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Worksheet: Food and its Components | General Knowledge Encyclopedia - Class 8 PDF Download

Section A: Multiple Choice Questions (MCQs)

Q1: Which of the following nutrients is an excellent source of energy for the body?
(a) 
Proteins
(b) Vitamins
(c) Fats
(d) Fiber

Q2: Which of the following nutrients is needed for the growth and repair of body tissues?
(a)
Carbohydrates
(b) Proteins
(c) Minerals
(d) Water

Q3: Which of the following is not a water-soluble vitamin?
(a) 
Vitamin C
(b) Vitamin B12
(c) Vitamin A
(d) Folate

Q4: Which of the following minerals is essential for the formation of hemoglobin?
(a)
Iron
(b) Calcium
(c) Sodium
(d) Potassium

Q5: Which of the following macronutrients is an essential component of cell membranes?
(a)
Carbohydrates
(b) Proteins
(c) Fats
(d) Fiber

Q6: Which of the following nutrients is an antioxidant?
(a)
Calcium
(b) Vitamin D
(c) Vitamin E
(d) Sodium

Q7: Which of the following is an example of a complete protein?
(a) 
Rice
(b) Lentils
(c) Eggs
(d) Corn

Q8: Which of the following vitamins is necessary for proper blood clotting?
(a) 
Vitamin A
(b) Vitamin C
(c) Vitamin K
(d) Vitamin B12

Q9: Which of the following food sources is rich in omega-3 fatty acids?
(a) 
Olive oil
(b) Avocado
(c) Salmon
(d) White bread

Q10: Which of the following is not a function of dietary fiber?
(a) 
Promotes bowel regularity
(b) Lowers cholesterol levels
(c) Provides quick energy
(d) Supports healthy digestion

Section B: True or False

Q1: Carbohydrates are the body's primary source of energy.

Q2: Proteins are made up of amino acids.

Q3: Fats are essential for the absorption of fat-soluble vitamins.

Q4: Vitamins and minerals are macronutrients.

Q5: Water is considered a macronutrient.

Section C: Fill in the Blanks

Q1: _______ is a complex carbohydrate found in grains, fruits, and vegetables.

Q2: _______ is the process of breaking down food into smaller components for digestion.

Q3: _______ is an essential mineral for building strong bones and teeth.

Q4: _______ is a type of fat that is generally solid at room temperature.

Q5: _______ is the main component of plant cell walls and is not digestible by humans.

You can access the solutions to this worksheet here.

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FAQs on Worksheet: Food and its Components - General Knowledge Encyclopedia - Class 8

1. What are the main components of food?
Ans. The main components of food include carbohydrates, proteins, fats, vitamins, minerals, and water. Each component plays a vital role in maintaining health, providing energy, and supporting bodily functions.
2. How do carbohydrates function in our diet?
Ans. Carbohydrates are the body's primary source of energy. They are broken down into glucose, which is used by the body’s cells for energy. They also provide dietary fiber, which is important for digestive health.
3. Why are proteins essential for the body?
Ans. Proteins are essential for growth, repair, and maintenance of body tissues. They are made up of amino acids, which are necessary for producing enzymes, hormones, and other body chemicals.
4. What role do vitamins and minerals play in food?
Ans. Vitamins and minerals are crucial for various metabolic processes in the body. They help in immune function, bone health, and energy production. Each vitamin and mineral has specific roles, making a balanced diet important for overall health.
5. How can we ensure a balanced diet?
Ans. To ensure a balanced diet, one should include a variety of foods from all food groups: fruits, vegetables, grains, proteins, and dairy. It is also important to pay attention to portion sizes and to limit processed foods and sugars.
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