“Top 20 NEET 2025 MCQs with Answers | Biology, Physics & Chemistry Practice Questions”

 “Top 20 NEET 2025 MCQs with Answers | Biology, Physics & Chemistry Practice Questions”

Prepare smarter for NEET 2025 with this curated set of Top 20 NEET MCQs with Answers covering Biology, Physics, and Chemistry. Whether you're revising key concepts or testing your exam readiness, these NEET practice questions are designed to match the latest NEET syllabus 2025 and exam trends. Each question is crafted to boost your understanding, improve speed, and enhance accuracy. This post is ideal for students aiming for top ranks in NEET UG and looking for NEET previous year questions, mock test-style MCQs, and chapter-wise practice. Stay ahead with exam-focused preparation, and bookmark this page for daily revision. Perfect for aspirants of medical entrance exams, this article is optimized for search engines using trending keywords like NEET MCQs 2025, NEET Biology questions, and NEET Physics practice. Dive in and start mastering your concepts today!

1. Which hormone regulates blood glucose levels?
   A) Insulin ✅
   B) Thyroxine
   C) Adrenaline
   D) Cortisol

2. Which part of the brain controls voluntary movements?
   A) Cerebellum
   B) Medulla
   C) Cerebrum ✅
   D) Pons

3. Which vitamin is synthesized in human skin upon sunlight exposure?
   A) Vitamin A
   B) Vitamin D ✅
   C) Vitamin C
   D) Vitamin B12

4. Which blood group is considered the universal donor?
   A) AB+
   B) O- ✅
   C) A+
   D) B-

5. Which plant hormone promotes cell elongation?
   A) Cytokinin
   B) Auxin ✅
   C) Gibberellin
   D) Ethylene

6. Which process involves the formation of gametes?
   A) Mitosis
   B) Meiosis ✅
   C) Binary fission
   D) Budding

7. Which organelle contains the digestive enzymes for intracellular digestion?
   A) Mitochondria
   B) Ribosome
   C) Lysosome ✅
   D) Golgi apparatus

8. In which phase of the cell cycle does DNA replication occur?
   A) G1
   B) S phase ✅
   C) G2
   D) M

9. Which organelle is the site of photosynthesis in plant cells?
   A) Mitochondria
   B) Endoplasmic reticulum
   C) Chloroplasts ✅
   D) Golgi apparatus

10. Which part of a neuron receives incoming signals?
    A) Axon
    B) Soma (cell body)
    C) Dendrite ✅
    D) Synapse

11. Which vitamin deficiency causes scurvy?
    A) Vitamin A
    B) Vitamin C ✅
    C) Vitamin D
    D) Vitamin E

12. Which blood component helps in clotting?
    A) Red blood cells
    B) White blood cells
    C) Platelets ✅
    D) Plasma

13. Which macromolecule primarily makes up the cell membrane?
    A) Nucleic acids
    B) Carbohydrates
    C) Lipids (phospholipids) ✅
    D) Proteins

14. Which law states $V = I \times R$?
    A) Ohm’s Law ✅
    B) Newton’s Law
    C) Faraday’s Law
    D) Hooke’s Law

15. Which mirror is used in car headlights?
    A) Convex
    B) Concave ✅
    C) Plane
    D) Parabolic

16. What is the speed of light in vacuum?
    A) 3 × 10⁸ m/s ✅
    B) 1.5 × 10⁸ m/s
    C) 2.5 × 10⁸ m/s
    D) 3.5 × 10⁸ m/s

17. Which quantity remains constant in an ideal transformer?
    A) Voltage
    B) Current
    C) Power ✅
    D) Resistance

18. Which wave is used in mobile communication?
    A) Infrared
    B) Microwave ✅
    C) Ultraviolet
    D) X-ray

19. Which device converts AC to DC?
    A) Transformer
    B) Rectifier ✅
    C) Generator
    D) D) Motor

20. Which gas is released at the cathode during electrolysis of water?
    A) Oxygen
    B) Hydrogen ✅
    C) Nitrogen
    D) Carbon dioxide

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