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NEET UG Biology Questions
Practise biology (science) for the National Eligibility cum Entrance Test (UG): 10 multiple-choice questions, each with the correct answer and a worked explanation. Click an option to check it, or “New questions” for another set.
Biology practice
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Q1.Photosynthesis takes place in the:
Show answer & explanation
Answer: A — Chloroplasts
Chloroplasts contain chlorophyll that captures light energy.
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Q2.Antibiotics are effective against:
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Answer: B — Bacteria
Antibiotics target bacteria, not viruses.
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Q3.Which vitamin deficiency causes scurvy?
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Answer: A — Vitamin C
Scurvy results from a lack of vitamin C (ascorbic acid).
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Q4.Xylem in plants transports:
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Answer: D — Water and minerals
Xylem carries water and minerals upward; phloem carries food.
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Q5.In humans, the sex of a child is determined by the chromosome from the:
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Answer: B — Father
The father contributes either an X or a Y chromosome.
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Q6.Which blood cells help in clotting?
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Answer: C — Platelets
Platelets (thrombocytes) form clots.
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Q7.Gas exchange in the lungs takes place in the:
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Answer: D — Alveoli
Thin-walled alveoli allow oxygen and CO₂ to diffuse.
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Q8.Which enzyme in saliva begins starch digestion?
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Answer: D — Salivary amylase (ptyalin)
Salivary amylase breaks starch into maltose.
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Q9.Which part of the brain controls balance and coordination?
Show answer & explanation
Answer: B — Cerebellum
The cerebellum coordinates movement and balance.
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Q10.Which organelle synthesises proteins?
Show answer & explanation
Answer: B — Ribosome
Ribosomes translate mRNA into protein.
How to approach biology questions
Learn structure → function links (mitochondria → ATP, nephron → filtration), the major hormones and their glands, and deficiency diseases. Diagrams help with cell organelles and organ systems.
About NEET UG
National Eligibility cum Entrance Test (UG) — conducted by National Testing Agency (NTA). The single entrance test for MBBS, BDS, AYUSH and nursing admissions across India.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
NEET UG practice topics
| Topic | Section | Question source |
|---|---|---|
| Biology | Science | Question bank |
| Chemistry | Science | Calculated + question bank |
| Physics | Science | Calculated + question bank |