Coordination and Response

Question 1

Geotropism

Answer 1

Roots grow with gravity(positive) and stem grows against gravity (negative)

Question 2

Phototropism

Answer 2

Shoots grow towards light (positive) to maximise photosynthesis

Question 3

Auxin

Answer 3

• Hormone that stimulates growth in plants shoots
• Causes shoots to grow towards light and grow against gravity
• Inhabits growth i plant roots
• Causes toots to grow with gravity and towards moisture