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Nutrition

6 Class 9 Biology questions with answers and explanations.

Printable worksheet with answer key

All questions with answers

  1. Which nutrient is the main source of energy?

    • 1 Minerals
    • 2 Vitamins
    • 3 Carbohydrates
    • 4 Water
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    Correct answer: Carbohydrates

    Carbohydrates are the main and quickest energy source.

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  2. Lack of vitamin C causes:

    • 1 Scurvy
    • 2 Rickets
    • 3 Beriberi
    • 4 Night blindness
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    Correct answer: Scurvy

    Vitamin C deficiency causes scurvy.

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  3. Which mineral is needed for strong bones and teeth?

    • 1 Calcium
    • 2 Iron
    • 3 Iodine
    • 4 Sodium
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    Correct answer: Calcium

    Calcium builds bones and teeth.

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  4. Proteins are digested to:

    • 1 Glucose
    • 2 Fatty acids
    • 3 Amino acids
    • 4 Glycerol
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    Correct answer: Amino acids

    Protein digestion gives amino acids.

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  5. Bile is produced by the:

    • 1 Liver
    • 2 Pancreas
    • 3 Kidney
    • 4 Stomach
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    Correct answer: Liver

    The liver makes bile, which is stored in the gall bladder and helps digest fats.

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  6. Most digested food is absorbed in the:

    • 1 Large intestine
    • 2 Small intestine
    • 3 Stomach
    • 4 Oesophagus
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    Correct answer: Small intestine

    The small intestine has villi that give a large surface for absorption.

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More Biology topics
Introduction to biology
Solving a biological problem
Biodiversity
Cells and tissues
Cell cycle
Enzymes
Bioenergetics
Transport