AQA Biology 8461 · Paper 2 · 4.5.2.2, 4.5.2.3
The brain and the eye
3 marksFoundation4.5.2.2 The brain
The brain has different regions that carry out different functions.
.1Which region of the brain coordinates muscle activity and balance?
[1 mark] .2Which region of the brain controls unconscious activities such as the heartbeat?
[1 mark] .3Which region of the brain is responsible for memory, language and conscious thought?
[1 mark] 3 marksFoundation4.5.2.3 The eye
The eye is a sense organ containing receptors sensitive to light intensity and colour.
.1Which part of the eye contains the receptor cells that are sensitive to light?
[1 mark] .2What is the function of the iris?
[1 mark] .3Name the part of the eye that carries nerve impulses from the retina to the brain.
[1 mark] 4 marksFoundation and Higher4.5.2.3 The eye
A student is looking at a tree far away. She then looks down to read a book in her hand.
.1Describe the changes in her eye that let her focus on the book.
[3 marks] .2Name the process of changing the shape of the lens to focus on near or distant objects.
[1 mark] 6 marksFoundation and Higher4.5.2.3 The eye
A goalkeeper watches a ball kicked from the far end of the pitch until it arrives in front of her face.
Explain how her eye keeps the ball in focus, first when it is far away and then as it comes close.
[6 marks]4 marksFoundation and Higher4.5.2.3 The eye
A ray diagram for a person's eye shows light from a distant object meeting at a point in front of the retina.
.1Which defect of vision does this person have?
[1 mark] .2Which type of spectacle lens corrects this defect?
[1 mark] .3Explain how the spectacle lens lets the person see distant objects clearly.
[2 marks] 