Sulfonamides are similar in structure to

A. DNA gyrases.
B. LPS.
C. ribosomes.
D. PABA.


D

Biology & Microbiology

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The birth control pill is a mixture of synthetic

a. testosterone and estrogens. b. progesterone and estrogens. c. LH and FSH. d. LH and estrogens. e. compounds of all of these.

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Energy is taken in energy carriers from glycolysis and the Kreb's cycle to the electron transport chain by which molecule?

A.) H2O B.) NADH and FADH2 C.) ATP D.) NADH

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B cells are more effective than macrophages in presenting antigens to activate T cells when

A. antigen concentrations are low. B. macrophages are in short supply. C. antigen concentrations are high. D. None of the choices are correct.

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If an organism were a glucose and lactose fermenter, the LIA reaction would be:

a. K/A. b. A/K. c. A/A. d. K/K.

Biology & Microbiology