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CIE · IGCSE · Biology

Plant nutrition (photosynthesis)
Practice Questions

20 CIE IGCSE Biology questions on Plant nutrition (photosynthesis), each with instant feedback and a full examiner-style mark scheme.

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✨ Revision guide includes key terms, worked examples and exam technique for Plant nutrition (photosynthesis).

Try 2 sample questions on Plant nutrition (photosynthesis)

Question 1 · 1 mark · Difficulty 1/3

Which of the following is the correct word equation for photosynthesis?

  1. A) Carbon dioxide + water → glucose + oxygen
  2. B) Glucose + oxygen → carbon dioxide + water
  3. C) Carbon dioxide + glucose → oxygen + water
  4. D) Water + oxygen → glucose + carbon dioxide
Show answer & explanation
✓ Answer: AA) Carbon dioxide + water → glucose + oxygen
Photosynthesis uses carbon dioxide and water, in the presence of light and chlorophyll, to produce glucose and oxygen. Option B is the word equation for aerobic respiration, a common student confusion.
Question 2 · 1 mark · Difficulty 1/3

Which part of the leaf is most specialised for photosynthesis and contains the greatest density of chloroplasts?

  1. A) Lower epidermis
  2. B) Spongy mesophyll
  3. C) Palisade mesophyll
  4. D) Upper epidermis
Show answer & explanation
✓ Answer: CC) Palisade mesophyll
The palisade mesophyll cells are column-shaped and densely packed with chloroplasts, making them the primary site of photosynthesis. They are positioned near the upper surface of the leaf to maximise light absorption. The upper and lower epidermis lack chloroplasts and the spongy mesophyll has fewer chloroplasts and is mainly adapted for gas exchange.
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CIE IGCSE Biology: Plant nutrition (photosynthesis) FAQ

How many CIE IGCSE Biology questions on Plant nutrition (photosynthesis) are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Plant nutrition (photosynthesis) for CIE IGCSE Biology, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CIE paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CIE IGCSE students preparing for Biology?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Plant nutrition (photosynthesis) practice with other Biology topics or even switch to a totally different CIE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Plant nutrition (photosynthesis) questions aligned to the official CIE IGCSE Biology syllabus?
Every question is written against the published CIE IGCSE Biology specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CIE.
How is Plant nutrition (photosynthesis) typically tested on CIE IGCSE Biology papers?
Plant nutrition (photosynthesis) appears across multiple question types on real CIE IGCSE Biology papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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