Answered: metabolism of vitamin A in a power…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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metabolism of vitamin A in a power point slide

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Step 1Introduction

Vitamins

Vitamins are the nutrients that are required in small amounts in a balanced diet.
Deficiency diseases are caused due to the improper intake of vitamins in the diet.
The human body can't synthesize all vitamins.
Plant cells can synthesize vitamins.
On the basis of their solubility in water, vitamins can be divided into water-soluble vitamins and fat-soluble vitamins.
Water-soluble vitamins are Vitamin B and Vitamin C.
Fat-soluble vitamins are Vitamins A, D, E, and K.

Water-soluble Vitamins

Water-soluble vitamins are soluble in water hence they are not stored in the body and can be excreted through excretory waste.
Vitamin B and Vitamin C are water-soluble vitamins.
Vitamin B is not a single vitamin but consists of around 13 different vitamins forming a complex known as Vitamin B complex.
Vitamin B is actively involved in the coenzyme system in the human body hence performs a variety of functions whereas Vit C strengthens the immune system (WBC synthesis).

Fat-soluble Vitamins

Fat-soluble vitamins are either terpenoids (Vit A, E, K ) or steroids (Vit D).
Being fat-soluble can be stored in the body and can be toxic if taken in excessive amounts.
Vitamin A takes part in retinol formation in the eyes. Vitamin D in calcium and phosphorous absorption.
Vitamin E in mitochondrial protection, Vitamin K in blood clotting.

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