Question

How do plants respond to changes in light intensity?

Answer 1

Plants respond to changes in light intensity through a process known as phototropism. When light intensity increases, plants may exhibit positive phototropism by growing towards the light source to maximize light absorption for photosynthesis. On the other hand, when light intensity decreases, plants may display negative phototropism by adjusting their growth patterns to seek out sources of light. Additionally, plants may regulate their pigment production and opening or closing of stomata in response to changes in light intensity to optimize photosynthesis and water conservation.

Answer 2

Plants respond to changes in light intensity through a process called photomorphogenesis. When light intensity decreases, plants may exhibit elongation of stems and leaves to reach for more light. On the other hand, when light intensity increases, plants may produce more chlorophyll and adjust their photosynthesis rate to optimize energy production. These responses are controlled by various photoreceptors in the plant cells that detect changes in light conditions.