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NEUROSCIENCE MCQs

Total Questions : 50 | Page 4 of 5 pages
Question 31. Which statement is true about neuromuscular junction?
  1.    Inflow of sodium cause the inhibitory post-synaptic potential.
  2.    When impulse reach axon terminal, voltage gated calcium channel will close.
  3.    NMJ is a chemical synapse between lower motor neuron and motor end plate.
  4.    Neurotransmitter has been release to synaptic cleft for opening of ligand gated potassium channel.
 Discuss Question
Answer: Option C. -> NMJ is a chemical synapse between lower motor neuron and motor end plate.
Question 32. Very long cells that send messages throughout the body
  1.    brain cells
  2.    nerve cells
  3.    muscle cells
  4.    tissue cells
 Discuss Question
Answer: Option B. -> nerve cells
Question 33. Which sense organ detects sound vibrations for hearing?
  1.    Nose
  2.    Tongue
  3.    Ears
  4.    Brain
 Discuss Question
Answer: Option C. -> Ears
Question 34. Which statement is correct about resting membrane potential?
  1.    There is a lot of K+ ion inside cell.
  2.    There is a lot of Na2+ ion inside cell.
  3.    There is a lot of Ca2+ ion outside cell.
  4.    There is a lot of PO43- ion outside cell.
 Discuss Question
Answer: Option B. -> There is a lot of Na2+ ion inside cell.
Question 35. Organ in the nervous system that sends and receives messages from the other body organs, moves information to and from the brain and peripheral nerves
  1.    nervous sytem
  2.    brain
  3.    spinal cord
  4.    central nervous system
 Discuss Question
Answer: Option B. -> brain
Question 36. The reaction time is dependent on the speed of __________
  1.    electrical signals
  2.    electrical waves
  3.    energy
  4.    waves
 Discuss Question
Answer: Option A. -> electrical signals
Question 37. Which sense organ detects sensations of touch, temperature, and sends signals to the brain?
  1.    skin
  2.    eyes
  3.    nose
  4.    Ears
 Discuss Question
Answer: Option A. -> skin
Question 38. Animals use their __________ to gather information about their surroundings to help them survive their environments
  1.    sense organs
  2.    chord organs
  3.    brain organs
  4.    main organs
 Discuss Question
Answer: Option A. -> sense organs
Question 39. Which of the following are sense adaptations:
  1.    Bats echolocation (find food 18 ft. away)
  2.    Bees Magnitite (iron oxide on abdomen)
  3.    Butterflies chemoreceptors (can taste food with feet)
  4.    Catfish Barbels (find food)
 Discuss Question
Answer: Option A. -> Bats echolocation (find food 18 ft. away)
Question 40. Which sense organ detects different odors and sends signals to the brain?
  1.    skin
  2.    eyes
  3.    nose
  4.    ears
 Discuss Question
Answer: Option C. -> nose

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