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1.4 Photosynthesis

Question 2

In experiments investigating the rate of photosynthesis, a light source is placed at different distances ( $d$ ) from an aquatic plant.

Which of the following proportionalities correctly represents the relationship between light intensity ( $I$ ) and distance ( $d$ )?

$\propto d^2$

$\propto \frac{1}{d^2}$

$\propto \frac{1}{d}$

$\propto \sqrt{d}$

Markscheme

1.4 Photosynthesis Questions

GCSE
Biology
1.4 Photosynthesis

12 exam-style questions on OCR GCSE Biology 1.4 Photosynthesis, covering 1.4.1 Photosynthesisers as biomass producers, 1.4.2 Factors affecting the rate of photosynthesis, and 1.4.3 Limiting factors in photosynthesis. Each one has a worked solution and a mark scheme showing where the marks go.

1.4 Photosynthesis

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1.4 Photosynthesis

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Question 2

In experiments investigating the rate of photosynthesis, a light source is placed at different distances ( $d$ ) from an aquatic plant.

Which of the following proportionalities correctly represents the relationship between light intensity ( $I$ ) and distance ( $d$ )?

$\propto d^2$

$\propto \frac{1}{d^2}$

$\propto \frac{1}{d}$

$\propto \sqrt{d}$

Markscheme

1.4 Photosynthesis Questions

GCSE
Biology
1.4 Photosynthesis