OCR A Level Biology B (Advancing Biology)

OCR A Level Biology B (Advancing Biology) Photosynthesis, Food Production and Management of the Environment Exam Questions

Free OCR A Level Biology B (Advancing Biology) exam questions on Photosynthesis, Food Production and Management of the Environment, with mark schemes. Covers the light-dependent and light-independent reactions, limiting factors and food production.

Photosynthesis, Food Production and Management of the Environment exam questions

1 question pack of real past exam questions with its mark scheme. Answer every question without notes, then mark your answers line by line against the mark scheme.

4.3.1 Photosynthesis, Food Production and Management of the EnvironmentQuestions and mark scheme
A Level Biology Flashcards StemUp mark scheme flashcards A Level Biology Flashcards Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Pick your exam board, then test yourself with the questions on this page. View flashcards

About OCR A Level Biology B (Advancing Biology) Photosynthesis, Food Production and Management of the Environment

This topic links photosynthesis to farming and the environment.

What you need to know

  • Light-dependent stage Photolysis, ATP and reduced NADP.
  • Calvin cycle RuBP, GP, TP and rubisco.
  • Limiting factors Light, CO₂ and temperature; greenhouse management.
  • Food production Agriculture and environmental impacts.

Common mistakes in Photosynthesis, Food Production and Management of the Environment

  • Saying the Calvin cycle works in the dark only.
  • Confusing GP and TP.
  • Ignoring limiting factor interactions.

Try three Photosynthesis, Food Production and Management of the Environment exam-style questions

1. Name the enzyme that fixes CO₂. (1 mark)

Show the mark scheme answer

Rubisco.

2. Explain why raising CO₂ increases yield in greenhouses. (2 marks)

Show the mark scheme answer

CO₂ is often limiting (1), so more is fixed in the Calvin cycle (1).

3. State the products of photolysis. (1 mark)

Show the mark scheme answer

Protons, electrons and oxygen.

Photosynthesis, Food Production and Management of the Environment FAQs

What does this topic cover?

Photosynthesis, limiting factors and food production.

Which practical links here?

Chromatography of pigments or measuring photosynthesis rate.

What is compensation point?

When photosynthesis rate equals respiration rate.