A student is looking at a tree far away. She then looks down to read a book in her hand.
.1
Describe the changes in her eye that let her focus on the book.
[3 marks]
.2
Name 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
AQA Biology 8461
Spec and skills
Paper scope: Paper 2
Spec b4.5.2.3
Original practice question
Answer and supported method checks
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
AQA Biology 8461
Spec and skills
Paper scope: Paper 2
Spec b4.5.2.3
Original practice question
Answer and supported method checks
A ray diagram for a person's eye shows light from a distant object meeting at a point in front of the retina.
.1
Which defect of vision does this person have?
[1 mark]
.2
Which type of spectacle lens corrects this defect?
[1 mark]
.3
Explain how the spectacle lens lets the person see distant objects clearly.
[2 marks]
3 marksHigher4.5.2.2 The brain
AQA Biology 8461
Spec and skills
Paper scope: Paper 2
Spec b4.5.2.2
Original practice question
Answer and supported method checks
A surgeon is asked to remove a small tumour deep inside a patient's brain.
Explain why investigating and treating disorders of the brain is very difficult.
[3 marks]
3 marksHigher4.5.2.2 The brain
AQA Biology 8461
Spec and skills
Paper scope: Paper 2
Spec b4.5.2.2
Original practice question
Answer and supported method checks
Neuroscientists have mapped regions of the brain to particular functions.
.1
Which method lets scientists see which brain regions are active without any surgery?
[1 mark]
.2
Describe how studying patients with brain damage helps scientists find the function of a region.
[2 marks]
6 marksFoundation and Higher4.5.2.3 The eye
AQA Biology 8461
Spec and skills
Paper scope: Paper 2
Spec b4.5.2.3
Original practice question
Answer and supported method checks
A student measured the diameter of a person's pupil in a dim room and in bright light. In dim light the pupil diameter was 7 mm. In bright light it was 2 mm.
.1
Calculate the area of the pupil in dim light. Use πr2 and give your answer to 3 significant figures.
[2 marks]
.2
Calculate how many times larger the area of the pupil is in dim light than in bright light.
[2 marks]
.3
Explain why the pupil is larger in dim light.
[2 marks]
3 marksFoundation and Higher4.5.2.3 The eye
AQA Biology 8461
Spec and skills
Paper scope: Paper 2
Spec b4.5.2.3
Original practice question
Answer and supported method checks
The structures of the eye are related to their functions.
.1
What do the suspensory ligaments do?
[1 mark]
.2
Explain how the structure of the cornea and of the sclera each suit their function.
