Buat kuiz
masalah 1
pilihan
What are the TWO major divisions of the nervous system?
- Central NS and Peripheral NS
- Sensory NS and Motor NS
- Somatic NS and Autonomic NS
- Involuntary NS and Voluntary NS
Sihir Perempuan Penyihir
Ikut Turutan
Universiti
sains
COORDINATION REVISION 1
MEOR SYAZLAN
88
0
Larangan jawapan yang salah
Sembunyikan jawapan
public kuiz
masalah 2
jawapan pendek
The functional cell of nervous system is called
neuron
neurons
Neuron
Neurons
masalah 3
jawapan pendek
The resting membrane potential of axon's membrane is _____ mV
-70
- 70
masalah 4
pilihan
Which of these components are important for Resting Membrane Potential?
- sodium - potassium pump, pumps out 3 Na+ and pumps in 2K+
- more K+ diffuse out than Na+ diffuse into the axon
- voltage - gated ion channels remains close
- High concentration of anions in axon's cytoplasm
masalah 5
pilihan
In the presence of stimulus, _____ Voltage-gated ___ channel are open. Some Na+ diffuse ____ the axon. Membrane _________, until ______ potential , _____ mV.
- More: Na+ : into : slightly depolarise : treshold : -55
- Some : Na+ : into : slightly depolarise : treshold : -55
- Some : Na+ : out of : slightly depolarise : treshold : +35
- More: Na+ : out of : depolarise : treshold : +35
masalah 6
pilihan
During _____ phase of action potential, ____ voltage-gated Na+ channel are open. More ___ diffuse ____ the axon. Membrane _________, until _____ mV.
- rising : more : Na+ : into : depolarised : +35 mV
- rising : some: Na+ : into : depolarised : +35 mV
- falling: more : K+ : into : depolarised : +30 mV
- falling: more: K+ : out: repolarised : -70 mV
masalah 7
pilihan
During falling phase of action potential, voltage-gated _____ channel are open. ___ diffuse ____ the axon. Membrane _________, until _____ mV.
- K+ : K+ : out of : depolarised : -70
- Na+ : Na+ : out of : repolarised : -70
- Na+ : Na+ : into : depolarised : -70
- K+ : K+ : out of : repolarised : -70
masalah 8
pilihan
During ________ of action potential, ______voltage-gated K+ channel are open. More ____ diffuse ____ the axon. Membrane _________, until below -70 mV.
- undershoot : more : Na+ : out of : hyperpolarised
- undershoot : some: Na+ : into : hyperpolarised
- undershoot : more : K+ : out of : hyperpolarised
- undershoot : more : K+ : into : hyperpolarised
masalah 9
jawapan pendek
The gap where one neuron communicate with another neuron, using neurotransmitter is called
synapse
Synapse
masalah 10
pilihan
Explain synapse (1)
The action potential arrives at axon ____ of ___ neuron. The presynaptic membrane ____. This triggers the voltage – gated ___ channels to open.
- terminal : presynaptic : depolarised : Ca2+ :
- terminal: presynaptic : depolarised : Na2+ :
- terminal : postsynaptic : depolarised : Ca2+ :
- terminal : presynaptic : repolarised : Ca2+ :
masalah 11
pilihan
Explain synapse (2)
Ca2+ diffuse into the presynaptic membrane. Ca2+ promote the synaptic ___ to fuse with the ___ membrane. ___ is released into the synaptic cleft via __.
- vesicles : postsynaptic : neurotransmitter : exocytosis
- Cleft: presynaptic : neurotransmitter : endocytosis
- vesicles : postsynaptic : neurotransmitter : endocytosis
- vesicles : presynaptic : neurotransmitter : exocytosis
masalah 12
pilihan
Explain synapse (3)
The neurotransmitter binds to __ of ligand – gated __channels on the __synaptic membrane. Ion channels are opened. __ diffuse into postsynaptic membrane. __synaptic membrane __.
- receptor : ion : post : Na+ : post : depolarised.
- receptor : Na+: post : Na+ : post : depolarised.
- receptor : ion: post : K+ : post : depolarised.
- receptor : ion : post : Na+ : post : repolarised.
masalah 13
pilihan
Explain synapse (4)
__ __synaptic potential (EPSP) is generated. If the ___ is above threshold level, action potential is produced at __synaptic membrane.
- Excited : post : depolarization : post
- Excited : post : repolarization : post
- Excitatory : pre : depolarization : pre
- Excitatory : post : depolarization : post
masalah 14
pilihan
Explain synapse (5)
Neurotransmitter will be ___ by enzymes in synaptic __. Neurotransmitter will be also transported back ___ the __synaptic membrane, via ___ transport.
- degraded : vesicles: into : pre : active
- degraded : cleft : into : pre: passive
- degraded : cleft : into : pre : active
- produced : vesicles: into : pre : active
masalah 15
pilihan
Which of these are the similarities of impulse along axon and at synapse?
- Impulse are transmitted unidirectional
- Impulse is chemically transmitted
- Involves voltage – gated Ca2+ channel
- Involves the depolarisation of the membrane.
masalah 16
pilihan
Which of these are the criteria of impulse generated along the axon?
- chemically transmitted
- Impulse transmission is faster
- Does not involves BOTH voltage gated Na+ channels and voltage – gated K+ channel
- Excitatory Postsynaptic Potential (EPSP) is not generated.
- Does not involve receptor protein on ligand – gated ion channel
masalah 17
jawapan pendek
The plasma membrane of skeletal muscle cells is called
sarcolemma
Sarcolemma
masalah 18
jawapan pendek
The endoplasmic reticulum of skeletal muscle cells is called
sarcoplasmic reticulum
Sarcoplasmic reticulum
masalah 19
jawapan pendek
The cytoplasm of skeletal muscle cells is called
sarcoplasm
Sarcoplasm
masalah 20
pilihan
Which of these are the similarities between synapse and neuromuscular junction?
- Involves the depolarisation of the presynaptic membrane
- Involve the opening of voltage – gated Ca2+ channel on postsynaptic membrane
- Involve the fusion of synaptic vesicles with presynaptic membrane
- Neurotransmitter is released into synaptic cleft.
- Neurotransmitter binds to receptor on ligand – gated ion channel
Google Classroom Share