$0.8 \times 70 = 56$ grams per day

$0.8 \times 60 \times 1.5 = 72$ grams

Question 1

Which of the following best describes the primary structure of a protein?

Accepted Answer

A linear sequence of amino acids linked by peptide bonds

Question 2

A patient with a diet high in animal protein and low in carbohydrates is at increased risk for which of the following conditions?

Accepted Answer

Kidney stones

Question 3

Which of the following is a complete protein source?

Accepted Answer

Quinoa

Question 4

What is the recommended dietary allowance (RDA) for protein for a healthy adult weighing 70 kg?

Accepted Answer

$0.8 	imes 70 = 56$ grams per day

Question 5

Which enzyme is responsible for breaking polypeptides into shorter chains in the stomach?

Accepted Answer

Pepsin

Question 6

A vegetarian who consumes dairy but avoids eggs, meat, fish, and poultry is classified as which type of vegetarian?

Accepted Answer

Lacto-vegetarian

Question 7

Which of the following is a potential risk of a poorly planned vegan diet?

Accepted Answer

Low intake of vitamin B12

Question 8

What is the main reason why complementary proteins are important in a vegetarian diet?

Accepted Answer

They provide all essential amino acids when combined

Question 9

Which of the following best explains why protein denaturation can be harmful to its function?

Accepted Answer

It alters the protein's shape, affecting its function

Question 10

A child presents with edema, a distended abdomen, and brittle hair. Which nutritional disorder is most likely?

Accepted Answer

Kwashiorkor

Question 11

Which of the following is NOT a function of proteins in the body?

Accepted Answer

Storing excess amino acids for future use

Question 12

If a person consumes excess dietary protein, what happens to the surplus amino acids?

Accepted Answer

They are converted to energy, glucose, or fat

Question 13

Which of the following combinations provides complementary proteins?

Accepted Answer

Rice and beans

Question 14

A patient with severe calorie deficiency, muscle wasting, and a frail appearance is most likely suffering from:

Accepted Answer

Marasmus

Question 15

Which of the following statements about essential amino acids is correct?

Accepted Answer

They must be obtained from the diet

Question 16

Which process describes the removal of an amino group from an amino acid for energy production?

Accepted Answer

Deamination

Question 17

A competitive endurance athlete weighing 60 kg is recommended to consume 50% more protein than the RDA. How much protein should they consume daily?

Accepted Answer

$0.8 	imes 60 	imes 1.5 = 72$ grams

Question 18

Which of the following is a risk associated with excessive protein intake and low calcium consumption?

Accepted Answer

Osteoporosis

Question 19

Which of the following best describes the role of proteins in acid-base balance?

Accepted Answer

They act as buffers to maintain pH within a narrow range

Question 20

Which of the following is a likely consequence of protein-energy malnutrition (PEM) in children?

Accepted Answer

Compromised GI tract and increased infection risk

Proteins: Structure, Function, Digestion, and Health Implications

Study Guide - Practice Questions