WorksheetsIGCSE 0645 B9.1 9.2
Total questions: 25
Worksheet time: 13mins
The diagram shows a cell.
What type of cell is shown?
ciliated cell
motor neurone
relay neurone
sensory neurone
The diagram shows a neurone carrying an impulse.
Which row describes the type of neurone and the direction of impulse?
Which choice describes the type of neurone and the direction of impulse?
type of neurone = motor; direction of impulse = towards the spinal cord
type of neurone = motor; direction of impulse = away from the spinal cord
type of neurone = sensory; direction of impulse = towards the spinal cord
type of neurone = sensory; direction of impulse = away from the spinal cord
The diagram shows a section through part of the human eye.
When a person looks at an object which is close to their eye, which of the following takes place?
suspensory ligaments slacken; lens becomes fatter
suspensory ligaments slacken; lens becomes thinner
suspensory ligaments tighten; lens becomes fatter
suspensory ligaments tighten; lens becomes thinner
A bright light suddenly shines into a person’s eyes.
What happens?
The lenses become more concave.
The lenses become more convex.
The pupils become larger.
The pupils become smaller.
The diagram shows the human nervous system.
Which letter indicates a part of the central nervous system?
A
B
C
D
The diagram shows the muscles which control the size of the pupil in an eye.
How do the muscles make the pupil larger?
circular muscles contract; radial muscles contract.
circular muscles contract; radial muscles relax.
circular muscles relax; radial muscles contract.
circular muscles relax; radial muscles relax.
Which list describes the correct sequence of a simple reflex arc?
A receptor, relay neurone, motor neurone, sensory neurone, effector
B receptor, relay neurone, sensory neurone, motor neurone, effector
C receptor, sensory neurone, motor neurone, relay neurone, effector
D receptor, sensory neurone, relay neurone, motor neurone, effector
The diagram shows a simple reflex arc.
Which labelled part is the sensory neurone?
A
B
C
D
Some structures in the eye are listed.
1 cornea
2 iris
3 lens
4 retina
Which structures contain light receptors?
1, 2 and 3
2, 3 and 4
2 and 4 only
4 only
Which statement about light receptors in the retina of a normal human eye is correct?
The cones only work in dim light
The rods are found in the fovea.
The cones can detect colours of light
There are three types of rod.
How can we best describe a nerve impulse?
An electrical signal that passes along nerve cells called neurones
A chemical signal that is transferred to an electrical signal
An electrical charge that travels in nerve endings
Brain's response to an unfavourable change
What is CNS?
Central Neurone System
Brain and spinal cord
Peripheral neurones
Synapses that connect neurones
What type of neurone is shown on this picture as green?
Sensory
Relay
Motor
Synapse
What type of neurone is shown on this image as purple?
Sensory
Motor
Relay
Synapse
How does lens help us see objects that are far?
It stays the same
It becomes fatter
It becomes flatter
It becomes more spherical
What is the job of optic nerve?
To carry nerve impulses to the brain
To convert light to electrical signal
To react to too much light
To help bending light
What do we refer to when we say "accommodation"?
How eye is adapted for converting light
How eye is protected from too much light
How eye reacts to too little light
How eye is adapted to see near or far
The diagram shows a section of a human eye. Which parts receives impulses from motor neurones?
A
B
C
D
Which area/s of the retina has NO rods
Fovea
General retina surface
Blind spot
Which area/s of the retina has NO cones?
Fovea
General retina surface
Blind spot
Any changes which can trigger responses is known as
Receptor
Stimulus
Cofactor
Effector
