Why is iron not well absorbed from the intestinal tract?
a. Most people consume too much iron on a daily basis.
b. The physiological roles involving iron are limited and are of minor importance.
c. Over-absorption of iron has potentially harmful physiological effects.
d. Most people don't have the enzymes needed to absorb iron, especially as they age.
c
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____, dipeptides, and tripeptides are absorbed at the mucosal cells of the small intestine
a. Polyglycerides b. Polypeptides c. Amino acids d. Proteins
High-density lipoprotein cholesterol returns cholesterol to the small intestine where it can be used to make bile acids or excreted in bile fluid.
Indicate whether the statement is true or false.
Which chronic disease is called the "silent killer"?
A. hypertension B. diabetes C. coronary heart disease D. osteoporosis
What is the inactive form of pepsin?
a. Pepsinostagnant b. Trypsinogen c. Pepsinox d. Pepsinogen