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
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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
In general, fungi derive nutrients through
A) photosynthesis. B) engulfing bacteria. C) decomposing and digesting organic substances. D) parasitism.
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
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