WorksheetsHomeostasis + Coordination & Response
Total questions: 20
Worksheet time: 20mins
The graphs show how four different conditions in the body may change with time. In which graph is/are the condition(s) being controlled by negative feedback?
Which response is not due to homeostasis?
enlargement of iris
increase in glucose production when blood glucose level is low
increase in permeability of collecting duct of kidney tubules
shivering in cold weather
Which statement about voluntary actions is not true?
Relay neurones are always involved in voluntary actions.
Voluntary actions always involve transmission of nerve impulses to or from the spinal cord.
Voluntary actions are always coordinated by the brain.
Voluntary actions may not involve sensory neurons.
A finger that touches a hot object is quickly taken away from the source of heat. What is the role of relay neurons in this response?
to carry nerve impulses within the spinal cord
to generate nerve impulses in the receptors of the finger
to link the sense organs to the sensory neurones
to pass nerve impulses to the effectors
The diagram shows the cross-section of the spinal cord of a rat.
In which scenario will the rat still be able to move?
spinal cord cut at Y and electrical stimulation applied at P
spinal cord cut at Y and electrical stimulation applied at R
spinal cord cut at Z and electrical stimulation applied at Q
spinal cord cut at Z and electrical stimulation applied at S
Which changes take place in the iris of the eye when a person moves quickly from darkness into bright light?
A
B
C
D
Which part of the eye causes the greatest refraction of light?
aqueous humour
cornea
lens
vitreous humour
Paul looked out of the classroom window of the class across the corridor to look at Sam who was waiting for him. He looked at the watch on his wrist to check the time before giving his teacher a stare, impatiently waiting for him to end the lesson.
Which diagram shows the sequence of the changes in the shape of the lens of his eyes?
Which structure in the eye is not correctly linked to its function?
choroid - provide oxygen and nutrients to the eyeball
fovea - region where optic nerve leaves the eye
rectus muscle - control movement of eyeball
sclera - protects eyeball from mechanical damage
What substance is the urine of a person suffering from diabetes mellitus likely to contain?
amino acids
fatty acids
glucose
proteins
Which parts of the skin are involved in temperature regulation?
sweat glands, temperature receptors and blood vessels
sweat glands and temperature receptors only
sweat glands and blood vessels only
temperature receptors and blood vessels only
The diagram shows some of the structures seen in a section through human skin.
What is the function of structure X?
to cause capillaries to constrict
to detect changes in temperature
to receive impulses from the central nervous system
to stimulate sweat glands to release sweat
Which statement about voluntary actions is not true?
Relay neurones are always involved in voluntary actions.
Voluntary actions always involve transmission of nerve impulses to or from the spinal cord.
Voluntary actions are always coordinated by the brain.
Voluntary actions may not involve sensory neurones.
In which processes are the brain involved in after a person has touched a hot object?
receiving information, sensing pain + initiating withdrawal response
receiving information, sensing pain only
initiating withdrawal response only
none of the above
The diagram shows a section of a human eye. Which parts receives impulses from motor neurones?
A
B
C
D
Which structures does light pass through when it is focused on the retina?
cornea, lens and sclera
cornea and lens only
cornea and sclera only
lens and sclera only
What is the function of the choroid?
control movement of the eyeball
protects eyeball from mechanical damage
provide nutrients to the eyeball
refract light into the retina
A person is reading a book in dim light. Which row shows the state of the eye muscles?
A
A
B
C
D
Which row shows what causes adrenaline or insulin to be released, and the effect of this hormone on blood glucose concentration?
A
B
C
D
Which statement about nervous and endocrine control is not correct?
Both nervous and endocrine control are activated by stimuli.
Both nervous and endocrine control may be voluntary or involuntary.
Nervous control is usually localised while endocrine control may affect more than one target organ.
Nervous control produces faster responses than endocrine control.
