| Date | May 2017 | Marks available | 1 | Reference code | 17M.3.SL.TZ2.7 |
| Level | Standard level | Paper | Paper 3 | Time zone | Time zone 2 |
| Command term | State | Question number | 7 | Adapted from | N/A |
Question
The diagram shows a photoreceptor and an olfactory receptor. The arrows show the direction of the stimulus.
State the name of the photoreceptor shown.
[1]
a.
Distinguish between a photoreceptor and an olfactory receptor.
[2]
b.
Markscheme
rod
a.
b.
Examiners report
[N/A]
a.
[N/A]
b.
Syllabus sections
Option A: Neurobiology and behaviour » Option A: Neurobiology and behaviour (Core topics) » A.3 Perception of stimuli
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