The oxygen released during photosynthesis comes from:
ACarbon dioxide (CO₂)
BGlucose
CWater (H₂O)
DChlorophyll
Question 2
Which plant hormone is responsible for phototropism (bending toward light)?
AGibberellin
BCytokinin
CAuxin (IAA)
DAbscisic acid (ABA)
Question 3
Which tissue transports water and minerals from roots to the rest of the plant?
APhloem
BXylem
CCortex
DEpidermis
🔒
Unlock the Full Quiz
Get all 20 questions with answer options, instant scoring, and detailed explanations for every question — plus full access to all chapters, PDFs, and mock tests.