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4.1 Photosynthesis

4.1 Photosynthesis

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Question 5
H

Photosynthesis is an endothermic reaction.

a.

Explain what is meant by an endothermic reaction.

[1]
b.

Complete the balanced symbol equation for photosynthesis.

6CO2+6H2O→……⋯+……… 6\text{CO}_2 + 6\text{H}_2\text{O} \rightarrow \dots\dots\dots + \dots\dots\dots 6CO2​+6H2​O→……⋯+………
[2]
c.

A plant is sealed inside a glass tank in bright light. The concentration of carbon dioxide inside the tank falls during the first hour.

Explain why.

[3]
Markscheme

4.1 Photosynthesis Questions

  1. GCSE
  2. /Biology
  3. /4.1 Photosynthesis

54 exam-style questions on AQA GCSE Biology 4.1 Photosynthesis, covering 4.1.1 Photosynthetic reaction, 4.1.2 Rate of photosynthesis, and 4.1.3 Uses of glucose from photosynthesis. Each one has a worked solution and a mark scheme showing where the marks go.

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