ACBN Trivia 2 — Questions and Answers
Question 1: Which vitamin is sometimes called the 'sunshine vitamin' because the body synthesizes it upon exposure to UV-B radiation?
- Vitamin A
- Vitamin C
- Vitamin D (Correct answer)
- Vitamin E
Correct answer: Vitamin D
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?
- Micronutrients but low energy
- Energy but low in nutrients (Correct answer)
- Fiber and complex carbohydrates
- Complete proteins
Correct answer: Energy but low in nutrients
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?
- Eicosapentaenoic acid (EPA)
- Docosahexaenoic acid (DHA)
- Alpha-linolenic acid (ALA) (Correct answer)
- Arachidonic acid (AA)
Correct answer: Alpha-linolenic acid (ALA)
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?
- 30–40%
- 45–55%
- 55–65% (Correct answer)
- 70–80%
Correct answer: 55–65%
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?
- Magnesium
- Phosphorus
- Calcium (Correct answer)
- Fluoride
Correct answer: Calcium
Calcium is the most abundant mineral in the body and is the primary structural component of both tooth enamel (as hydroxyapatite) and bone.
Question 6: A client consuming 2,000 kcal/day should aim for how many grams of total fat based on the AMDR of 20–35% of calories?
- 22–39 g
- 44–78 g (Correct answer)
- 56–97 g
- 100–140 g
Correct answer: 44–78 g
At 9 kcal/g, 20–35% of 2,000 kcal = 400–700 kcal from fat ÷ 9 = approximately 44–78 grams per day.
Question 7: Which B vitamin acts as a coenzyme in over 100 enzyme reactions and is critical for amino acid metabolism?
- Thiamin (B1)
- Riboflavin (B2)
- Pyridoxine (B6) (Correct answer)
- Cobalamin (B12)
Correct answer: Pyridoxine (B6)
Vitamin B6 (pyridoxine) is required as a coenzyme for transamination and other amino acid metabolism reactions.
ACBN Trivia 2
Which vitamin is sometimes called the 'sunshine vitamin' because the body synthesizes it upon exposure to UV-B radiation?