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Plant hormones server as a chemical messenger between cells and tissues. Auxin is a plant hormone that causes the cell on the shady side of a plant shoot to elongate. The response enabled by auxins is known as

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Answer:

The response enabled by auxins, specifically the elongation of cells on the shady side of a plant shoot, is known as phototropism.

Step-by-step explanation:

Phototropism is a plant's response to light, in which the plant grows towards the source of light. Auxins are produced in the apical meristem of the plant, and they are transported downwards through the stem towards the roots. When light shines on a plant, auxins accumulate on the shaded side, causing the cells on that side to elongate more than the cells on the sunny side. This results in the plant bending towards the light source, allowing it to maximize its exposure to light for photosynthesis. Auxins also have other functions in plant growth and development, such as promoting root growth and differentiation and inhibiting lateral bud growth.

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