The centromere divides during
A. metaphase II.
B. telophase II.
C. anaphase II.
D. prophase II.
C. anaphase II.
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Why is ATP an important molecule in metabolism?
A) Its hydrolysis provides an input of free energy for exergonic reactions. B) It provides energy coupling between exergonic and endergonic reactions. C) Its terminal phosphate group contains a strong covalent bond that, when hydrolyzed, releases free energy. D) Its terminal phosphate bond has higher energy than the other two phosphate bonds. E) It is one of the four building blocks for DNA synthesis.
Which two nucleotides also serve as transporters of chemical energy?
a. ATP and GTP b. ATP and CTP c. ATP and TTP d. CTP and TTP e. CTP and UTP
How does the binding of a regulatory molecule to the allosteric site affect the activity of an enzyme? (Check all that apply.)
A. It may change the maximum velocity of the enzyme. B. It may decrease the activity of the enzyme. C. It may increase the activity of the enzyme. D. It may change the affinity of the enzyme for its substrate. E. It causes the enzyme to denature and become inactive. F. It may cause the active site to disappear altogether. G. It may change the shape of the enzyme.
It is appropriate to use the coarse focus adjustment when on the _____ objective(s):
A. 4x B. 10x C. 40x D. a-b E. a-c