How does auxin affect the growth of plant stems?(1 point)

Responses

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 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 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.

1 answer

The correct response is:

It builds up on the side of the stem that is away from the light source and stimulates growth.

This process is known as phototropism, where auxin is unevenly distributed in the plant, causing the cells on the shaded side to elongate more than those on the light-exposed side, resulting in the stem bending toward the light.