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Date November 2020 Marks available 1 Reference code 20N.3.SL.TZ0.5
Level Standard level Paper Paper 3 Time zone TZ0 / no time zone
Command term Draw Question number 5 Adapted from N/A

Question

The diagram shows rays of light entering the eyes from point Q in the right visual field.

Draw a ray of light entering the left eye from point P. 

[1]
a.

Information about the light from P entering the left eye is processed in the brain.

State what region of the brain would process the information.

[1]
b.i.

Information about the light from P entering the left eye is processed in the brain.

State the side of the brain that would process the information.

[1]
b.ii.

State the type of cell in the retina which directly transmits impulses through the optic nerve to the brain.

[1]
c.

Markscheme

Any straight line from P passing through the lens to the retina of left eye.

 

a.

visual cortex/occipital lobe;

b.i.

right;




b.ii.

ganglion (cell);



c.

Examiners report

This question on the eye was well answered though there was some confusion between ganglion and bipolar cells.

a.
[N/A]
b.i.
[N/A]
b.ii.
[N/A]
c.

Syllabus sections

Option A: Neurobiology and behaviour » Option A: Neurobiology and behaviour (Core topics) » A.2 The human brain
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Option A: Neurobiology and behaviour » Option A: Neurobiology and behaviour (Core topics)
Option A: Neurobiology and behaviour

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