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masha68 [24]
3 years ago
5

Which of the following is not a function of astrocytes?

Biology
1 answer:
VLD [36.1K]3 years ago
5 0

The correct answer is: E) provide the defense for the CNS

Astrocytes are star-shaped cells found in central nervous system (brain and spinal cord) .Some of their functions include:

• Support of neurons by supporting endothelilal cell of blood–brain barrier,

• Provide nutrients to neurons

• Maintain ion balance and thus controlchemical environment around neurons

• Repair of injuries in the brain

• the secretion or absorption of neural transmitters…

The cells that provide the defense for the CNS are called microglia. Those cells are also glial cells, derived from macrophages and thus, part of active immune defense.

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Xelga [282]
Carbohydrates

Carbohydrates are polymers of carbon, hydrogen and oxygen. They can be classified as monosaccharides, disaccharides and polysaccharides. Carbohydrates are found in starch, fruits, vegetables, milk and sugars. They are an important source of a healthy diet.

Nucleic Acids

The nucleic acids include DNA and RNA that are the polymers of nucleotides. Nucleotides comprise a pentose group, a phosphate group, and a nitrogenous base group. All the hereditary information is stored in the DNA. The DNA synthesised into RNA and proteins.

Proteins

Proteins are the polymers of amino acids. These include the carboxylic and the amino group. There would be no lipids or carbohydrates without proteins because the enzymes used for their synthesis are proteins themselves.

Lipids

Lipids are a hydrophobic set of macromolecules, i.e., they do not dissolve in water. These involve triglycerides, carotenoids, phospholipids, and steroids. They help in the formation of the cell membrane, formation of hormones and in the and as stored fuel.



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