of products
would result from three acetyl CoA
molecules entering the citric acid
cycle (see the figure)?
Which of the following statements The chemiosmotic synthesis of ATP requires that
about the chemiosmotic synthesis of the electron transport in the inner mitochondrial
ATP is correct? membrane be coupled to proton transport across
the same membrane.
Approximately how many molecules 60-64
of ATP are produced from the
complete oxidation of two
molecules of glucose (C6H12O6) in
aerobic cellular respiration?
The ATP made during fermentation is substrate-level phosphorylation
generated by which of the
following?
In alcohol fermentation, NAD+ is reduction of acetaldehyde to ethanol (ethyl
regenerated from NADH by alcohol).
Which kind of metabolic poison an agent that closely mimics the structure of
would most directly interfere with glucose but is not metabolized
glycolysis?
The richest source of stored fat in adipose tissue.
chemical energy in the body is
Solutions
Save
Terms in this set (78)
Which of the following describes the It represents the first stage in the chemical
process of glycolysis? oxidation of glucose by a cell.
The free energy for the oxidation of Most of the free energy available from the
glucose to CO2 and water is -686 oxidation of glucose remains in pyruvate, one of
kcal/mol and the free energy for the the products of glycolysis.
reduction of NAD+ to NADH is +53
kcal/mol. Why are only two
molecules of NADH formed during
glycolysis when it appears that as
many as a dozen could be formed?
A glucose molecule is completely It is stored in NADH and FADH2
broken down to carbon dioxide and
water in glycolysis and the citric acid
cycle, but together these two
processes yield only a few molecules
of ATP. What happened to most of
the energy that the cell obtains from
the oxidation of glucose?
What fraction of the carbon dioxide 2/3
exhaled by animals is generated by
the reactions of the citric acid cycle,
if glucose is the sole energy source?
, Starting with citrate, which of the 3 ATP, 6 CO2, 9 NADH, and 3 FADH2
following combinations of products
would result from three acetyl CoA
molecules entering the citric acid
cycle (see the figure)?
Which of the following statements The chemiosmotic synthesis of ATP requires that
about the chemiosmotic synthesis of the electron transport in the inner mitochondrial
ATP is correct? membrane be coupled to proton transport across
the same membrane.
Approximately how many molecules 60-64
of ATP are produced from the
complete oxidation of two
molecules of glucose (C6H12O6) in
aerobic cellular respiration?
The ATP made during fermentation is substrate-level phosphorylation
generated by which of the
following?
In alcohol fermentation, NAD+ is reduction of acetaldehyde to ethanol (ethyl
regenerated from NADH by alcohol).
Which kind of metabolic poison an agent that closely mimics the structure of
would most directly interfere with glucose but is not metabolized
glycolysis?
The richest source of stored fat in adipose tissue.
chemical energy in the body is
