Skip to content
MathsGenie logo
Open app

Course home

  1. GCSE
  3. Biology Edexcel
  5. Question bank

The eye

EasyMediumHard
12345678910111213141516171819202122232425262728
Question 23

The diagram shows a cross-section of the human eye with structures PPP, QQQ, RRR, and S S\,S labelled.

Cross-section of the human eye

When the eye accommodates to focus on a near object, which of the labelled structures contracts, and what is the resulting state of structure QQQ?

Structure PPP contracts, making structure QQQ slack

Structure PPP contracts, making structure QQQ taut

Structure RRR contracts, making structure QQQ slack

Structure RRR contracts, making structure QQQ taut

The eye Questions

  1. GCSE
  2. /Biology
  3. /The eye