How do spheroplasts and protosplasts differ?
A. Spheroplasts retain the peptidoglycan but protoplasts do not.
B. Spheroplasts retain their outer membrane but protoplasts do not.
C. Spheroplasts form from cocci and protoplasts form from bacilli.
D. There is no difference; these terms are synonyms.
Answer: B
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All of the following are appropriate strategies for overcoming drug resistance in bacteria except
A. decreasing the use of antibiotics in agriculture. B. prudent use of antibiotics when treating viral infections. C. heightened infection control in health care facilities. D. patient compliance with dosage instructions when taking antibiotics.
Regarding syphilis, which one of the following is most accurate?
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In yolk-rich eggs, cytoplasmic localization of the yolk results in which of the following?
A. Yolk proteins concentrated at the animal pole B. More cuts in the yolky part C. Genetic material confined to the nucleus D. Fewer cuts during cleavage in the vegetal pole E. Reduced cytoplasm from the sperm
What would form open channels that directly link the cytoplasms of adjacent cells?
a. gap junction b. adhering junction c. tight junction d. microvillus e. merocrine