WorksheetsIGCSE Chapter 14 Coordination and Response
Total questions: 25
Worksheet time: 14mins
The diagram shows an iris and a pupil in different light conditions.
Which characteristic of living organisms is this an example of?
growth
movement
excretion
sensitivity
What part of the eye contains light receptors?
(a)
Which row shows the effects of adrenaline secretion?
A
B
C
D
A person touches a sharp object.
The person immediately pulls their hand away.
Which row shows the correct description of the term?
A
B
C
D
What structure controls the amount of light entering the eye?
(a)
A person touches a sharp object.
The person immediately pulls their hand away.
Which row shows the correct description of the term?
A
B
C
D
Which structure focuses light on the retina?
lens
cornea
iris
optic nerve
The diagrams show three types of neurones.
Which sequence shows the direction that impulses will travel during a reflex action?
C M N L D N M L
L --> M --> N
M --> L --> N
M --> N --> L
N --> M--> L
What part of the eye detects red light?
(a)
The diagram shows a reflex arc in a human nervous system.
The person’s finger has just made contact with a sharp object.
Which part is the motor neurone?
A
B
C
D
The diagram shows a reflex action when a person touches a hot object and pulls their hand away.
Which letter correctly identifies a structure?
F is called the motor neurone.
G is called the motor neurone.
H is called the receptor.
E is called the effec tor.
The diagram shows a section through a human eye.
Which structure changes shape in response to adrenaline?
A
B
C
D
What is the name of the junction between two neurones?
(a)
Changes in light intensity cause changes in the diameter of the pupil in the eye.
Which rows show the pupil reflex?
1 and 3
1 and 4
2 and 3
2 nd 4
What is the function of the optic nerve?
to carry impulses from the retina to the brain
to carry impulses from the brain to the retina
to carry light from the retina to the brain
to carry light from the brain to the retina
Which structure transfers information to the central nervous system?
sensory neurone
effector
motor neurone
relay neurone
What part of the eye focuses light?
(a)
In which conditions do the leaves of a green plant respire.
What is the sequence of nerve cells through which an impulse passes during a reflex action?
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?
A
B
C
D
The diagram shows the human nervous system.
Which letter indicates a part of the central nervous system?
A
B
C
D
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?
A
B
C
D
The diagram shows a neurone carrying an impulse.
Which row describes the type of neurone and the direction of impulse?
A
B
C
D
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.
Which diet will cause the liver to produce the most urea?
high carbohydrate, low fat
high fat, high fibre
high fat, low protein
high protein, low carbohydrate
What is the other term for the ball of capillaries inside the bowman's capsule?
(a)
