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Q. Which pigment is primarily responsible for photosynthesis in green plants?

  • (A) Carotene
  • (B) Xanthophyll
  • (C) Chlorophyll
  • (D) Anthocyanin
📝 Notes
✅ Correct Answer: (C) Chlorophyll
Explanation: Chlorophyll absorbs light energy and plays a central role in photosynthesis.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:00 pm in Biology

Q. Which part of the human brain controls balance and coordination of muscular activities?

  • (A) Cerebrum
  • (B) Cerebellum
  • (C) Medulla oblongata
  • (D) Hypothalamus
📝 Notes
✅ Correct Answer: (B) Cerebellum
Explanation: The cerebellum coordinates voluntary movements and helps maintain balance and posture.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:00 pm in Biology

Q. Which blood cells are primarily responsible for fighting infections?

  • (A) Red blood cells
  • (B) Platelets
  • (C) White blood cells
  • (D) Plasma cells
📝 Notes
✅ Correct Answer: (C) White blood cells
Explanation: White blood cells, or leukocytes, protect the body against pathogens and other foreign substances.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:00 pm in Biology

Q. Which vitamin is mainly synthesized in the skin when exposed to sunlight?

  • (A) Vitamin A
  • (B) Vitamin B12
  • (C) Vitamin C
  • (D) Vitamin D
📝 Notes
✅ Correct Answer: (D) Vitamin D
Explanation: Exposure to ultraviolet B radiation helps the skin synthesize vitamin D.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:00 pm in Biology

Q. Which enzyme present in saliva begins the digestion of starch?

  • (A) Pepsin
  • (B) Trypsin
  • (C) Salivary amylase
  • (D) Lipase
📝 Notes
✅ Correct Answer: (C) Salivary amylase
Explanation: Salivary amylase, also called ptyalin, breaks down starch into simpler carbohydrates.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:00 pm in Biology

Q. Which structure controls the entry and exit of substances into a cell?

  • (A) Cell wall
  • (B) Cell membrane
  • (C) Nucleus
  • (D) Cytoplasm
📝 Notes
✅ Correct Answer: (B) Cell membrane
Explanation: The cell membrane is selectively permeable and regulates the movement of substances into and out of the cell.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:00 pm in Biology

Q. Which hormone regulates blood glucose levels by promoting the uptake of glucose by cells?

  • (A) Insulin
  • (B) Thyroxine
  • (C) Adrenaline
  • (D) Growth hormone
📝 Notes
✅ Correct Answer: (A) Insulin
Explanation: Insulin is secreted by the beta cells of the pancreas and helps lower blood glucose levels.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:00 pm in Biology

Q. Which type of cell division produces four genetically different haploid cells?

  • (A) Mitosis
  • (B) Binary fission
  • (C) Meiosis
  • (D) Budding
📝 Notes
✅ Correct Answer: (C) Meiosis
Explanation: Meiosis involves two successive divisions and produces four haploid cells, each with half the chromosome number of the parent cell.

Published by Team MCQ Buddy ⭐ 29.34K Points at 30-Aug-2026 12:00 pm in Biology

Q. A man and his wife have three sons. Each son has two daughters. How many persons are there in the family?

  • (A) 9
  • (B) 10
  • (C) 11
  • (D) 12
📝 Notes
✅ Correct Answer: (C) 11
Explanation: The man and wife = 2, three sons = 3, and daughters = 3 × 2 = 6. Total = 2 + 3 + 6 = 11.

Published by Mr. Dubey ⭐ 111.54K Points at 24-Aug-2026 09:18 pm in Reasoning

Q. A group consists of 7 men, 5 women, and 8 children. How many persons are there altogether?

  • (A) 18
  • (B) 19
  • (C) 20
  • (D) 21
📝 Notes
✅ Correct Answer: (C) 20
Explanation: Total = 7 + 5 + 8 = 20 persons.

Published by Mr. Dubey ⭐ 111.54K Points at 24-Aug-2026 09:18 pm in Reasoning

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