Chemotherapeutic agents that are natural products of microorganisms are most specifically referred to as ________.

A. synthetic drugs
B. antimicrobial agents
C. antibiotics
D. semisynthetic drugs


Answer: C

Biology & Microbiology

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Kidney __________ are small, tubular structures that interact with nearby capillaries to form urine. Fill in the blank(s) with the appropriate word(s)

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Photosynthesis occurs mainly in the leaf's:

a. subsidiary cells. b. bundle sheath extensions. c. palisade mesophyll. d. trichomes. e. vascular bundles

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A chemical messenger from the embryo that stimulates a seed to digest the endosperm is

A. ethylene. B. auxin. C. abscisic acid. D. cytokinin. E. gibberellin.

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During fermentation of a food product, some microorganisms create their own environment to minimize food spoilage. An example is ________, which produce(s) acidic by-products during sauerkraut production

a. Aspergillus oryzae b. Lactobacillus spp. c. Saccharomyces cerevisiae d. Zymomonas mobilis

Biology & Microbiology