ACBN Trivia 2

Question 1

Which vitamin is sometimes called the 'sunshine vitamin' because the body synthesizes it upon exposure to UV-B radiation?

Accepted Answer

Vitamin D

Answer

The skin converts 7-dehydrocholesterol to vitamin D3 when exposed to UV-B sunlight, earning it the nickname 'sunshine vitamin.'

Question 2

The term 'empty calories' most accurately describes foods that are high in which of the following?

Accepted Answer

Energy but low in nutrients

Answer

Empty-calorie foods provide significant energy (calories) but contribute little to no vitamins, minerals, or other essential nutrients.

Question 3

Which fatty acid is classified as an omega-3 and is found abundantly in flaxseeds?

Accepted Answer

Alpha-linolenic acid (ALA)

Answer

Alpha-linolenic acid (ALA) is the plant-based omega-3 found in flaxseeds, chia seeds, and walnuts, and is an essential fatty acid.

Question 4

What percentage of the human body's weight is typically composed of water in a healthy adult?

Accepted Answer

55–65%

Answer

In a healthy adult, water accounts for approximately 55–65% of body weight, though this varies by age, sex, and body composition.

Question 5

Which mineral is the primary component of tooth enamel and bone mineral?

Accepted Answer

Calcium

Answer

Calcium is the most abundant mineral in the body and is the primary structural component of both tooth enamel (as hydroxyapatite) and bone.

ACBN - Nutritionist Exam Practice Test