What structure changes the shape of the lens for far and near vision?
A) aqueous humor
B) ciliary body
C) iris
D) extrinsic eye muscles
E) none, because the lens is rigid
Answer: B
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The citric acid cycle
A) begins with the formation of a molecule of citric acid. B) directly produces most of the ATP from the catabolism of glucose. C) consumes two moles of carbon dioxide. D) contains enzymes called cytochromes. E) forms acetyl-CoA from glucose-6-phosphate.
. The key to understanding the differences and similarities in sexuality among ethnic groups in the United States is:
A. cultural context. B. opportunity for sexual activities. C. biological differences. D. the birth rate.
Which of the following proteins is the main component of thick filaments?
A) myosin B) sarcoplasm C) actin D) myofibril
Assuming all other values are normal, calculate the net filtration pressure in a patient with a drop in capsular hydrostatic pressure to 8 mmHg.
A. 50 mm Hg out B. 30 mm Hg out C. 10 mm Hg out D. 40 mm Hg out E. 20 mm Hg out