Question

Select One
How does auxin affect the growth of plant stems?(1 point) Responses It builds up on the side of the stem that is away from the light source and inhibits growth. It builds up on the side of the stem that is away from the light source and inhibits growth. It builds up on the side of the stem that faces the light source and inhibits growth. It builds up on the side of the stem that faces the light source and inhibits growth. It builds up on the side of the stem that is away from the light source and stimulates growth. It builds up on the side of the stem that is away from the light source and stimulates growth. It builds on the side of the stem that faces the light source and stimulates growth.

Answer 1

The correct response is: **It builds up on the side of the stem that is away from the light source and stimulates growth.**

Auxin is a plant hormone that promotes elongation of cells on the darker side of the plant, causing the plant to bend towards the light source (a phenomenon known as phototropism).