How does light intensity and distance affect the rate of photosynthesis? How do you know?

Light provides the energy needed for photosynthesis. Increasing the light intensity increases the rate of photosynthesis, provided plenty of carbon dioxide and water are available. ... This states that the intensity of light is inversely proportional to the square of the distance from the source.

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throwdolbeau throwdolbeau · Answer 2 · 2022-01-13T12:08:13+01:00

The factors affecting the rate of photosynthesis are:

1. Light:

Light provides the energy needed for photosynthesis.
Light intensity. Without enough light, a plant cannot photosynthesize very quickly - even if there is plenty of water and carbon dioxide.
Increasing the light intensity increases the rate of photosynthesis, provided plenty of carbon dioxide and water are available.

2. Distance:

There is an inverse relationship between distance and light intensity - as the distance increases, light intensity decreases.
This is because as the distance away from a light source increases, photons of light become spread over a wider area.

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