Welcome to the 9th Class Biology Chapter 8 MCQs Practice and Quiz Tests. We are presenting you with top MCQ questions from the 9th Class Biology Chapter 8 Nutrition.
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Which nutrient is the primary source of energy for the human body?
a) Protein
b) Fat
c) Carbohydrate
d) Vitamin
What is the process by which the body breaks down food into smaller molecules for absorption?
a) Digestion
b) Metabolism
c) Assimilation
d) Absorption
Which of the following is a fat-soluble vitamin?
a) Vitamin C
b) Vitamin B12
c) Vitamin D
d) Vitamin B6
Which nutrient is essential for the growth and repair of tissues?
a) Protein
b) Carbohydrate
c) Fat
d) Fiber
The process of converting absorbed nutrients into energy and building blocks for the body is called:
a) Digestion
b) Metabolism
c) Absorption
d) Assimilation
Which of the following is a good source of complex carbohydrates?
a) White bread
b) Brown rice
c) Butter
d) Ice cream
Which of the following nutrients is responsible for building and repairing body tissues?
a) Protein
b) Fat
c) Carbohydrate
d) Vitamin
What is the primary function of vitamins in the body?
a) Provide energy
b) Build muscles
c) Regulate body temperature
d) Facilitate chemical reactions
Which of the following vitamins is water-soluble?
a) Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin E
Which nutrient is the most energy-dense, providing 9 calories per gram?
a) Protein
b) Fat
c) Carbohydrate
d) Fiber
Which of the following nutrients is a major component of cell membranes and hormones?
a) Protein
b) Fat
c) Carbohydrate
d) Vitamin
Which of the following is a good source of vitamin C?
a) Oranges
b) Eggs
c) Milk
d) Nuts
What is the process by which nutrients are taken from the digestive system into the bloodstream?
a) Digestion
b) Metabolism
c) Absorption
d) Assimilation
Which nutrient is the body’s main source of quick energy?
a) Protein
b) Fat
c) Carbohydrate
d) Fiber
What is the primary function of minerals in the body?
a) Provide energy
b) Build muscles
c) Regulate body temperature
d) Aid in various physiological processes
Which of the following vitamins is essential for proper blood clotting?
a) Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin K
Which of the following nutrients is an essential component of enzymes, hormones, and antibodies?
a) Protein
b) Fat
c) Carbohydrate
d) Vitamin
What is the primary function of carbohydrates in the body?
a) Provide energy
b) Build muscles
c) Regulate body temperature
d) Facilitate chemical reactions
Which of the following is a good source of calcium?
a) Meat
b) Beans
c) Milk
d) Bread
Which nutrient is essential for the proper functioning of the nervous system and brain?
a) Protein
b) Fat
c) Carbohydrate
d) Vitamin
Which of the following vitamins is essential for maintaining healthy vision and skin?
a) Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin E
What is the primary function of proteins in the body?
a) Provide energy
b) Build muscles
c) Regulate body temperature
d) Act as enzymes and hormones
Which of the following nutrients is essential for maintaining healthy bones and teeth?
a) Protein
b) Fat
c) Carbohydrate
d) Calcium
What is the primary function of fiber in the body?
a) Provide energy
b) Build muscles
c) Aid in digestion and prevent constipation
d) Facilitate chemical reactions
Which of the following vitamins is essential for proper immune function?
a) Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin E
Which nutrient is the body’s secondary source of energy, providing 4 calories per gram?
a) Protein
b) Fat
c) Carbohydrate
d) Fiber
What is the primary function of water in the body?
a) Provide energy
b) Build muscles
c) Regulate body temperature
d) Facilitate chemical reactions
Which of the following vitamins is essential for the absorption of calcium and phosphorus?
a) Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin E
Which nutrient is essential for proper brain function and cognitive development?
a) Protein
b) Fat
c) Carbohydrate
d) Iron
What is the primary function of iron in the body?
a) Provide energy
b) Build muscles
c) Aid in oxygen transport
d) Facilitate chemical reactions
Which of the following nutrients is essential for the formation and repair of red blood cells?
a) Protein
b) Fat
c) Carbohydrate
d) Iron
What is the primary function of antioxidants in the body?
