All of the following are found in saliva, EXCEPT:
A) pepsin
B) bicarbonate
C) mucin
D) salivary amylase
Answer: A) pepsin
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After suffering a blow to the back of the head, Phil loses his vision. The blow probably caused damage to the
A) frontal lobe. B) postcentral gyrus. C) temporal lobe. D) limbic system. E) occipital lobe.
Which of the following is true regarding the difference between the mucosa of the small and large intestines?
A. The small intestine has deeper intestinal crypts than the large intestine. B. The small intestine has simple columnar epithelium and the large intestine does not. C. They both have villi, but only the small intestine has microvilli. D. Intestinal crypts are only found in the large intestine. E. The large intestine has larger circular folds than the small intestine.
________ is a molecular "ferry" that brings amino acids to the ribosome to build a protein.
A) DNA B) mRNA C) rRNA D) t-RNA
Where are creatinine, ammonium ions, small amounts of urea, and drugs such as penicillin typically secreted?
A) collecting duct B) distal tubule C) proximal tubule D) ascending limb of the nephron loop (loop of Henle)