Coordination and Response
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Nervous control in humans
SubtopicNervous control in humans under Coordination and Response for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
In the human eye, what happens to the pupil when moving from a dark room into bright sunlight?
A.It dilates to let in more light
B.It stays the same size
C.It constricts to protect the retina from damage
D.The lens becomes thinner
- 2.
Which of the following is an example of an involuntary reflex action?
A.Picking up a pencil to write
B.Withdrawing a hand from a hot surface
C.Deciding to kick a football
D.Waving at a friend
- 3.
The diagram shows the structure of a typical motor neurone. What is the function of the part labeled C?
A.To receive impulses from other neurones
B.To produce neurotransmitters
C.To insulate the axon and speed up impulse transmission
D.To control the activities of the cell
Download the worksheet for Coordination and Response - Nervous control in humans to practice offline. It includes additional chapter-level practice questions.
Sense organs (The Eye)
SubtopicSense organs (The Eye) under Coordination and Response for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
In the diagram provided, which label represents the part of the eye that refracts light as it first enters?
A.Label A
B.Label B
C.Label C
D.Label D
- 2.
What is the primary function of the optic nerve?
A.To focus light onto the back of the eye
B.To carry nerve impulses from the retina to the brain
C.To protect the inner layers of the eye
D.To change the shape of the lens during accommodation
- 3.
Which structure in the eye contains the light-sensitive receptor cells known as rods and cones?
A.Choroid
B.Sclera
C.Retina
D.Vitreous humour
Download the worksheet for Coordination and Response - Sense organs (The Eye) to practice offline. It includes additional chapter-level practice questions.
Hormones in humans
SubtopicHormones in humans under Coordination and Response for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
When adrenaline is released into the bloodstream, what is one of its immediate effects on the eyes?
A.The pupils constrict to protect the retina from light
B.The pupils dilate to allow more light to enter the eyes
C.The tear glands produce more fluid to lubricate the cornea
D.The lens becomes more convex to focus on distant objects
- 2.
How are hormones typically transported from the endocrine glands to their target organs?
A.Through the alimentary canal
B.Along the axons of motor neurones
C.Dissolved in the blood plasma
D.Via specialized hormone ducts
- 3.
Which gland is responsible for the secretion of the hormone adrenaline?
A.Pancreas
B.Adrenal gland
C.Pituitary gland
D.Testes
Download the worksheet for Coordination and Response - Hormones in humans to practice offline. It includes additional chapter-level practice questions.
Homeostasis
SubtopicHomeostasis under Coordination and Response for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
What is the primary effect of the hormone insulin on the liver?
A.It stimulates the conversion of glucose into glycogen
B.It stimulates the breakdown of glycogen into glucose
C.It increases the rate of protein synthesis
D.It triggers the release of digestive enzymes
- 2.
When the body temperature rises above the set point, which response helps to transfer more heat to the environment?
A.Vasoconstriction of skin arterioles
B.Increased rate of shivering
C.Erection of body hairs to trap air
D.Increased production of sweat
- 3.
Which organ is responsible for monitoring the concentration of glucose in the blood?
A.Liver
B.Kidney
C.Pancreas
D.Brain
Download the worksheet for Coordination and Response - Homeostasis to practice offline. It includes additional chapter-level practice questions.
Tropic responses in plants
SubtopicTropic responses in plants under Coordination and Response for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
If a plant is placed in a box with a hole on one side, allowing light to enter from only that direction, what will happen to the shoot?
A.It will grow away from the hole
B.It will grow straight upwards
C.It will stop growing
D.It will bend towards the hole
- 2.
Which of these statements correctly describes a 'positive' tropic response?
A.The plant grows away from the stimulus
B.The plant grows towards the stimulus
C.The plant stops growing when it hits the stimulus
D.The plant grows at a right angle to the stimulus
- 3.
In which part of a plant shoot is the hormone auxin primarily produced?
A.The tip of the shoot
B.The base of the stem
C.The surface of the leaves
D.The root hair cells
Download the worksheet for Coordination and Response - Tropic responses in plants to practice offline. It includes additional chapter-level practice questions.