The enzyme found in tears, saliva, and nasal secretions that acts to destroy bacteria is ________.
A. a lysozyme
B. an interferon
C. an antibody
D. All of these choices are correct.
Answer: A
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Calculate the net filtration pressure (NFP) with a blood hydrostatic pressure of 40 mm Hg and a blood colloid osmotic pressure of 25 mm Hg. Then determine if filtration or reabsorption occurs. NFP = ________ and results in a fluid ________
A) 15 mm Hg; filtration B) 65 mm Hg; reabsorption C) 65 mm Hg; filtration D) 15 mm Hg; reabsorption E) -15 mm Hg; filtration
Regarding the citric acid cycle, which molecule participates in a complex reaction involving NAD and coenzyme A within the mitochondrion?
A) pyruvate B) citric acid C) ATP D) oxygen E) FADH2
Which of the following is NOT true of plasma?
A. Plasma volume can change drastically. B. The color of plasma is yellow. C. Plasma is about 91% water. D. Plasma is a colloid.
Keratinized epithelium ________.
A. is a moist membrane B. allows water to diffuse through C. is a dry, mostly dead membrane D. has living cells in all layers