Deck 9: Exercise, Nutrition and Immune Function

Question 1

Which of the following micronutrients would impair immunity if they were deficient in the diet?

A) Iron
B) Vitamin D
C) Protein
D) All of the above
E) None of the above

Answer 1

D

Question 2

Nutrient deficiencies could affect immune function by direct and/or indirect means.

Answer 2

True

Question 3

Why does carbohydrate feeding during exercise attenuate some aspects of exercise-induced immunodepression?

A) Because it restores glycogen, which is an important fuel for leukocytes
B) Because it maintains blood glucose and reduces stress-hormone secretion
C) Because it increases glucose availability for the process of phagocytosis
D) Because glucose acts as an antimicrobial agent
E) Because antigen presentation is inhibited by elevated levels of glucose

Answer 3

B

Question 4

Which of the following vitamins can be synthesised from the action of sunlight on the skin?

A) Vitamin C
B) Vitamin D
C) Vitamin E
D) Folic acid
E) Vitamin B12

Question 5

Echinacea is a plant-derived flavonoid compound that stimulates acquired immune function.

Question 6

Which of the following is a strain of live bacteria that can influence immune function when ingested regularly?

A) Xenobiotic
B) Prebiotic
C) Probiotic
D) β-glucan
E) Colostrum

Question 7

Which of the following amino acids is important for lymphocyte proliferation and has been shown to decrease in concentration in blood after prolonged exercise?

A) Alanine
B) Glycine
C) Glutamate
D) Glutamine
E) Tryptophan

Question 8

Regular ingestion of high doses of some antioxidant vitamins can attenuate cortisol responses to exercise.

Question 9

Decreases in soluble immune factors, such as immunoglobulins, complement proteins and lysozyme, can occur with inadequate nutrition.

Question 10

Ingestion of excessive amounts of some minerals, such as iron, does not impair any aspect of immune function.