1. Which of the following is the primary function of carbohydrates
in the human body?
A) To provide energy
B) To regulate body temperature
C) To build muscle tissue
D) To store fat for long-term energy
Answer: A) To provide energy
Rationale: Carbohydrates are the body’s primary energy source,
especially for brain function and high-intensity exercise. They are
broken down into glucose, which is used by cells for energy.
2. What is the recommended daily intake of protein for an average
adult based on body weight?
A) 0.8 grams per kilogram of body weight
B) 1.5 grams per kilogram of body weight
C) 2.2 grams per kilogram of body weight
D) 1 gram per pound of body weight
Answer: A) 0.8 grams per kilogram of body weight
Rationale: The general recommendation for protein intake for the
average adult is 0.8 grams per kilogram of body weight, although
individual needs can vary depending on physical activity levels.
3. Which of the following vitamins is essential for the absorption
of calcium in the body?
A) Vitamin C
B) Vitamin A
C) Vitamin D
D) Vitamin K
Answer: C) Vitamin D
Rationale: Vitamin D is crucial for calcium absorption in the intestines,
which is essential for maintaining bone health.
,4. Which of these fats is considered to be the healthiest for heart
health?
A) Saturated fats
B) Trans fats
C) Monounsaturated fats
D) Polyunsaturated fats
Answer: C) Monounsaturated fats
Rationale: Monounsaturated fats, found in olive oil and avocados, are
known to improve heart health by reducing LDL cholesterol levels.
5. Which of the following best describes a food allergy?
A) An adverse reaction to food due to poor digestion
B) An immune system reaction to a harmless substance in food
C) A response to high levels of sugar in food
D) A result of an intolerance to certain food additives
Answer: B) An immune system reaction to a harmless substance in
food
Rationale: A food allergy occurs when the immune system mistakenly
identifies a food protein as harmful and reacts accordingly, leading to
symptoms that can range from mild to severe.
6. What is the term for the process by which the body converts
food into usable energy?
A) Metabolism
B) Digestion
C) Absorption
D) Respiration
Answer: A) Metabolism
Rationale: Metabolism refers to the chemical reactions within the body
that convert food into energy and other necessary compounds.
, 7. Which nutrient is most important for maintaining healthy red
blood cells?
A) Vitamin B12
B) Vitamin C
C) Iron
D) Calcium
Answer: C) Iron
Rationale: Iron is essential for the production of hemoglobin in red
blood cells, which carries oxygen throughout the body.
8. Which of the following is the primary characteristic of a
complete protein?
A) It contains only amino acids found in animal products
B) It contains all nine essential amino acids
C) It can be digested more easily than incomplete proteins
D) It provides more calories than incomplete proteins
Answer: B) It contains all nine essential amino acids
Rationale: Complete proteins contain all nine essential amino acids
that the body cannot produce on its own, typically found in animal
products like meat, eggs, and dairy.
9. The term "glycemic index" refers to:
A) A measurement of fat content in food
B) The rate at which blood sugar levels rise after eating a carbohydrate
C) The amount of protein in a food item
D) The level of vitamins in a food
Answer: B) The rate at which blood sugar levels rise after eating a
carbohydrate
Rationale: The glycemic index (GI) measures how quickly
carbohydrate-containing foods raise blood glucose levels.
in the human body?
A) To provide energy
B) To regulate body temperature
C) To build muscle tissue
D) To store fat for long-term energy
Answer: A) To provide energy
Rationale: Carbohydrates are the body’s primary energy source,
especially for brain function and high-intensity exercise. They are
broken down into glucose, which is used by cells for energy.
2. What is the recommended daily intake of protein for an average
adult based on body weight?
A) 0.8 grams per kilogram of body weight
B) 1.5 grams per kilogram of body weight
C) 2.2 grams per kilogram of body weight
D) 1 gram per pound of body weight
Answer: A) 0.8 grams per kilogram of body weight
Rationale: The general recommendation for protein intake for the
average adult is 0.8 grams per kilogram of body weight, although
individual needs can vary depending on physical activity levels.
3. Which of the following vitamins is essential for the absorption
of calcium in the body?
A) Vitamin C
B) Vitamin A
C) Vitamin D
D) Vitamin K
Answer: C) Vitamin D
Rationale: Vitamin D is crucial for calcium absorption in the intestines,
which is essential for maintaining bone health.
,4. Which of these fats is considered to be the healthiest for heart
health?
A) Saturated fats
B) Trans fats
C) Monounsaturated fats
D) Polyunsaturated fats
Answer: C) Monounsaturated fats
Rationale: Monounsaturated fats, found in olive oil and avocados, are
known to improve heart health by reducing LDL cholesterol levels.
5. Which of the following best describes a food allergy?
A) An adverse reaction to food due to poor digestion
B) An immune system reaction to a harmless substance in food
C) A response to high levels of sugar in food
D) A result of an intolerance to certain food additives
Answer: B) An immune system reaction to a harmless substance in
food
Rationale: A food allergy occurs when the immune system mistakenly
identifies a food protein as harmful and reacts accordingly, leading to
symptoms that can range from mild to severe.
6. What is the term for the process by which the body converts
food into usable energy?
A) Metabolism
B) Digestion
C) Absorption
D) Respiration
Answer: A) Metabolism
Rationale: Metabolism refers to the chemical reactions within the body
that convert food into energy and other necessary compounds.
, 7. Which nutrient is most important for maintaining healthy red
blood cells?
A) Vitamin B12
B) Vitamin C
C) Iron
D) Calcium
Answer: C) Iron
Rationale: Iron is essential for the production of hemoglobin in red
blood cells, which carries oxygen throughout the body.
8. Which of the following is the primary characteristic of a
complete protein?
A) It contains only amino acids found in animal products
B) It contains all nine essential amino acids
C) It can be digested more easily than incomplete proteins
D) It provides more calories than incomplete proteins
Answer: B) It contains all nine essential amino acids
Rationale: Complete proteins contain all nine essential amino acids
that the body cannot produce on its own, typically found in animal
products like meat, eggs, and dairy.
9. The term "glycemic index" refers to:
A) A measurement of fat content in food
B) The rate at which blood sugar levels rise after eating a carbohydrate
C) The amount of protein in a food item
D) The level of vitamins in a food
Answer: B) The rate at which blood sugar levels rise after eating a
carbohydrate
Rationale: The glycemic index (GI) measures how quickly
carbohydrate-containing foods raise blood glucose levels.
