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Q. Which pigment gives carrots their characteristic orange colour?

  • (A) Chlorophyll
  • (B) Carotene
  • (C) Anthocyanin
  • (D) Xanthophyll
📝 Notes
✅ Correct Answer: (B) Carotene
Explanation: Beta-carotene is a carotenoid pigment responsible for the characteristic orange colour of carrots.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:01 pm in Biology

Q. Which vitamin is essential for normal blood clotting?

  • (A) Vitamin A
  • (B) Vitamin B
  • (C) Vitamin K
  • (D) Vitamin C
📝 Notes
✅ Correct Answer: (C) Vitamin K
Explanation: Vitamin K is required for the synthesis of several proteins involved in blood clotting.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:01 pm in Biology

Q. Deficiency of which vitamin causes night blindness?

  • (A) Vitamin A
  • (B) Vitamin C
  • (C) Vitamin D
  • (D) Vitamin K
📝 Notes
✅ Correct Answer: (A) Vitamin A
Explanation: Vitamin A is important for vision, and severe deficiency can cause night blindness.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:01 pm in Biology

Q. Which vitamin deficiency causes beriberi?

  • (A) Vitamin B1
  • (B) Vitamin B2
  • (C) Vitamin B6
  • (D) Vitamin B12
📝 Notes
✅ Correct Answer: (A) Vitamin B1
Explanation: Beriberi is caused by a deficiency of thiamine, also known as vitamin B1.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:01 pm in Biology

Q. Which vitamin deficiency can cause pernicious anaemia?

  • (A) Vitamin B12
  • (B) Vitamin C
  • (C) Vitamin D
  • (D) Vitamin E
📝 Notes
✅ Correct Answer: (A) Vitamin B12
Explanation: Vitamin B12 deficiency can cause megaloblastic anaemia, and pernicious anaemia is a specific form caused by impaired vitamin B12 absorption.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:01 pm in Biology

Q. Which gland is often called the master gland of the human body?

  • (A) Thyroid gland
  • (B) Pituitary gland
  • (C) Adrenal gland
  • (D) Pancreas
📝 Notes
✅ Correct Answer: (B) Pituitary gland
Explanation: The pituitary gland regulates several other endocrine glands and produces hormones involved in growth and reproduction.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:01 pm in Biology

Q. Which hormone regulates the metabolic rate of the body?

  • (A) Insulin
  • (B) Thyroxine
  • (C) Adrenaline
  • (D) Glucagon
📝 Notes
✅ Correct Answer: (B) Thyroxine
Explanation: Thyroid hormones, particularly thyroxine, play an important role in regulating metabolism.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:01 pm in Biology

Q. Which part of the digestive system is the main site of nutrient absorption?

  • (A) Stomach
  • (B) Small intestine
  • (C) Large intestine
  • (D) Oesophagus
📝 Notes
✅ Correct Answer: (B) Small intestine
Explanation: The small intestine has numerous villi and microvilli that provide a large surface area for absorption of nutrients.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:01 pm in Biology

Q. Which enzyme begins protein digestion in the stomach?

  • (A) Amylase
  • (B) Pepsin
  • (C) Lipase
  • (D) Trypsin
📝 Notes
✅ Correct Answer: (B) Pepsin
Explanation: Pepsin is a stomach enzyme that begins the digestion of proteins into smaller peptides.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:01 pm in Biology

Q. Which organ stores bile before it is released into the small intestine?

  • (A) Liver
  • (B) Pancreas
  • (C) Gallbladder
  • (D) Stomach
📝 Notes
✅ Correct Answer: (C) Gallbladder
Explanation: The gallbladder stores and concentrates bile produced by the liver and releases it into the small intestine.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:01 pm in Biology

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