Sulfonamides and other drugs that inhibit folic acid synthesis have a high therapeutic index because
A. humans synthesize folic acid by a process that is not sensitive to sulfonamides.
B. humans do not use folic acid.
C. humans do not synthesize folic acid but obtain it in their diets.
D. None of these are correct.
Answer: C
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The infectious agent(s) that may arise in a wound from a human bite is/are
A. Escherichia coli. B. Bacteroides. C. Actinomyces israelii. D. Staphylococcus aureus. E. Bacteroides AND Staphylococcus aureus.
When Seymour and colleagues measured the temperature of Philodendron flowers, what hypothesis were they testing?
A. Does generating heat decrease the metabolism of Philodendron? B. Does heat increase the rate of photosynthesis by Philodendron? C. Is heat being used by Philodendron to attract pollinators? D. Does generating heat increase the metabolism of Philodendron? E. Is heat being used by Philodendron increase the rate of pollen production?
Which of the following is NOT found in
fermentation?
a. NADH b. ATP c. pyruvate d. oxygen e. glucose
Most of the eukaryotic genomes described in the text have more than ________
A) 50 chromosomes B) 50,000 genes C) ten million genes D) 100,000 genes E) a million base pairs