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Gennadij [26K]
3 years ago
10

The portion of the biosphere that consists of all earth's land is called the _____

Biology
1 answer:
Marizza181 [45]3 years ago
8 0
Lithosphere is the correct answer
cause hydrosphere is water
and stratosphere and atmosphere are part of the air
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identify the subcellular structure of the neuron that forms the basis for the transmission of nerve impulses. (2 points) describ
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The subcellular structures of neuron that forms the basis for transmission of nerve impulses are the synaptic vesicles.

What are the steps in impulse transmission between neurons?

  • The action potential or nerve impulse reaches the <u>axon</u> of neuron and depolarises the membrane.
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  • Calcium influx triggers release of neurotransmitter.
  • This neurotransmitters bind to postsynaptic membrane and new impulses are created.

Synaptic vesicle under resting condition:

  1. The neurotransmitter molecules are stored in synaptic vesicles.
  2. If the neurotransmitter leak from the vesicles, they are destroyed by enzymes.
  3. During resting condition, they are placed randomly.
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Thus from the above we can conclude that, synaptic vesicles are the subcellular structures in transmission of nerve impulses and , under resting condition they are placed randomly.

To know more about transmission of nerve impulses :

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4 0
1 year ago
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