Consider the contribution of NADH and FADH2. How many of the 38 total ATP molecules produced in cellular respiration come from the citric acid cycle?
a. 20
b. 22
c. 28
d. 32
Ans: b. 22
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Evidence suggesting that snakes evolved from ancestral lizards includes the fact that _____
a. some give live birth to their young b. some have bony remnants of hind limbs c. all have internal fertilization d. all have amniotic eggs e. some actually have legs
Feeding in sponges is dependent on
a. collar cells. b. pores. c. water flow. d. pores and water flow. e. all of the above.
The chemical mediator that causes prolonged bronchospasm, vascular permeability, and mucus secretion of asthmatic patients is ________.
A. platelet-activating factor B. prostaglandin C. histamine D. leukotriene E. serotonin
List the eye structures that light passes through as it travels from outside the body to the retina.
What will be an ideal response?