WAEC (WASSCE) Biology · Plant and animal nutrition

Photosynthesis: WAEC Biology Past Questions and Answers

What the WAEC syllabus covers in Photosynthesis

Our summary: How green plants use light to make food, what they need for it, and how to show it happens.

  • Process of photosynthesis and its chemical equation
  • Light and dark reactions (Biochemical nature of photosynthesis, photoactivation of chlorophyll resulting in the conversion of light energy to ATP and the reduction of NADP (biochemical detail is not required).)
  • Materials and conditions necessary for photosynthesis
  • Evidence of photosynthesis (The translocating and storage of excess food as a result of photosynthesis should be mentioned. Test for starch in green leaves should be carried out. Fate of the products of photosynthesis should be mentioned.)

Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)).

WAEC (WASSCE) Biology questions on Photosynthesis

  1. WAEC 2024Which of the following events does not occur in the light reaction stage of photosynthesis?
  2. WAEC 2024The rate of photosynthesis decreases in a wilted herbaceous plant because the
  3. WAEC 2023Which of the following processes does not occur during photosynthesis?
  4. WAEC 2022An evidence of the occurrence of photosynthesis in an experiment is the?
  5. WAEC 2022In which of the following structures is simple sugar produced?
  6. WAEC 2021Which of the following factors is not necessary for photosynthesis?
  7. WAEC 2021The process that takes place at the light stage of photosynthesis is?
  8. WAEC 2020The first stable product of photosynthesis is
  9. WAEC 2020Oxygen comes out of the stomata during photosynthesis through the process known as
  10. WAEC 2019Which of the following forms of energy is utilized during photosynthesis?
  11. WAEC 2018The source of energy required by plants during food production is
  12. WAEC 2017Which of the following processes are associated with photosynthesis? I. Energy from sunlight is absorbed II. Carbon dioxide is evolved III. Oxygen is given off…
  13. WAEC 2016The steps below are involved in the testing of a leaf for starch. Study them carefully and answer the question: I. Decolorize them II. Dip decolorized leaf in…
  14. WAEC 2016The steps below are involved in the testing of a leaf for starch. Study them carefully and answer the question: I. Decolorize them II. Dip decolorized leaf in…
  15. WAEC 2015Which of the following processes removes carbon (IV) oxide from the atmosphere?
  16. WAEC 2013The process by which plants manufacture food from carbon dioxide and water using energy from the sun is called
  17. WAEC 2012The major role played by accessory pigments during photosynthesis is to?
  18. WAEC 2012The main raw materials required for photosynthesis are
  19. WAEC 2011The conversion of glucose to starch in the leaf during the day principally
  20. WAEC 2011The process whereby electrons are emitted from chlorophyll and returned to it unchanged is known as?
  21. WAEC 2010In testing for starch in a leaf, the leaf is first boiled in water for about a minute so that the

Years with Photosynthesis questions in DeeepSolve's question bank

From the past questions DeeepSolve holds, not a count of everything the exam body has set.

  • 2024
  • 2023
  • 2022
  • 2021
  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015
  • 2013
  • 2012
  • 2011
  • 2010