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Nuetrik [128]
3 years ago
12

If a solution outside a cell is more concentrated so that the cell loses water to its environment, the external solution is said

to be
Biology
1 answer:
olya-2409 [2.1K]3 years ago
3 0
If a solution outside a cell is more concentrated so that the cell loses water to its environment, the external solution is said to be hypertonic.
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Action potential in a motor neuron triggers the release of what neurotransmitter?
vodomira [7]

Answer:

Action potential in a motor neuron triggers the release of acetylcholine (ACh) neurotransmitter.

Explanation:

Acetylcholine: It is a neurotransmitter released by motor neurons which bind to the receptors end plates of the motor. When an action potential travel down the motor neuron's axon, neurotransmitter release occurs resulting in an influx of calcium and altered permeability of the synaptic terminal membrane.

The Ca2+ ions allow synaptic vesicles to move and bind with the presynaptic membrane which is present on the neuron and released neurotransmitter from the vesicles into the synaptic cleft. Once it's released ACh diffusion occurs across the synaptic cleft to the motor end plate, and binds with ACh receptor. As the neurotransmitter ACh binds, these ions channel open and sodium ions cross the membrane into the muscle cells.

In this phase reduction of voltage inside and outside the cell occurs, which is known as depolarization. When ACh binds to the motor end plate this depolarization is known as end plate potential. Then depolarization spread with the sarcolemma and creating an action potential. This action potential moves the entire cell and creating a wave of depolarization.

5 0
2 years ago
A lab is performed to study the effect of pH and heat on the function of the catalase enzyme found in carrot plants.
prohojiy [21]

Answer:

Explanation pH and temperature

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3 0
2 years ago
Which division of the nervous system controls the ability to dance?
balu736 [363]

Hi


The answer is : Somatic

Because somatic relating to the body


I hope that's help:-


6 0
3 years ago
The lumbar region is ________.
Ratling [72]

Answer:

d. superior to the popliteal region

Explanation:

The lumbar region comprises five vertebrae of the back where the spine bends outward. This part of the spine is essential as it holds the majority of the body weight and also offers flexibility. The popliteal portion is situated at the backend part of the knee and forms the lumbar region at its superior segment. So, the correct answer is option d.

4 0
3 years ago
How is carbon returned to the atmosphere?
MAXImum [283]
I think is the first and second!!
3 0
3 years ago
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