The maintenance of the volume and
composition of body fluids is the primary
responsibility of which system?
a. integumentary
b. immune
c. digestive
d. urinary
e. circulatory
D
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What is a required input for the light-independent reactions?
a. NADPH b. phosphoglyceric acid (PGA) c. phosphoglyceraldehyde (PGAL) d. glucose e. ribulose bisphosphate
In what way does prokaryotic fission resemble eukaryotic mitosis?
A. Mechanism of chromosome movement B. Production of genetically identical descendant cells C. Chromosome attachment D. Production of a cytoskeletal framework for separating chromosomes E. Horizontal gene transfers
During acquired immunity, which of the following cells secretes antibodies?
a) eosinophil b) mast cells c) plasma cells d) B-cells
The self-splicing of Group I introns
a. requires energy from the hydrolysis of ATP. b. gains energy from exergonic reactions involving inorganic compounds. c. occurs in a series of transesterifications that require no hydrolysis for energy. d. requires energy from the hydrolysis of GTP. e. gains energy directly from an electron transport chain.