Question

What does phototropism mean? Negative and positive phototropisn

Answer 1

When the growth of the plant is in the direction of light as a stimuli.

Positive is stem

Negative is root.

Answer 2

phototropism means the movement of plant body parts toward light. the stem is positive phototropic because it moves towards the source of light, the sun and the roots are negative phototropic because it grows in opposite direction to the source of light.

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