Biology MCQs (331–360) with Answers and Reasons are designed for NEET, CUET, and Board exam preparation.
This MCQ set covers Genetics, Human Physiology, Cell Biology, Plant Physiology, and Ecology.
Regular practice of these questions helps build strong NCERT concepts and exam accuracy.
331. Which molecule carries genetic information?
Correct Answer: D
Reason: DNA stores hereditary information.
332. Which blood cells help in clotting of blood?
Correct Answer: C
Reason: Platelets help in blood clotting.
333. Which organ controls body activities by hormones?
Correct Answer: B
Reason: Endocrine glands secrete hormones.
334. Which part of the plant performs photosynthesis?
Correct Answer: C
Reason: Leaves contain chlorophyll for photosynthesis.
335. Which vitamin is essential for blood clotting?
Correct Answer: D
Reason: Vitamin K is required for clotting factors.
336. Which organ filters blood in humans?
Correct Answer: D
Reason: Kidneys remove waste from blood.
337. Which plant hormone promotes fruit ripening?
Correct Answer: C
Reason: Ethylene is responsible for fruit ripening.
338. Which microorganism is used to make curd?
Correct Answer: A
Reason: Lactobacillus converts milk into curd.
339. Which part of the eye forms the image?
Correct Answer: B
Reason: Retina is the light-sensitive layer.
340. Which gas is released during respiration?
Correct Answer: B
Reason: Carbon dioxide is a waste product of respiration.
341. Which blood group is known as universal recipient?
Correct Answer: C
Reason: AB group can receive blood from all groups.
342. Which enzyme digests carbohydrates?
Correct Answer: A
Reason: Amylase breaks starch into sugars.
343. Which plant tissue transports food?
Correct Answer: B
Reason: Phloem transports prepared food.
344. Which disease is caused by bacteria?
Correct Answer: D
Reason: Cholera is caused by bacteria.
345. Which organ stores bile?
Correct Answer: B
Reason: Gall bladder stores bile.
346. Which vitamin deficiency causes night blindness?
Correct Answer: A
Reason: Vitamin A is essential for vision.
347. Which organelle is known as the powerhouse of the cell?
Correct Answer: C
Reason: Mitochondria generate ATP.
348. Which part of the flower develops into seed?
Correct Answer: A
Reason: Ovule develops into seed after fertilization.
349. Which gas is essential for respiration?
Correct Answer: A
Reason: Oxygen is required for cellular respiration.
350. Which part of the ear maintains balance?
Correct Answer: C
Reason: Semicircular canals maintain balance.
351. Which nutrient provides maximum energy?
Correct Answer: B
Reason: Fats provide the highest energy per gram.
352. Which structure connects bones to bones?
Correct Answer: A
Reason: Ligaments connect bones to bones.
353. Which microorganism causes tuberculosis?
Correct Answer: A
Reason: Tuberculosis is caused by bacteria.
354. Which blood vessel carries oxygenated blood?
Correct Answer: D
Reason: Arteries usually carry oxygenated blood.
355. Which plant tissue transports water and minerals?
Correct Answer: A
Reason: Xylem conducts water and minerals.
356. Which vitamin deficiency causes rickets?
Correct Answer: B
Reason: Vitamin D deficiency affects bone growth.
357. Which organ temporarily stores urine?
Correct Answer: B
Reason: Urinary bladder stores urine.
358. Which part of the brain regulates hunger?
Correct Answer: D
Reason: Hypothalamus regulates hunger and thirst.
359. Which organism fixes atmospheric nitrogen?
Correct Answer: C
Reason: Rhizobium fixes nitrogen in legumes.
360. Which organelle contains digestive enzymes?
Correct Answer: D
Reason: Lysosomes contain digestive enzymes.
Biology MCQs (331–360) FAQs
1. Are these MCQs NCERT-based?
Yes, all questions are prepared strictly from NCERT syllabus.
2. Are these useful for NEET and CUET?
Yes, they are helpful for NEET, CUET, and board exams.
3. Do all MCQs include answers with reasons?
Yes, every MCQ includes a short and clear reason.
4. How many MCQs should be practiced daily?
Practicing 20–30 MCQs daily is ideal.
5. Will the next part follow the same pattern?
Yes, upcoming Biology MCQ parts will follow the same format.
Yes, all questions are prepared strictly from NCERT syllabus.
2. Are these useful for NEET and CUET?
Yes, they are helpful for NEET, CUET, and board exams.
3. Do all MCQs include answers with reasons?
Yes, every MCQ includes a short and clear reason.
4. How many MCQs should be practiced daily?
Practicing 20–30 MCQs daily is ideal.
5. Will the next part follow the same pattern?
Yes, upcoming Biology MCQ parts will follow the same format.
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