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Quiz Chapter 3: Nutrition

10 questions · Form 2 Science Bab 3: Nutrition

Question 1 of 10Score: 0

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

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 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.

2. 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.

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 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.

5. A patient suffers from bleeding gums and slow wound healing. Which vitamin deficiency is the patient most likely experiencing?

  1. Vitamin A
  2. Vitamin C
  3. Vitamin D
  4. Vitamin K
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Answer: B

Vitamin C deficiency causes scurvy, characterized by swollen and bleeding gums, skin hemorrhages, and delayed healing of wounds.

6. Which food class is crucial for structural tissue repair, muscle growth, and hormone synthesis?

  1. Carbohydrates
  2. Proteins
  3. Fats
  4. Minerals
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Answer: B

Proteins are composed of amino acids required for the synthesis of new cells, growth, tissue repair, and enzyme formation.

7. What is the primary function of hydrochloric acid secreted in the stomach?

  1. Emulsifying fats into small droplets
  2. Providing an acidic medium for protease action and killing harmful bacteria
  3. Converting peptides into amino acids
  4. Reabsorbing water from indigestible food
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Answer: B

Hydrochloric acid provides an optimum pH (pH 1.5–2.0) for pepsin (protease) activity and destroys pathogens entering with food.

8. Which individual requires the highest proportion of Iron in their daily diet?

  1. An elderly retired male
  2. An adult woman who is pregnant or menstruating
  3. A sedentary desk worker
  4. A young child
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Answer: B

Iron is needed to produce hemoglobin; pregnant and menstruating women need extra iron to support fetal blood formation and replace blood loss.

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. Which mineral is necessary for building strong bones and teeth as well as assisting blood clotting?

  1. Iron
  2. Sodium
  3. Calcium
  4. Iodine
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Answer: C

Calcium is the primary inorganic structural component of bones and teeth and plays an essential role in blood clotting.

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