Chapter 11 Concept Checks

Question 1

Which is a task of retinoic acid?
a. Supports reproduction
b. Is the primary transport and storage form of vitamin A
c. Is active in vision
d. Regulates cell differentiation, growth, and embryonic development

Answer 1

d. Regulates cell differentiation, growth, and embryonic development

Question 2

Vitamin A supplementation and food fortification cut the risk of dying from which disease in half among children?
a. Measles
b. Whooping cough
c. Tuberculosis
d. Meningitis

Answer 2

a. Measles

Question 3

Which is the biologically active hormone, sometimes called active vitamin D?
a. Ergocalciferol
b. Cholecalciferol
c. Calcitriol
d. Calcidiol

Answer 3

c. Calcitriol

Question 4

Which symptom can develop as a result of vitamin E deficiency?
a. Night blindness
b. Bone weakness
c. Red blood cell breakage
d. Rough, scaly skin

Answer 4

c. Red blood cell breakage

Question 5

Sienna is to start taking Warfarin, a blood thinner. Which piece of dietary advice is most appropriate for her?
a. It is important to avoid all vitamin K-containing foods.
b. If she eats a salad every day, she should continue to eat a salad every day.
c. Start to drink a glass of milk every day.
d. Consume plenty of vitamin E-rich foods such as plant oils, nuts, and seeds.

Answer 5

b. If she eats a salad every day, she should continue to eat a salad every day.

Question 6

Which deficiency often occurs concurrent with vitamin A deficiency?
a. Zinc
b. Iron
c. Copper
d. Magnesium

Answer 6

b. Iron