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Essay

Vitamin A

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Issue:

Science

 

Written by:

Valerie Q

 

Date added:

December 26, 2015

 

Level:

University

 

Grade:

B

 

No of pages / words:

3 / 684

 

Was viewed:

1519 times

 

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Essay content:

It was named due to the fact that the “water-soluble factor B” (Vitamin B) had just recently been discovered and therefore researchers chose the name “fat-soluble factor A” (Vitamin A). Vitamin A does not a take on a very complex structure. “Retinol is the immediate precursor to two important active metabolites: retinal, which plays a critical role in vision, and retinoic acid, which serves as an intracellular messenger that affects transcription of a number of genes...
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“Retinol is the immediate precursor to two important active metabolites: retinal, which plays a critical role in vision, and retinoic acid, which serves as an intracellular messenger that affects transcription of a number of genes.” (Lancet, 1995) It is structurally related to carotene. “Carotene is converted into Vitamin A in the liver...
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