Which vitamin is a required as a coenzyme for transamination?
A. B3
B. B9
C. B12
D. B6
Answer: D
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During periods of fasting, why is fat said to have a protein-sparing effect?
A. The body must have an adequate fat intake in order to absorb and metabolize proteins. B. The body does not oxidize its proteins unless it has consumed its fat reserves first. C. The body must have an adequate protein intake in order to absorb and metabolize fats. D. The body metabolizes fats and proteins through the same metabolic pathways. E. The body oxidizes its spare protein before it depletes its fat reserves.
Most of the joints in the appendicular skeleton are _____ joints
A. fibrous B. immovable C. synovial D. cartilaginous E. inarticulate
The ________ of the small intestine is/are similar to the ________ of the stomach
A) rugae; Peyer patches B) pyloric sphincter; ileocecal valve C) goblet cells; parietal cells D) intestinal crypts; gastric pits E) villi; pyloric glands
In response to excessive amounts of hormone, a target cell may reduce its number of receptors for that hormone. This is an example of
A. increasing specificity to a hormone. B. up-regulation. C. down-regulation. D. increasing sensitivity to a hormone.