Biology Mock Test for NEET 2025 PDF Free Download | 100+ MCQs with Answers

 Biology Mock Test for NEET 2025 PDF Free Download | 100+ MCQs with Answers

Prepare smarter for NEET 2025 with our Biology Mock Test PDF Free Download exclusively on MCQJourney.com. This post brings you a curated set of 100+ Biology MCQs with detailed answers, designed to match the latest NEET exam pattern. Covering essential topics like Human Physiology, Genetics, Ecology, Plant Biology, and Cell Structure, these practice questions help students strengthen their concepts and improve accuracy. The mock test is structured to simulate the real exam environment, making it an ideal resource for self-study and revision. Whether you’re focusing on NCERT-based questions or advanced problem-solving, this free PDF ensures comprehensive coverage of high-yield topics. With keyword-optimized content, easy explanations, and exam-oriented practice, this article is perfect for aspirants aiming to boost their NEET 2025 Biology preparation. Download the free PDF, attempt the MCQs, and track your progress effectively. Stay ahead in your preparation journey with MCQ Journey – your trusted exam partner.

🔑 20 Biology MCQs with Answers

1. Which cell organelle is known as the powerhouse of the cell?

   • a) Ribosome

   • b) Mitochondria ✅

   • c) Golgi body

   • d) Lysosome

2. Which tissue transports food in plants?

   • a) Xylem

   • b) Phloem ✅

   • c) Cambium

   • d) Cork

3. DNA replication occurs during which phase of the cell cycle?

   • a) G1 phase

   • b) S phase ✅

   • c) G2 phase

   • d) M phase

4. Which hormone regulates blood sugar levels?

   • a) Insulin ✅

   • b) Thyroxine

   • c) Adrenaline

   • d) Cortisol

5. Which vitamin is essential for blood clotting?

   • a) Vitamin A

   • b) Vitamin K ✅

   • c) Vitamin D

   • d) Vitamin C

6. Which organ in humans is responsible for detoxification?

   • a) Kidney

   • b) Liver ✅

   • c) Lungs

   • d) Heart

7. Which structure in plants absorbs water from soil?

   • a) Root hairs ✅

   • b) Stem

   • c) Leaves

   • d) Flowers

8. Which scientist proposed the theory of natural selection?

   • a) Mendel

   • b) Darwin ✅

   • c) Lamarck

   • d) Wallace

9. Which blood group is called the universal donor?

   • a) AB+

   • b) O- ✅

   • c) A+

   • d) B-

10. Which enzyme breaks down starch into maltose?

    • a) Lipase

    • b) Amylase ✅

    • c) Pepsin

    • d) Trypsin

11. Which organelle is involved in protein synthesis?

    • a) Ribosome ✅

    • b) Mitochondria

    • c) Vacuole

    • d) Nucleus

12. Which part of the brain controls balance and coordination?

    • a) Cerebrum

    • b) Cerebellum ✅

    • c) Medulla

    • d) Hypothalamus

13. Which gas is released during photosynthesis?

    • a) CO₂

    • b) O₂ ✅

    • c) N₂

    • d) H₂

14. Which genetic disorder is caused by an extra chromosome 21?

    • a) Turner’s syndrome

    • b) Down’s syndrome ✅

    • c) Klinefelter’s syndrome

    • d) Hemophilia

15. Which pigment gives plants their green color?

    • a) Chlorophyll ✅

    • b) Carotene

    • c) Xanthophyll

    • d) Anthocyanin

16. Which organ produces bile juice?

    • a) Pancreas

    • b) Liver ✅

    • c) Gall bladder

    • d) Stomach

17. Which blood vessel carries oxygenated blood from lungs to heart?

    • a) Pulmonary artery

    • b) Pulmonary vein ✅

    • c) Aorta

    • d) Vena cava

18. Which process converts glucose into energy in cells?

    • a) Photosynthesis

    • b) Respiration ✅

    • c) Fermentation

    • d) Transpiration

19. Which organ in plants performs photosynthesis?

    • a) Stem

    • b) Leaf ✅

    • c) Root

    • d) Flower

20. Which scientist is known as the Father of Genetics?

• a) Darwin

• b) Mendel ✅

• c) Watson

• d) Crick

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