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WorksheetsGrade 9 Synapse & Eyes
Total questions: 10
Worksheet time: 5mins
Which picture shows the structure of synapse?
What is the correct order of events that occur at a synapse ?
P – Neurotransmitter diffuses across the synapse
Q – A nervous impulse arrives at the synaptic knob
R – Neurotransmitter binds to receptors in the cell membrane
S – Vesicles release neurotransmitter into the synapse
R => S => P => Q
Q => S => P => R
Q => R => S => P
S => P => R => Q
Identify neurotransmitter and synaptic cleft, respectively.
1 and 6
2 and 6
3 and 7
5 and 7
Which one is the correct definition of a synapse?
A structure that connect two neurones.
A structure that detect a stimulus.
A structure that relay the impulse from sensory neurone to motor neurone.
A structure that produce response.
Name structure number 4
Pre-synaptic neurone
Post-synaptic neurone
Synapse
Receptor
Identify cornea, pupil, and lens
A, B, C
E, F, G
D, E, F
G, H, I
Identify the layer that contains light receptors.
A
B
D
E
Which one is the correct question?
In low light, pupil constricts.
In low light, pupil dilates.
In bright light, radial muscles contract.
In bright light, circular muscle contract.
Which one is correct?
In distant vision, cilliary muscle relaxes, the lens becomes thinner.
In distant vision, cilliary muscle contracts, the lens becomes thicker.
In near vision, cilliary muscle contracts, the lens becomes thinner.
In near vision, cilliary muscle relaxes, the lens becomes thicker.
Total blindness can be the result of which statement? (choose 2)
Image of the object falls on no.6
The accommodation of no.4 decreases.
The ability of no. 2 to contract is decreasing.
Structure no.7 is damaged.
