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 on the side of the stem that faces the light source and stimulates growth.
It builds on the side of the stem that faces 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 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 faces the light source and inhibits growth.
It builds up on the side of the stem that faces the light source and inhibits growth.
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1 answer
The correct answer 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 cell elongation, and it accumulates on the side of the stem that is away from the light. This differential growth causes the plant to bend towards the light source, a phenomenon known as phototropism.
