1. What is the primary function of dietary fats?
A. Provide insulation and energy storage
B. Build muscle
C. Regulate blood sugar
D. Aid calcium absorption
Answer: A. Provide insulation and energy storage
Rationale: Fats serve as a dense energy source, protect organs, and
help maintain body temperature.
2. What is the most abundant mineral in the body?
A. Magnesium
B. Calcium
C. Iron
D. Phosphorus
Answer: B. Calcium
Rationale: Calcium is the most abundant mineral, primarily stored
in bones and teeth, playing a critical role in their strength.
3. Which mineral is important for thyroid hormone
production?
A. Calcium
B. Selenium
C. Iodine
D. Magnesium
Answer: C. Iodine
Rationale: Iodine is necessary for synthesizing thyroid hormones,
which regulate metabolism and growth.
4. Which of the following is NOT a macronutrient?
A. Protein
B. Water
C. Fat
D. Vitamins
Answer: D. Vitamins
Rationale: Macronutrients provide energy (carbohydrates, proteins,
and fats), whereas vitamins are micronutrients.
, 5. Which of the following is a water-soluble vitamin?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin E
Answer: B. Vitamin C
Rationale: Water-soluble vitamins, like vitamin C and the B
vitamins, dissolve in water and are not stored in large amounts in
the body.
6. Which nutrient is most important for muscle contraction?
A. Magnesium
B. Potassium
C. Calcium
D. Sodium
Answer: C. Calcium
Rationale: Calcium plays a key role in muscle contraction by
enabling the interaction between actin and myosin filaments in
muscle cells.
7. Which vitamin deficiency causes scurvy?
A. Vitamin B12
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: B. Vitamin C
Rationale: Vitamin C is essential for collagen synthesis; its
deficiency leads to symptoms like bleeding gums and weakness,
characteristic of scurvy.
8. What is the primary benefit of consuming whole grains over
refined grains?
A. More protein
B. Higher fiber content
C. Better flavor
D. Easier digestion
Answer: B. Higher fiber content
Rationale: Whole grains retain the bran and germ, providing more
fiber, vitamins, and minerals compared to refined grains.
A. Provide insulation and energy storage
B. Build muscle
C. Regulate blood sugar
D. Aid calcium absorption
Answer: A. Provide insulation and energy storage
Rationale: Fats serve as a dense energy source, protect organs, and
help maintain body temperature.
2. What is the most abundant mineral in the body?
A. Magnesium
B. Calcium
C. Iron
D. Phosphorus
Answer: B. Calcium
Rationale: Calcium is the most abundant mineral, primarily stored
in bones and teeth, playing a critical role in their strength.
3. Which mineral is important for thyroid hormone
production?
A. Calcium
B. Selenium
C. Iodine
D. Magnesium
Answer: C. Iodine
Rationale: Iodine is necessary for synthesizing thyroid hormones,
which regulate metabolism and growth.
4. Which of the following is NOT a macronutrient?
A. Protein
B. Water
C. Fat
D. Vitamins
Answer: D. Vitamins
Rationale: Macronutrients provide energy (carbohydrates, proteins,
and fats), whereas vitamins are micronutrients.
, 5. Which of the following is a water-soluble vitamin?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin E
Answer: B. Vitamin C
Rationale: Water-soluble vitamins, like vitamin C and the B
vitamins, dissolve in water and are not stored in large amounts in
the body.
6. Which nutrient is most important for muscle contraction?
A. Magnesium
B. Potassium
C. Calcium
D. Sodium
Answer: C. Calcium
Rationale: Calcium plays a key role in muscle contraction by
enabling the interaction between actin and myosin filaments in
muscle cells.
7. Which vitamin deficiency causes scurvy?
A. Vitamin B12
B. Vitamin C
C. Vitamin D
D. Vitamin K
Answer: B. Vitamin C
Rationale: Vitamin C is essential for collagen synthesis; its
deficiency leads to symptoms like bleeding gums and weakness,
characteristic of scurvy.
8. What is the primary benefit of consuming whole grains over
refined grains?
A. More protein
B. Higher fiber content
C. Better flavor
D. Easier digestion
Answer: B. Higher fiber content
Rationale: Whole grains retain the bran and germ, providing more
fiber, vitamins, and minerals compared to refined grains.
