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HomeAQA GCSE BiologyThe eye: structure, function and focusing
AQA · GCSE · Biology

The eye: structure, function and focusing
Practice Questions

15 AQA GCSE Biology questions on The eye: structure, function and focusing, 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 The eye: structure, function and focusing.

Try 2 sample questions on The eye: structure, function and focusing

Question 1 · 1 mark · Difficulty 1/3

Which part of the eye controls how much light enters by changing the size of the pupil?

  1. The iris
  2. The retina
  3. The cornea
  4. The optic nerve
Show answer & explanation
✓ Answer: AThe iris
The iris contains muscles that adjust the size of the pupil to control the amount of light entering the eye.
Question 2 · 1 mark · Difficulty 1/3

Light is focused onto which light-sensitive layer at the back of the eye?

  1. The retina
  2. The iris
  3. The lens
  4. The cornea
Show answer & explanation
✓ Answer: AThe retina
The retina contains light receptors; the image is focused on it and signals are sent along the optic nerve.
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20 questions · 25 min · free

AQA GCSE Biology: The eye: structure, function and focusing FAQ

How many AQA GCSE Biology questions on The eye: structure, function and focusing are there on Kramizo?
Kramizo currently has 15 exam-board-aligned practice questions on The eye: structure, function and focusing for AQA GCSE 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 AQA 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 AQA GCSE 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 The eye: structure, function and focusing practice with other Biology topics or even switch to a totally different AQA 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 The eye: structure, function and focusing questions aligned to the official AQA GCSE Biology syllabus?
Every question is written against the published AQA GCSE Biology specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real AQA 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 AQA.
How is The eye: structure, function and focusing typically tested on AQA GCSE Biology papers?
The eye: structure, function and focusing appears across multiple question types on real AQA GCSE 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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