The visual pigment that helps transform energy from light into a nerve impulse sent to the brain is:
A. Retinoic acid
B. Opsin
C. Retinal
D. Rhodopsin
Answer: D. Rhodopsin
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Which sugar needs no digestion and can be absorbed directly into the blood?
a. fructose b. lactose c. maltose d. sucrose e. disaccharides
Which of the following individuals is at the highest risk for stroke?
a. A 65-year-old Caucasian with family history of heart disease b. A 65-year-old obese African American with a history of hypertension c. A 55-year-old African American with family history of hypertension d. A 45-year-old Caucasian with family history of diabetes
Fat malabsorption is associated with all of these conditions except _____
a. weight loss b. essential fatty acid deficiency c. loss of sodium and potassium d. increased risk of kidney stones e. deficiency of fat soluble vitamins
What risk factor do cancers of the esophagus, breast, colon, and larynx share?
a. Low-fiber diet b. Red meat c. High-calcium diet d. Body fatness e. Alcoholic drinks