a) Provide energy
b) Build muscles
c) Neutralize harmful free radicals
d) Facilitate chemical reactions
Which of the following vitamins is essential for proper nerve function and the synthesis of
DNA?
a) Vitamin A
b) Vitamin C
c) Vitamin B12
d) Vitamin K
Which nutrient is essential for the proper functioning of the immune system and wound healing?
a) Protein
b) Fat
c) Carbohydrate
d) Vitamin C
What is the primary function of phosphorus in the body?
a) Provide energy
b) Build muscles
c) Aid in bone and teeth formation
d) Facilitate chemical reactions
Which of the following nutrients is essential for maintaining healthy skin and vision?
a) Protein
b) Fat
c) Carbohydrate
d) Vitamin A
What is the primary function of zinc in the body?
a) Provide energy
b) Build muscles
c) Aid in enzyme function and immune system health
d) Facilitate chemical reactions
Which of the following vitamins is essential for the absorption of calcium and phosphorus?
a) Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin E
Which nutrient is essential for the proper functioning of the nervous system and brain?
a) Protein
b) Fat
c) Carbohydrate
d) Vitamin
What is the primary function of iron in the body?
a) Provide energy
b) Build muscles
c) Aid in oxygen transport
d) Facilitate chemical reactions
Which of the following nutrients is essential for proper brain function and cognitive development?
a) Protein
b) Fat
c) Carbohydrate
d) Iron
What is the primary function of antioxidants in the body?
a) Provide energy
b) Build muscles
c) Neutralize harmful free radicals
d) Facilitate chemical reactions
Which of the following vitamins is essential for proper nerve function and the synthesis of
DNA?
a) Vitamin A
b) Vitamin C
c) Vitamin B12
d) Vitamin K
Which nutrient is essential for the proper functioning of the immune system and wound healing?
a) Protein
b) Fat
c) Carbohydrate
d) Vitamin C
What is the primary function of phosphorus in the body?
a) Provide energy
b) Build muscles
c) Aid in bone and teeth formation
d) Facilitate chemical reactions
Which of the following nutrients is essential for maintaining healthy skin and vision?
a) Protein
b) Fat
c) Carbohydrate
d) Vitamin A
What is the primary function of zinc in the body?
a) Provide energy
b) Build muscles
c) Aid in enzyme function and immune system health
d) Facilitate chemical reactions
Which of the following vitamins is essential for the formation and repair of red blood cells?
a) Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin K
Which nutrient is essential for proper brain development during pregnancy and infancy?
a) Protein
b) Fat
c) Carbohydrate
d) Folate
What is the primary function of iodine in the body?
a) Provide energy
b) Build muscles
c) Aid in thyroid hormone synthesis
d) Facilitate chemical reactions
Which of the following nutrients is essential for maintaining healthy bones and teeth?
a) Protein
b) Fat
c) Carbohydrate
d) Calcium
What is the primary function of magnesium in the body?
a) Provide energy
b) Build muscles
c) Aid in enzyme function and muscle contractions
d) Facilitate chemical reactions
Which of the following vitamins is essential for proper blood clotting?
a) Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin K
What is the primary function of potassium in the body?
a) Provide energy
b) Build muscles
c) Aid in nerve function and fluid balance
d) Facilitate chemical reactions
Which of the following nutrients is essential for proper brain function and memory?
a) Protein
b) Fat
c) Carbohydrate
d) Omega-3 fatty acids
What is the primary function of selenium in the body?
a) Provide energy
b) Build muscles
c) Act as an antioxidant and support immune function
d) Facilitate chemical reactions
Which of the following vitamins is essential for proper immune function?
a) Vitamin A
b) Vitamin C
c) Vitamin D
d) Vitamin E
What is the primary function of sodium in the body?
a) Provide energy
b) Build muscles
c) Aid in nerve function and fluid balance
d) Facilitate chemical reactions
Which of the following nutrients is essential for the proper functioning of the thyroid gland?
a) Protein
b) Fat
c) Carbohydrate
d) Iodine
What is the primary function of vitamin E in the body?
a) Provide energy
b) Build muscles
c) Act as an antioxidant and protect cell membranes
d) Facilitate chemical reactions
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