Neuron-2 MCQ

Test your knowledge with important Neuron-2 MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Neuron-2 MCQs at Bissoy

• Action potentials can be inhibitory. True or false?
  ক

  True

  খ

  False
• What happens when a neurotransmitter binds to a receptor on the post-synaptic membrane?
  ক

  Opening of ion channels

  খ

  Conformational changes in the neuron

  গ

  Graded potential is transmitted across the neuron

  ঘ

  It becomes impermeable to all ions
• Which of these structures are present on the post-synaptic membrane?
  ক

  Synaptic knobs

  খ

  Synaptic vesicles

  গ

  Receptors

  ঘ

  Schwan cells
• What happens to synaptic vesicles during an action potential?
  ক

  They degrade their contents

  খ

  They open up inside the synaptic knob

  গ

  They move towards and fuse with the plasma membrane

  ঘ

  They are released into the synapse
• Which of these are involved in the transmission of nerve impulses?
  ক

  Synaptic knob

  খ

  Schwan cells

  গ

  Nissl’s granules

  ঘ

  Neurotransmitters
• The outer surface of the axon has a positive charge at resting membrane potential. True or false?
  ক

  True

  খ

  False
• Which of these is false regarding synaptic clefts?
  ক

  It lies between the membranes of pre and post-synaptic neurons

  খ

  It is a fluid filled space

  গ

  Electrical synapses have large synaptic clefts

  ঘ

  It is a portion of the synapse
• Which of the following statements is false regarding electrical synapses?
  ক

  Membranes of pre and post-synaptic neurons are in very close proximity

  খ

  Transmission is always faster than that across a chemical synapse

  গ

  It is similar to impulse conduction along a single axon

  ঘ

  Electrical synapses are common in our system
• Which of these is not a component of the synapse?
  ক

  Synaptic vesicles

  খ

  Pre-synaptic membrane

  গ

  Post-synaptic membrane

  ঘ

  Synaptic cleft
• Nerve impulses are transmitted from one neuron to another via which of these?
  ক

  Schwan cells

  খ

  Nissl’s granules

  গ

  Synapses

  ঘ

  Myelin sheath
• How is the resting potential restored after a nerve impulse?
  ক

  Potassium ions diffuse inside the membrane

  খ

  Potassium ions diffuse outside the membrane

  গ

  The membrane becomes impermeable to potassium ions

  ঘ

  There is no movement of potassium ions
• What is a nerve impulse also known as?
  ক

  Action potential

  খ

  Graded potential

  গ

  Resting potential

  ঘ

  Membrane potential
• Which of these does not take place when a stimulus is applied to a polarized axonal membrane?
  ক

  It becomes permeable to sodium ions

  খ

  The membrane is depolarized

  গ

  There is a slow influx of sodium ions

  ঘ

  Outer surface of the membrane becomes negatively charged
• Which of the following is not true regarding resting potential?
  ক

  There is a potential difference across the plasma membrane

  খ

  The potential difference is maintained by the Na-K pump

  গ

  The outer surface of the membrane is negatively charged

  ঘ

  The axonal membrane is polarized
• At resting membrane potential, the axonal membrane is impermeable to which ions?
  ক

  Calcium ions

  খ

  Sodium ions

  গ

  Potassium ions

  ঘ

  Chlorine ions