Which type of plant hormone appears to play a major role in gravitropism in roots and shoots?

Question

Quizplus · Accepted Answer

Auxin is the plant hormone primarily responsible for gravitropism, which is the growth of plant parts in response to gravity. In roots, auxin accumulates on the lower side, inhibiting growth and causing the root to bend downwards, while in shoots, it promotes growth on the lower side, causing the shoot to bend upwards.

Which Type of Plant Hormone Appears to Play a Major