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: Phloem loading mainly occurs in
A) Companion cells
B) Sieve tubes
C) Parenchyma cells
D) Xylem vessels
✅ Correct Answer: A
Explanation: Companion cells assist phloem loading.
Q: Function of root endodermis
A) Transport water
B) Control flow to vascular tissue
C) Photosynthesis
D) Gas exchange
✅ Correct Answer: B
Explanation: Endodermis regulates selective absorption.
Q: Lenticels are found in
A) Leaves
B) Stems
C) Roots
D) Flowers
✅ Correct Answer: B
Explanation: Lenticels allow gas exchange in woody stems.
Q: Seed dormancy helps plants by
A) Immediate germination
B) Surviving unfavorable conditions
C) Faster growth
D) Preventing pollination
✅ Correct Answer: B
Explanation: Dormancy delays germination till favorable conditions.
Q: Structure responsible for hormone transport in plants
A) Phloem
B) Xylem
C) Parenchyma
D) Collenchyma
✅ Correct Answer: A
Explanation: Phloem transports hormones along with nutrients.