1.

    A neuron poisoned with tetrodotoxin (TTX) is stimulated. Which of the following would be observed?

    A

    Normal action potential generation

    B

    Delayed action potential generation

    C

    No action potential generated due to blocked Na+Na^+ channels

    D

    Hyperexcitability and spontaneous action potentials

    Question Tags
    📚 Subject:Zoology
    📑 Chapter:Neural Control And Coordination
    🎯Topic:Neuron As Structural And Functional Unit Of Neural System
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Neuron, Action Potential, Ion Channels, Neurotoxins

    Related Questions

    1.

    Which part of the neuron receives signals from other neurons?

    A

    Axon

    B

    Dendrites

    C

    Synapse

    D

    Myelin Sheath

    Question Tags
    📚 Subject:Zoology
    📑 Chapter:Neural Control And Coordination
    🎯Topic:Neuron As Structural And Functional Unit Of Neural System
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Neuron Structure, Signal Transmission

    2.

    Schwann cells, form a myelin sheath around the

    A

    Dendrite

    B

    Cell body

    C

    Nucleus

    D

    Axon

    Question Tags
    📚 Subject:Zoology
    📑 Chapter:Neural Control And Coordination
    🎯Topic:Neuron As Structural And Functional Unit Of Neural System
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Schwann cells, myelin sheath, neuron structure, axon

    3.

    The cell body of neuron contains of

    A

    Cytoplasm

    B

    Cell organelles

    C

    Granular bodies

    D

    All of these

    Question Tags
    📚 Subject:Zoology
    📑 Chapter:Neural Control And Coordination
    🎯Topic:Neuron As Structural And Functional Unit Of Neural System
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Neuron structure, cell biology, cell components

    4.

    A researcher observes a neuron lacking Nissl bodies. What cellular function would likely be impaired in this neuron?

    A

    DNA replication

    B

    Cellular respiration

    C

    Protein synthesis

    D

    Waste removal

    Question Tags
    📚 Subject:Zoology
    📑 Chapter:Neural Control And Coordination
    🎯Topic:Neuron As Structural And Functional Unit Of Neural System
    PYQ YEAR: 2018
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Cell Structure, Neuron, Nissl Bodies, Protein Synthesis

    5.

    Myelin sheath is derived from

    A

    Neuroglial cells

    B

    Schwann cells

    C

    Nerve cells

    D

    All of these

    Question Tags
    📚 Subject:Zoology
    📑 Chapter:Neural Control And Coordination
    🎯Topic:Neuron As Structural And Functional Unit Of Neural System
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Myelin sheath, Schwann cells, Neuroglial cells, Nerve cells

    6.

    A neuron is a …… structure

    A

    Microscopic

    B

    Symmetrical

    C

    Non-microscopic

    D

    Gland

    Question Tags
    📚 Subject:Zoology
    📑 Chapter:Neural Control And Coordination
    🎯Topic:Neuron As Structural And Functional Unit Of Neural System
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Neuron Structure, Scale

    7.

    Neuron can

    A

    Detect stimuli

    B

    Receive stimuli

    C

    Transmit stimuli

    D

    All of these

    Question Tags
    📚 Subject:Zoology
    📑 Chapter:Neural Control And Coordination
    🎯Topic:Neuron As Structural And Functional Unit Of Neural System
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Neuron function, Stimuli detection, Stimuli reception, Stimuli transmission

    8.

    Which is the largest body cell?

    A

    Neurons

    B

    RBCs

    C

    Osteocytes

    D

    Sperms

    Question Tags
    📚 Subject:Zoology
    📑 Chapter:Neural Control And Coordination
    🎯Topic:Neuron As Structural And Functional Unit Of Neural System
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Cell Biology, Anatomy, Cell Size

    9.

    Mark the following statements as true/false and choose the correct option from the codes given below

    I. Neuroglial cells are the packing and supporting cells found in the brain and spinal cord

    II. Oligodendrocytes is a category of glial cells that forms myelin sheaths around the axon

    III. Microglia provides mechanical support to the neurons

    IV. Astrocytes communicate with one another through potassium channels

    Codes

    I II III IV

    A

    True True False False

    B

    False True True False

    C

    False False True True

    D

    True False True False

    Question Tags
    📚 Subject:Zoology
    📑 Chapter:Neural Control And Coordination
    🎯Topic:Neuron As Structural And Functional Unit Of Neural System
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Neuroglial cells, Oligodendrocytes, Myelin sheath, Microglia, Astrocytes, Potassium channels

    10.

    Which one of the following pairs of structures distinguishes a nerve cell from other types of cell?

    A

    Perikaryon and dendrites

    B

    Vacuoles and fibres

    C

    Flagellum and medullary sheath

    D

    Nucleus and mitochondria

    Question Tags
    📚 Subject:Zoology
    📑 Chapter:Neural Control And Coordination
    🎯Topic:Neuron As Structural And Functional Unit Of Neural System
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Cell Biology, Nerve Cell Structure, Cell Organelles

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