The cytokine released from macrophages that seems to play a major role in endotoxic shock is
A. macrophage factor.
B. tumor necrosis factor.
C. protein A.
D. interferon.
B.
Biology & Microbiology
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What molecule will allow some bacteria to be resistant to many penicillins?
A. Imipenem B. Aztreonam C. Synercid D. Penicillinase E. Clavulanic acid
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Which of the following moves materials against a concentration gradient?
a. active transport b. dialysis c. facilitated diffusion d. simple diffusion e. osmosis
Biology & Microbiology
The ____ contains the greatest volume of ocean water
a. oceanic province b. intertidal zone c. euphotic zone d. neritic province e. limnetic zone
Biology & Microbiology
Rotation of the ________ subunit of ATP synthase causes conformational changes in the catalytic sites that produce ATP.
A) alpha B) beta C) gamma D) F0
Biology & Microbiology