Protein study guide for midterm

Which of the following food groups (as a whole) has the least amount of protein per serving?

a. Meats

b. Dairy

c. Fruits

d. Grains

c. Fruits

The body recycles amino acids:

a. Because people don’t eat enough amino acids

b. To make essential amino acids

c. Only when it is deficient in vitamins

d. To decrease disposal of nitrogen

b. To make essential amino acids

Protein’s role in the body as a working molecule includes:

a. Cellular pumps

b. Muscle fibers

c. Ligaments and tendons

d. Scar tissue

c. Ligaments and tendons

Proteins are different from other macronutrients because their structure includes a _________

molecule.

a. Carbon

b. Hydrogen

c. Nitrogen

d. Oxygen

c. Nitrogen

The average adult needs _________ g/kg of protein per day.

a. 0.5

b. 0.8

c. 1.0

d. 1.8

b. 0.8

The basic building blocks of protein are:

a. Glucose units

b. Side chains

c. Amino acids

d. Saturated bonds

c. Amino acids

An example of a person in positive nitrogen balance is:

a. An astronaut

b. A pregnant woman

c. A child

d. A healthy college studen

c. A child

There are ___ essential amino acids and ___ non-essential amino acids

9 and 11 non

Protein can be denatured by: (circle all that apply)

a. Heat

b. Acids

c. Freezing

d. Lipoproteins

e. Bases

f. Agitation

a. Heat

b. Acids

e. Bases

f. Agitation

Which of the following foods has the highest protein digestibility score?

a. Animal proteins

b. Legumes and beans

c. Grains

d. Fruits and vegetables

a. Animal proteins

The strategy of combining two incomplete protein sources so that you can make up for the lack

of amino acids in one food is called:

a. Limiting Amino Acid

b. Vegetarianism

c. Complementary Protein

d. Mutual Supplementation

c. Complementary Protein

A _____ bond is formed between two amino acids:

a. Peptide

b. Amino acid

c. Denatured

d. Sulfur

a. Peptide

Which of the following is a protein catalyst which acts on other substances to change

them chemically?

a. Hormone

b. Antibody

c. Catalyst

d. Enzyme

d. Enzyme

The sequences of amino acids that make up a protein molecule are specified by:

a. Age

b. Sex

c. Heredity

d. Diet

c. Heredity

When amino acids are metabolized, their amine groups are stripped off and excreted by

the kidneys as:

a. Bile

b. Urea

c. Glucose

d. Hormones

b. Urea

The stomach lining is protected from the very strong acid of the stomach by:

a. Enzymes

b. A coat of mucus

c. Antibodies

d. Saliva

b. A coat of mucus

Which of the following provides amino acids which are best absorbed by the body?

a. Legumes

b. Animal proteins

c. Grains

d. Vegetables

b. Animal proteins

Which of the following food groups provides little to no protein?

a. Fruits

b. Breads

c. Vegetables

d. Milk

19. A child suffe

b. Breads

. A child suffering from protein deficiency has edema. This is an example of protein’s role

in:

a. Supporting growth and maintenance

b. Building enzymes and hormones

c. Maintaining fluid and electrolyte balance

d. Maintaining acid-base balance

c. Maintaining fluid and electrolyte balance

Which of the following accounts for the differences between different amino acids?

a. The amine group

b. The side chain

c. The acid group

d. The peptide bond

b. The side chain