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Quiz Chapter 3: Nutrition

10 questions · Form 2 Science Bab 3: Nutrition

10 questions · plays in fullscreen

Full Question List & Answer Key

Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.

1. Which end product is produced when lipase breaks down lipid molecules?

  1. Glucose and Fructose
  2. Fatty acids and Glycerol
  3. Amino acids and Peptides
  4. Maltose and Starch
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Answer: B

Lipase catalyzes the hydrolysis of fats into fatty acids and glycerol.

2. What is the main function of the large intestine (colon)?

  1. Digesting complex proteins into peptides
  2. Reabsorbing water and mineral salts from undigested food residue
  3. Absorbing glucose into lacteals
  4. Producing bile to neutralize acidic chyme
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Answer: B

The large intestine absorbs remaining water and dissolved minerals from indigestible waste, compacting it into feces.

3. By what mechanism does food travel down the oesophagus into the stomach?

  1. Gravitational Freefall
  2. Peristalsis
  3. Active Transport
  4. Osmotic Suction
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Answer: B

Peristalsis is the wave-like muscular contraction and relaxation of intestinal walls pushing food through the alimentary canal.

4. What happens during the assimilation process of glucose in human liver and muscle cells?

  1. Excess glucose is converted into amino acids
  2. Glucose is oxidized to release energy, and excess is stored as glycogen
  3. Glucose is excreted through the rectum during defaecation
  4. Glucose is converted directly into bile salts
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Answer: B

During assimilation, cells oxidize glucose for cellular energy. Excess glucose is converted by insulin into glycogen for storage.

5. What deficiency condition arises when a person's diet lacks sufficient Iodine?

  1. Rickets
  2. Goitre
  3. Anaemia
  4. Scurvy
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Answer: B

Iodine is essential for thyroid hormone production; lack of iodine leads to thyroid gland enlargement, known as goitre.

6. Why do teenage boys generally require higher daily energy intake than teenage girls of the same age?

  1. Teenage boys have higher body fat percentage
  2. Teenage boys generally have higher muscle mass and basal metabolic rate
  3. Teenage girls digest food faster than boys
  4. Teenage boys possess shorter digestive tracts
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Answer: B

Higher muscle mass in males demands more metabolic energy to sustain physiological activities.

7. Which organ produces bile, and where is it temporarily stored before release?

  1. Produced in Pancreas, stored in Gallbladder
  2. Produced in Liver, stored in Gallbladder
  3. Produced in Stomach, stored in Liver
  4. Produced in Gallbladder, stored in Liver
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Answer: B

Bile is synthesized by liver cells and concentrated and stored in the gallbladder until released into the duodenum.

8. Which list contains ONLY fat-soluble vitamins?

  1. Vitamins A, B, C, D
  2. Vitamins B and C
  3. Vitamins A, D, E, K
  4. Vitamins C, D, E, K
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Answer: C

Vitamins A, D, E, and K are fat-soluble, whereas Vitamins B and C are water-soluble.

9. Which structural feature of the villus is specifically responsible for absorbing fatty acids and glycerol?

  1. Blood Capillary
  2. Lacteal
  3. Thick Epithelium
  4. Mucus Gland
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Answer: B

Lacteals are specialized lymphatic vessels located inside each villus that absorb fatty acids, glycerol, and fat-soluble vitamins.

10. What is the primary role of dietary fibre in the human digestive system?

  1. Providing quick chemical energy
  2. Stimulating peristalsis to prevent constipation
  3. Emulsifying fats in the duodenum
  4. Synthesizing hemoglobin in red blood cells
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Answer: B

Dietary fibre adds bulk to undigested material, helping the intestinal muscles push waste efficiently through peristalsis.

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