The special proteins that drive chemical reactions are:?
A) enzymes.
B) antibodies.
C) collagen.
D) hormones.
E) DNA.
A
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How long can fresh eggs (in the shell) be safely kept in a refrigerator?
a. 3-5 weeks b. 6 months c. at least 1 year d. 1-2 weeks
The biological value of a food protein is a measure of ________.
A. the total amount of nitrogen in the blood B. how much of the food one eats C. how closely it meets amino acid needs D. the weight gained by a growing rat after eating the food protein for 10 days
Ice Cream A carton of ice cream contains the following list of ingredients: milkfat and nonfat milk, sorbitol, pecans, cellulose, butter, caramel color, citric acid, aspartame, carrageenan. Refer to the "Ice Cream" box above. How many alternative sweeteners are contained in this product?
a. 1 b. 2 c. 3 d. 4 e. 5
The kidney structure that is responsible for filtering the blood is the:
a. loop of Henle. b. proximal tubule. c. distal tubule. d. glomerulus.