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Effectus [21]
4 years ago
15

What type of glial cell acts locally to maintain normal electrolyte composition of the cerebrospinal fluid?

Biology
1 answer:
nikitadnepr [17]4 years ago
7 0

Answer:

Astrocytes

Explanation:

Astrocytes are specialized glial cells found in the brain and spinal cord, they are responsible for maintaining the electrolytic composition of the cerebrospinal fluid, induce the formation of the blood-brain barrier and act as a support and guide for neurons during migration. They keep the ionic composition of the extracellular fluid of the central nervous system through the water channels, Aquaporin-4 (AQP4) and K channels, located in the pedicle processes of the astrocytes in the perivascular space, these cells exchange K and water in said perivascular medium away from the neurons. Astrocytes selectively edematize during hypotonic stress, while neurons do not.

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shusha [124]

Answer: 2. Each subunit represents a separate polypeptide chain, while one polypeptide chain may contain several domains.

Explanation: Each subunit constitutes of one polypeptide chain. A polypeptide chain has one particular gene coding for it. thus it simply implies that a protein must have one gene for each subunit.

Many proteins is made up of different protein domains. A particular domain may appear in a variety of different proteins.

domains are stable on there own, they can be exchanged via genetic engineering between one protein and another.

3 0
3 years ago
Which of the following best describes a adaptation brought about by natural selection
PtichkaEL [24]

Answer:

I'm not sure what the answers are but

Polar bears begin to eat goose eggs as a way to survive when seals, their usual prey, are not available.

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if these are your options then the answer is

C) Snowshoe hares change their fur from white to brown to match their warm summer habitats.

5 0
4 years ago
Near witch major city were iron works found
Hoochie [10]
Atlanta, Georgia, and Fulton county
6 0
4 years ago
What molecule can mix with water and it also a source of energy and a storage area?
Delvig [45]

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Explanation:

4 0
3 years ago
Read 2 more answers
Which picture should I use for supporting that my hypothesis was not supported? And please make a good explanation of the pictur
yanalaym [24]

Answer:

You should probably use the third picture to support that your hypothesis was incorrect.

Explanation:

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4 0
3 years ago
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