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Taya2010 [7]
3 years ago
10

What is the physiological significance of the presences of myelin on an axon?

Biology
1 answer:
rewona [7]3 years ago
3 0

Explanation:

The myelin sheath (composed of protein and lipids) is a protective covering that surrounds axons (the long thin projections that extend from the main body of a nerve cell or neuron. The main function of myelin is to protect and insulate these axons and enhance their transmission of electrical impulses. If myelin is damaged, the transmission of these impulses is slowed down.

I hope you find this information useful and interesting! Good luck!

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In<br> what ways are female and male reproductive system similar similar
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With the use of site-directed mutagenesis, hemoglobin has been prepared in which the proximal histidine residues in both alpha a
nirvana33 [79]

Answer:

The modified hemoglobin with free imidazole cannot be expected to show cooperativity in oxygen binding. The movement of iron ion takes place up in the plane of heme when binding of one subunit of hemoglobin takes place with oxygen. One of the iron's and oxygen's axial ligands comprise the proximal histidine's imidazole ring.  

With the movement of iron into the hemoglobin ring, the pulling of proximal histidine takes place along with it. Therefore, when binding of oxygen takes place with one subunit, a modification also takes place in the intersubunit associations, this also comprises displacement of the alpha helix. This phenomenon plays an essential role in modifying the hemoglobin's tensed state to the relaxed state. The withdrawal or mutation of the imidazole ring from the histidine residue does not further permit the cooperative binding as it is not associated physically with the alpha-helix.  

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4 years ago
1. Which of the following parts allows different activities of the cell to happen?
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Answer:

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3 0
3 years ago
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Base your answer on the chemical equation shown in the diagram below and on your knowledge of biology.
Nastasia [14]

Answer:

The correct option is;

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8 0
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Two organisms that are placed on distantly spaced twigs on a phylogenetic tree are
Reika [66]

Answer;

Two organisms that are placed on distantly spaced twigs on a phylogenetic tree are distantly related. They don't share the most recent common ancestor.

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