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: Secondary metabolites in plants include
A) Chlorophyll
B) Alkaloids
C) Cellulose
D) Starch
✅ Correct Answer: B
Explanation: Alkaloids are defensive chemicals.
Q: Phloem sap mainly contains
A) Sugars
B) Amino acids
C) Hormones
D) All of the above
✅ Correct Answer: D
Explanation: Phloem transports multiple substances.
Q: Root hairs originate from
A) Epidermis
B) Cortex
C) Endodermis
D) Pericycle
✅ Correct Answer: A
Explanation: Root hairs are extensions of epidermal cells.
Q: Function of collenchyma cells
A) Photosynthesis
B) Support
C) Storage
D) Transport
✅ Correct Answer: B
Explanation: Collenchyma provides flexible support.
Q: Plants storing food as starch use which organelle
A) Chloroplast
B) Amyloplast
C) Mitochondria
D) Nucleus
✅ Correct Answer: B
Explanation: Amyloplasts store starch grains.