The major site of cell membrane synthesis is the

A. plasma membrane.
B. endoplasmic reticulum.
C. nucleus.
D. lysosome.

Answer: B

Biology & Microbiology

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Which of the following reactions prevails in red blood cells traveling through alveolar capillaries? (Hb = hemoglobin)

A) Hb + 4 O2 ? Hb(O2)4 B) Hb(O2)4 ? Hb + 4 O2 C) CO2 + H2O ? H2CO3 D) H2CO3 ? H+ + HCO3- E) Hb + 4 CO2 ? Hb(CO2)4

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Biology & Microbiology

World human population in 2009 is approximately

A. 670 million. B. 1.8 bilion. C. 4.6 billion. D. 6.7 billion. E. 10 billion.

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The ATP made during glycolysis is generated by

A. substrate-level phosphorylation. B. oxidation of NADH to NAD+ C. photophosphorylation. D. chemiosmosis. E. electron transport.

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How long is a typical C-H bond?

a. 0.580 nm b. 0.107 nm c. 0.154 nm d. 0.214 nm

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Biology & Microbiology