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Edexcel IGCSE Biology 2.91 Eye Structure and Function Questions

Practise labelling eye structures and explaining how the cornea, lens, retina and iris affect light entry and vision quality.

Syllabus
First assessment 2019
Course
Biology 4BI1

Exam points

  • identify the cornea, lens and retina on eye diagrams and link each structure to its function
  • explain cataracts or iris pigment effects using light entry, retina stimulation and blurred vision
  • interpret field-of-view diagrams to explain depth perception in predators with forward-facing eyes

Edexcel IGCSE Biology 2.91 Eye Structure and Function Questions question 1

[Maximum number: 1]

The diagram shows the structure of a human eye.

Figure for Question Edexcel IGCSE Biology 2.91 Eye Structure and Function Questions question 1 — Edexcel IGCSE Biology

Which of these is the structure labelled X ?

A

conjunctiva

B

cornea

C

lens

D

retina

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