Biology MCQs with answers Page - 258

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Q. Which pigment gives carrots their characteristic orange colour?

  • (A) Chlorophyll
  • (B) Carotene
  • (C) Anthocyanin
  • (D) Xanthophyll

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Q. Which vitamin is essential for normal blood clotting?

  • (A) Vitamin A
  • (B) Vitamin B
  • (C) Vitamin K
  • (D) Vitamin C

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Q. Deficiency of which vitamin causes night blindness?

  • (A) Vitamin A
  • (B) Vitamin C
  • (C) Vitamin D
  • (D) Vitamin K

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Q. Which vitamin deficiency causes beriberi?

  • (A) Vitamin B1
  • (B) Vitamin B2
  • (C) Vitamin B6
  • (D) Vitamin B12

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Q. Which vitamin deficiency can cause pernicious anaemia?

  • (A) Vitamin B12
  • (B) Vitamin C
  • (C) Vitamin D
  • (D) Vitamin E

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

  • (A) Thyroid gland
  • (B) Pituitary gland
  • (C) Adrenal gland
  • (D) Pancreas

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

  • (A) Insulin
  • (B) Thyroxine
  • (C) Adrenaline
  • (D) Glucagon

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

  • (A) Stomach
  • (B) Small intestine
  • (C) Large intestine
  • (D) Oesophagus

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Q. Which enzyme begins protein digestion in the stomach?

  • (A) Amylase
  • (B) Pepsin
  • (C) Lipase
  • (D) Trypsin

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

  • (A) Liver
  • (B) Pancreas
  • (C) Gallbladder
  • (D) Stomach

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