During reactions catalyzed by oxidoreductases an electron donor is
A) oxidized.
B) reduced.
C) synthesized.
D) degraded.
E) unaltered.
A
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Trace elements
A. include zinc, copper, and manganese. B. are required in large amounts. C. may be needed for enzyme function. D. are involved in maintaining pH in the cell. E. include zinc, copper, and manganese AND may be needed for enzyme function.
The reaction phosphoenolpyruvate + ADP ? pyruvate + ATP (? G = -7.5 kcal/mole)
A. is not spontaneous. B. involves the transfer of a phosphate to phosphoenolpyruvate. C. involves the transfer of energy from ATP to phosphoenolpyruvate. D. is an endergonic reaction. E. is an exergonic reaction.
Which of the following enzymes is NOT produced by the pancreas?
a. amylase b. carboxypeptidase c. lipase d. pepsin e. trypsin
Which of the following are protein foods that are complete?
a. hamburger b. beans c. corn d. rice e. more than one of these protein foods are complete