All of the following aid in the protists' movement except:
A. Flagella
B. Cilia
C. Pseudopod
D. Endospore
Ans: D. Endospore
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Which of the following represents the use of osmotic pressure as a microbial control method?
A. Salting of meat B. Bleaching a kitchen counter C. Exposing dental equipment to UV light D. Rinsing of a cut with Betadine
The term "precursor metabolite" refers to molecules that
A. activate cell components. B. are used in biosynthesis. C. result from cell activities. D. are present but inactive.
Members of the genus Pseudomonas ________.
A. are obligate intracellular parasites B. perform anaerobic photosynthesis C. are aerobes that mineralize a wide variety of organic compounds D. form cysts when starved for nutrients
Answer the following questions true (T) or false (F)
1. Cholera toxin is composed of five A subunits and one B subunit. 2. The small intestine is the site of the majority of nutrient digestion and absorption. 3. Complete recovery from hepatitis A infection occurs 99% of the time.