Question

Phototropic and geotropic movements are linked to________

• A. ethylene
• B. ABA
• C. GA
• D. Auxin

Answer 1

Answer:

D. Auxin

• Auxin is associated with different movement of plant stem including phototropic and geotropic movements.

• GA promotes early maturity of plants.

• ABA prevents death of plant in stressful conditions.

• Ethylene increases respiratory rate of plants.