Botany MCQs
Ace NEET, CSS, UPSC, PMS, PPSC, and NTS exams with Botany MCQs focused on plant physiology, reproduction, taxonomy, and ecology. Gain a solid foundation to excel in biology and competitive exams.
Q: Gas released during photosynthesis
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Methane
✅ Correct Answer: A
Explanation: Oxygen is a byproduct of photosynthesis.
Q: Main storage carbohydrate in plants
A) Glycogen
B) Cellulose
C) Starch
D) Sucrose
✅ Correct Answer: C
Explanation: Starch is the primary storage polysaccharide.
Q: Structure allowing gas exchange in leaves
A) Stomata
B) Trichomes
C) Xylem
D) Phloem
✅ Correct Answer: A
Explanation: Stomata regulate gas exchange and transpiration.
Q: Type of vascular tissue conducting organic substances
A) Phloem
B) Xylem
C) Parenchyma
D) Sclerenchyma
✅ Correct Answer: A
Explanation: Phloem transports sugars and amino acids.
Q: Tissue providing mechanical support in plants
A) Parenchyma
B) Collenchyma
C) Xylem
D) Phloem
✅ Correct Answer: B
Explanation: Collenchyma cells have thickened walls for support.