Cells that are deficient in vitamin A become hard and dry because they produce _______, a protein.
A. Retinal
B. Opsin
C. Keratin
D. Xerophthin
Ans: C. Keratin
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In Western societies, diverticula occur most often in which location?
A) the sigmoid colon B) at the ileocecal valve C) the transverse colon D) the ascending colon
Bacterial overgrowth in the stomach and small intestine can result in:
a. a deficiency of fat-soluble vitamins. b. weight gain. c. vitamin B6 deficiency. d. abnormal glucose tolerance.
Possible hazards of taking fish oil supplements include all except:
a. contamination with pesticides and mercury. b. fat-soluble vitamin toxicity as with vitamins B and C. c. inaccurate supplement label reporting of amount of omega-3 fatty acids contained in the product. d. industrial contaminants that accumulate in the skin and liver of fish from which supplements are produced.
Osmolality is usually derived by using ____
A) equations that account for the nutrients and electrolytes B) the weights of the nutrients and solution C) an instrument called an osmometer D) an instrument called a spectrometer