The carbon dioxide acceptor in the Calvin-
Benson cycle of photosynthesis is
a. phosphoglycerate (PGA).
b. ribulose bisphosphate (RuBP).
c. phosphoglyceraldehyde (PGAL).
d. glucose.
e. phosphoenolpyruvate.
B
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Gram stain is used to distinguish between different
a. bacteria. b. protistans. c. dinoflagellates. d. all of the above.
In obesity studies in mice, the binding of leptin activates the leptin receptor and initiates changes in ____ in the
hypothalamus. a. nucleotide sequences b. cell membranes c. mitochondria d. fat storage e. gene expression
A replicated DNA molecule contains one new strand and one old strand
a. True b. False
The process by which an amoeba engulfs a food particle is termed
a. osmosis b. diffusion c. receptor-mediated endocytosis d. pinocytosis e. phagocytosis