Question

incorrect answer, you get one more chance 25/30 what is the role of auxin that causes a plant to bend towards light? what tropism is the plant exhibiting? hydrotropism auxin causes the increase in the number of plant cells. geotropism phototropism auxin causes cells that are on the dark side to grow faster.

Explanation:

1. For the tropism: Phototropism is the plant's growth response to light, so the plant bending towards light exhibits phototropism. Hydrotropism is for water, geotropism for gravity, so "phototropism" is correct.
2. For auxin's role: Auxin moves to the dark side of the plant, causing those cells to elongate (grow faster) than the light - side cells, which makes the plant bend towards light. It doesn't increase the number of cells (that's cell division, not auxin's main role in phototropism). So "Auxin causes cells that are on the dark side to grow faster" is correct, and "phototropism" is the correct tropism.

Answer:

• phototropism
• Auxin causes cells that are on the dark side to grow faster