Tag: neurons and synapses

Questions Related to neurons and synapses

Neurotransmitters are released at the synapse by ___________

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Tips of Dendrites

  2. Synaptic Knobs

  3. Organelles of Cyton

  4. Myelin sheath of Axon

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Correct Option: A

Which one of the following nerve stimulates gastric glands of secrete gastric juice and promote contractions of smooth muscles of stomach wall?

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Sacral spinal nerve

  2. Vagus nerve

  3. Glassopharyngeal

  4. Lumbar spinal nerve

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Correct Option: A

In reductive amination, the product is?

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. $\alpha$-ketoglutaric acid

  2. Glutamine

  3. Glumate

  4. Alanine

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Correct Option: C

Nerve impulse travel through synapse with the help of?

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Acetylcholine and sympathetin

  2. Choline and acetylcholine

  3. Adrenaline and noradrenaline

  4. None of the above

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Correct Option: A

Nerve impulse takes place with?

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Ventricular systole

  2. Ventricular diastole

  3. Auricular systole

  4. None of these

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Correct Option: A

Synaptic fatigue is due to

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Repeated release of acetylcholine

  2. Repeated release of adrenaline

  3. Exhaustion of neurotransmitter

  4. Exhaustion of acetyl cholinesterase

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Correct Option: C

Membrane potential of a cell forms

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Movement of anions into the cell

  2. Movement of cations into the cell

  3. Action of proton pump

  4. Action of an electrogenic pump.

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Correct Option: B

The following are the parts of a neuron:
a) Axon b) Terminal branches c) Cyton d) Dendrites. 
The correct pathway of a nerve impulse through these parts are ________.

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. badc

  2. dcab

  3. bdac

  4. adbc

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Correct Option: A

When a stimulus is applied at a site on the polarized membrane, the membrane at that site becomes freely permeable to (i)_ ions. leading to (ii)_ of the membrane.

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. (i) - Na+, (ii) - depolarisation

  2. (i) - K+, (ii)- depolarisation

  3. (i) - K+, (ii)- depolarisation

  4. (i) - Na+, (ii) - depolarisation

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Correct Option: D

Opening of which of the following type of channels is responsible for repolarisation of an axonal membrane?

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. $Na^+$ leaky channels

  2. $K^+$ leaky channels

  3. Voltage gates $Na^+$ channels

  4. Voltage gated $K^+$ channels

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Correct Option: A