Biology 1401 Chapter 7 How Cells Harvest Energy

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1.  The decarboxylation of pyruvate produces all of the following except
A.
B.
C.
D.
2.  Select the correct sequence concerning glucose catabolism.
A.
B.
C.
D.
3.  In muscle cells, fermentation produces not alcohol but
A.
B.
C.
D.
E.
4.  A single glucose molecule can drive the Krebs cycle
A.
B.
C.
D.
E.
5.  In the cyclic reaction sequence called the Krebs cycle, the following chemical events take place except
A.
B.
C.
D.
E.
6.  The coenzyme electron carriers produced in the Krebs cycle are
A.
B.
C.
D.
E.
7.  Regardless of the electron or hydrogen acceptor used, one of the products of fermentation is always
A.
B.
C.
D.
E.
8.  Since membranes are relatively impermeable to ions, most of the protons re-enter the matrix of mitochondria by passing through special channels in the inner mitochondrial membrane. Because of the inward flow of protons these channels allow the synthesis of
A.
B.
C.
D.
E.
9.  In the absence of oxygen, hydrogen atoms generated by glycolysis are donated to organic molecules in a process called
A.
B.
C.
D.
E.
10.  The enzymes of the Krebs cycle are located in the
A.
B.
C.
D.
E.
11.  Chemiosmotic generation of ATP is driven by
A.
B.
C.
D.
E.
12.  In eukaryotes, the glycolytic reactions take place in the
A.
B.
C.
D.
E.
13.  Which of the following statements abotu fermentation is false?
A.
B.
C.
D.
E.
14.  An electron carrier that is used in harvesting energy from glucose molecules in a series of gradual steps in the cytoplasm is
A.
B.
C.
D.
E.
15.  The decarboxylation step of oxidation of pyruvate takes place in the
A.
B.
C.
D.
E.
16.  Yeast cells under anaerobic conditions
A.
B.
C.
D.
E.
17.  The oxygen utilized in cellular respiration finally shows up as
A.
B.
C.
D.
E.
18.  The enzymes catalyzing the reactions of glycolysis are found in the
A.
B.
C.
D.
E.
19.  The first stage of cellular respiration is
A.
B.
C.
D.
E.
20.  A molecule that stores energy by linking charged phosphate groups each other is called
A.
B.
C.
D.
E.
21.  The reaction, C(6)H(12)O(6) + 6O(2) = 6 CO(2) + 6 H(2)O, when it occurs in living cells is known as
A.
B.
C.
D.
E.
22.  The end-product of glycolysis is
A.
B.
C.
D.
E.
23.  In oxidative respiration, energy is harvested from glucose molecules in a sequence of four major pathways. Which of the following is not one of these four pathways?
A.
B.
C.
D.
E.
24.  During respiration the final acceptor of the hydrogen atoms is
A.
B.
C.
D.
E.
25.  A process common to all living organisms, aerobic and anaerobic, is
A.
B.
C.
D.
E.
26.  All of the following are the end products of glycolysis except
A.
B.
C.
D.
E.
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