Q26
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
The nerve cell can be distinguished from other cells of the body by the presence of :-
A.
Neuroplasm
B.
Neurolemma
C.
Mitochondria
D.
Neurites
Q27
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
Function of nervous tissue is :-
A.
Irritability or Excitability
B.
Sensitivity
C.
Elasticity
D.
Contraction
Q28
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
Which of the following processes occur only in animals ?
A.
Hormonal control
B.
Respiration
C.
Nervous control
D.
Nutrition
Q29
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
Which cell in our body is more than a feet long?
A.
Nerve cell
B.
Muscle cell
C.
Bone cell
D.
Gland cell
Q30
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
Which cell stop dividing after birth ?
A.
Epithelium
B.
Neuron
C.
Glial cells
D.
Liver
Q31
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
In which animal, nerve cell is present but brain is absent ?
A.
Sponge
B.
Earthworm
C.
Cockroach
D.
Hydra
Q32
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
Intercellular communication in multicellular organism occurs through -
A.
Nervous system only
B.
Digestive system only
C.
Respiratory system only
D.
Both nervous and endocrine system
Q33
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
Myelin sheath is derived from :
A.
Astrocytes cells
B.
Schwann cells
C.
Nerve cells
D.
All of these
Q34
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
Synaptic vesicles are found in –
A.
Presynaptic neuron
B.
Post synaptic neuron
C.
Synaptic cleft
D.
None of these
Q35
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
Nissl's granules are absent in :
A.
Axon
B.
Cyton
C.
Dendron
D.
Dendrites
Q36
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
In a myelinated neuron, two adjacent myelin sheaths are separated by gaps called :
A.
Nodes of Ranvier
B.
Synaptic cleft
C.
Synaptic knob
D.
Neural plate
Q37
Allen
1. NEURAL SYSTEM AND NEURAL TISSUE
MCQ
Nissl's granules are found in :
A.
Liver cells
B.
Nerve cells
C.
Kidney
D.
Heart
Q38
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
Chemical transmission of nerve impulses from one neuron to another at a synapse is by:-
A.
Cholesterol
B.
Acetylcholine
C.
Cholecystokinin
D.
ATP
Q39
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
Saltatory conduction occurs in :-
A.
Non-myelinated fibers
B.
Myelinated fibers
C.
Both of them
D.
None of them
Q40
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
When a nerve fibers is stimulated the inside of the membrane becomes :-
A.
Filled with acetyl choline
B.
Negatively charged
C.
Positively charged
D.
Neutral
Q41
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
"Jumping of the action potential" at the nodes of ranvier is known as :-
A.
Saltatory conduction
B.
Neuro transmission
C.
Recovery phase
D.
Active phase
Q42
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
Nerve impulses are generated by nerve fibers only when the membrane shall become more permeable to :-
A.
Adrenaline
B.
Phosphorus
C.
Sodium ions
D.
Potassium ions
Q43
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
Speed of impulse on nerves in mammals is :-
A.
1 meter/sec.
B.
100 meter/sec.
C.
1000 meter/sec.
D.
None of these
Q44
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
The functional connection between two neurons is called :-
A.
Synapse
B.
Synapsis
C.
Chiasma
D.
Chiasmata
Q45
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
Conduction of nerve impulse is :-
A.
Faster in non-myelinated fibres
B.
Faster in myelinated fibres
C.
No difference in the rate of conduction in myelinated & non-myelinated fibres
D.
None of the above
Q46
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
A short period during which a nerve is unable to conduct nerve impulse is called :-
A.
Synaptic delay
B.
Refractory period
C.
Resting potential
D.
Critical period
Q47
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
When the axons membrane is positively charged outside and negatively charged inside, then the condition is known as :-
A.
Action potential
B.
Resting potential
C.
Active potential
D.
Differential potential
Q48
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
The main function of acetylcholine is to :-
A.
Increase heart beat
B.
Help in synaptic transmission of nerve impulse
C.
Help in conduction of nerve impulse through axon
D.
Control reflex action
Q49
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
Depolarization of axolemma during nerve conduction takes place because of-
A.
Equal amount of Na⁺& K⁺ move out across axolemma
B.
Na⁺ move inside
C.
More Na⁺ outside
D.
None
Q50
Allen
2. NERVE IMPULSE CONDUCTION
MCQ
In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive :-
A.
K⁺ and Na⁺ out of the cell
B.
Na⁺ into the cell
C.
Na⁺ out of the cell
D.
K⁺ into the cell