WorksheetsNeurones and Synapse 9TH IGCSE MSM
Total questions: 53
Worksheet time: 1hrs 4mins
Neurotransmitters are released from the
Dendrites
Post-synaptic neuron
Presynaptic neuron
Schwann Cells
The location of neurotransmitters
axon terminals
dendrites
Schwann cells
cell body
Z
Axon Terminal Button
Neurotransmitters
Dendrite
Synapse
X
Axon Terminal Button
Neurotransmitters
Dendrite
Synapse
The action potential arrives at the ____ and depolarizes the ____ membrane.
Axon terminal, pre-synaptic
Axon terminal, post synaptic
pre-synaptic, axon terminal
post synaptic, axon terminal
How does neurotransmitter cross the synaptic cleft?
exocytosis
simple diffusion
carrier mediated transport
osmosis
The blue nerve in the image represents a
sensory neurone
motor neurone
relay neurone
In this image, the stimulus is ___A___ and the response is ___B___
A = Arm muscle contraction; B = Sight of flame
A = Hot finger; B = Arm muscle contraction
A = Sight of flame; B = Arm muscle contraction
A = Arm muscle contraction; B = Hot finger
Which of the following is NOT TRUE about the synapse?
At the synapse, neurotransmitters are released at the postsynaptic membrane.
At the synapse, chemical signals are converted into electrical signals.
Small gap between neuron is called synaptic cleft
Neurotransmitter binds to ligand-gated ion channel on post-synaptic membrane
What is a nerve impulse?
Your body's reaction to a certain event.
An electric signal that passes through neurons.
A message passed through the blood.
Electrical signal created in the brain.
What is the region where nerve cells meet called?
Synapse
Cleft
Junction
Axon terminal
Synapse is a junction that allows the communication between:
neuron and neuron
neuron and muscle
neuron and gland
all the above answers
What is the nature of the nervous message at the level of synaptic cleft?
Chemical
Electrical
Mechanical
What is another name for a nerve cell?
Axon
Dendron
Neuron
Schwann cell
Another name for a nerve impulse is
Electrical signal
Action potential
Neurotransmitter
Axon terminal
Which letter represents a neurotransmitter?
(a)
Which letter represents a vesicle?
(a)
Which letter represents a neurotransmitter receptor?
(a)
Which number represents the post-synaptic membrane?
(a)
Which number represents the pre-synaptic membrane?
(a)
Which letter OR number represents the axon terminal?
(a)
A nerve impulse is transmitted in which direction
1 to 2 to 3
3 to 2 to 1
Nucleus
Cell Body
Axon
Node of Ranvier
Nucleus
Cell Body
Axon
Node of Ranvier
Nucleus
Cell Body
Axon
Node of Ranvier
Dendrites
Axon Terminals
Myelin Sheath
Schwann Cells
Dendrites
Axon Terminals
Myelin Sheath
Schwann Cells
Dendrites
Axon Terminals
Myelin Sheath
nuclei
What does the neuron's Myelin Sheath do?
Controls the actions of the neuron
Produces food for the neuron
Carries information from the cell body to other neurons
Surrounds and insulates the axon
What do Dendrites do?
Receives information from other neurons via neurotransmitters
Produces fatty tissue for the Myelin Sheath
Sends information to the next cell
Controls the speed of electrical signal through the axon
What do Axon Terminals do?
Receives information from other neurons
Produces fatty tissue for the Myelin Sheath
Sends information to the next cell
Controls the speed of electrical signal through the axon
What type of neuron is represented on the image?
Motor Neuron
Interneuron
Sensory Neuron
What do Schwann Cells do?
Intakes information from other neurons
Produces fatty tissue for the Myelin Sheath
Sends information to the next cell
Controls the speed of electrical signal through the axon
What do Nodes of Ranvier do?
Intakes information from other neurons
Produces fatty tissue for the Myelin Sheath
Sends information to the next cell
Controls the speed of electrical signal through the axon
Which is the correct order/sequence of the parts of a neuron in a neural impulse?
What type of neurone is neurone A?
Sensory
Neurone
Relay
Neurone
Motor
Neurone
The diagram shows the sequence of structures involved in a human response to a change in temperature. What is represented by box X?
Bloodstream
Central Nervous System
Digestive System
Endocrine System
Which structures make up the nervous system?
Effectors
Receptor
Stimuli
Effectors
Impulses
Spinal cord
Impulses
Muscles
Nerve
Brain
Nerves
Spinal cord
The diagram shows a neurone.
Which structures could be found at X and Y?
X = brain
Y = intestine
X = brain
Y = leg
X = eye
Y = hand
X = skin
Y = spinal cord
Which of these contain relay neurones?
Effector
Receptor
Spinal cord
Stimulus
The diagram shows a neurone carrying an impulse.
Which row describes the type of neurone and the direction of impulse ?
A
B
C
D
What is the correct sequence of
structures involved in a reflex action?
A
B
C
D
Below are two statements about how neurones work :
1 - Neurotransmitters carry a nerve impulse along a neurone.
2 - An electrical charge carries a nerve impulse across a synapse.
Which of these statements is/are true ?
1 only
2 only
1 and 2
Neither
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
The coordinator is always:
Sensory neurone
Motor neurone
Central nervous system (CNS)
A receptor
What is the purpose of neurotransmitters at a synapse?
To speed up the nerve impulse
To link sensory to motor neurones
To bind to receptors and cause a new nerve impulse in the postsynaptic cell
To insulate the axon and myelin sheath
Motor neurones synapse with:
Only sensory neurones
Only relay neurones
Senory and relay neurones
Relay neurones and effectors
