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Vitamin A For Acnt quiz 9

Vitamin A For Acnt  quiz 9

Vitamin A For Acnt

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Quiz Questions And Answers

There is enough supply of vitamin A in the liver to last for

One week
One month
Several months
Several years

What is needed to hydrolyse retinyl esters in the small intesting to release retinol

HCI
Pancreatic lipase
Salivary lipase

How does rentinol travel to the liver

Via lymph
In chylomicrons
It is absorbed in small intestine

Thyroxine increases Vitamin A absorption

True
False

For retinol to be transported from the liver to other tissues it needs Rentinol binding proteins

True
False

What helps to absorb preformed Vitamin A, mark all that apply

HCI
Pancreatic secretions

Retinol binding protein is dependant upon which mineral for its production

Iron
Magnesium
Zinc
Copper

Vitamin A is excreted in which ways, mark all that apply

As carbon dioxide
In urine
In faeces
All of the above

50% of Vitamin A is kept in the body as stored primarily in

Adipose tissue
The liver
The brain

Protein is important to carotenoids being converted to vitamin A

True
False
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