Answer to Question 1
D
The secondary structure of proteins refers to the straight, folded, or coiled shape of the amino acid chain. The combination of polypeptide chains is the quaternary structure. The sequence of amino acids in the chain is the primary structure. The strong bonds between loops of the chain is the tertiary structure.
Answer to Question 2
1
Rationale: The current recommendation for alcohol intake is one drink per day for small men and women, whereas two drinks would be considered drinking in moderation for larger men. Moderate intake of alcohol can have some health benefits, but in excess has been linked to cancers, hypertension, depression, insomnia, and disorders of the gastrointestinal tract. Wine contains about 125 calories per 5-oz glass.