Quest HW 11 - Nutrition 2

Valine and lysine are both amino acids. Structurally
how could you distinguish between them?
1. Valine is an essential amino acid; lysine is not.
2. Valine and lysine have different side chains.
3. Lysine has an acid group; valine does not.
4. Valine has

2

Proteins are formed from amino acids
1. with the formation of a peptide bond.
2. None of these
3. by an addition type of polymerization reaction.
4. by a condensation type of polymerization reaction.
5. Two of these are correct.

5

Every amino acid has four groups attached
to a central carbon atom. What are the four groups?
1. ?NH2, HCl, side chain, ?H
2. ?NH2, ?OH, side chain, ?H
3. ?NH2, ?COOH, side chain, ?H
4. ?R group, ?COOH, side chain, ?OH

3

All nine essential amino acids can be found in meat. By employing the nutritional principle of complementarity, a vegetarian gets all nine.
What is complementarity?
1. having milk to complement every meal
2. combining foods that complement each others' es

2

Fat-soluble vitamin intake should be watched more closely than water-soluble vitamin intake because fat soluble vitamins
1. The statement is false; no special monitoring is required for fat-soluble vitamins.
2. are a source of unnecessary calories.
3. can

4

A deficiency of vitamin A may cause
1. schizophrenia.
2. cardiac arrest.
3. blindness.
4. stroke.

3

Why are vitamins added to many foods?
1. Most natural foods do not contain vitamins.
2. All of these
3. Vitamins are good flavor enhancers.
4. Vitamins are removed from foods during processing.
5. Vitamins are good artificial flavors.

4

Minerals that are recommended in amounts of 1 to 2 grams on a daily basis are
1. trace minerals.
2. microminerals.
3. macrominerals.
4. secondary minerals.

3

The metabolic hormone that is rich in iodine is
1. threonine.
2. thyroxine.
3. cephliodine.
4. iodase.

2

Iron plays a central role in
1. protein synthesis.
2. hemoglobin structure and oxygen transport.
3. nucleic acid replication.
4. bones

2

Consider the "burn off" rates
120 lb 12 Cal/min
150 lb 15 Cal/min
180 lb 18 Cal/min
200 lb 20 Cal/min
What is the minimum time a 180-pound person would need to run to "burn off" a meal consisting of a hamburger (350 Calories), 3 oz of potato chips (1 oz =

4

Consider the relationship between carbohydrate consumption and the risk of heart disease described in the text. Which statement is FALSE?
1. Replacing unsaturated fat with carbohydrates makes the cholesterol ratio less favorable.
2. Replacing unsaturated

3

The top section of the food guide pyramid contains items like
1. fat.
2. fruits.
3. vegetables.
4. breads.

1

You are eating some cookies. Each cookie contains 40 g of carbohydrates, and 10 g of fat. You eat 5 cookies. (They are really tasty cookies and you are hungry.) If your RDA is 2000 Calories, what percentage of your RDA have you just consumed?
1. 12.5%
2.

4

What is a food desert?
1. Food that is packaged to take into arid environments to aid survival.
2. A location that is experiencing an excessively long dry period so that the crops are failing.
3. Something sweet like chocolate cake, donuts or cookies.
4.

4

Butylated hydroxytoluene (BHT) is an example of an
1. antihistamine.
2. antioxidant.
3. antibiotic.
4. antiseptic.
5. antipyretic.

2

Irradiating food to preserve it
1. kills microorganisms.
2. inhibits DNA replication.
3. destroys metal ions that are essential components of the enzymes that cause food spoilage.
4. cross links proteins.
5. retards oxidation.

1