In the absence of oxygen, suppose a single yeast cell undergoes fermentation and uses 100 molecules of glucose. How many molecules of ATP will be generated?

A) 100 B) 200 C) 300 D) 400 E) 36


B

Biology & Microbiology

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Stomach emptying is controlled by ____ moving down the stomach wall

a. gastrin b. waves of peristalsis c. spinal cord reflexes d. HCl secretions e. rugae

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In general, fungi derive nutrients through

A) photosynthesis. B) engulfing bacteria. C) decomposing and digesting organic substances. D) parasitism.

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Terrestrial organisms lose water through evaporation. In what ecosystem might an entomologist find a good study organism to examine the prevention of water loss?

A) wet rain forest B) desert C) prairie D) chaparral

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Which of the following statements is NOT a defining characteristic of adaptive immunity?

A. Self/nonself recognition B. Tailored to specific antigens C. Ability to produce diverse antigen receptors D. Memory allows a fast and strong secondary response E. Fast-acting initial response mediated by complement

Biology & Microbiology