Nutrition - Vitamins

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310373

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What is the main source of vitamin D?

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310375

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7-dehydrocholesterol and Ergosterol are precursors of which vitamin?

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310377

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Which precursor of vitamin D is synthesised in the body from cholesterol?

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310379

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Do Vitamin D precursors have antirachitic activity?

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310381

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What is required to activate vitamin D precursors?

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310390

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Where does the final conversion of D2 and D3 to 1,25-dihydroxyholecalciferol occur?

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310392

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The major role of vitamin D is to....

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310394

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Where is there a store of vitamin D?

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310395

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The status of vitamin D can be assessed by a blood test.

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310399

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Hypervitaminosis of vitamin D can lead to death by a....

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310417

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Which vitamin deficiency causes blindness, weakness and low level immunoglobulins?

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310418

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What is a precursor of Vitamin A

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310419

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Where is vitamin A absorbed in monogastrics?

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310420

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Nutrition - Vitamins

Question 1 of 1

Time Left

What is the main source of vitamin D?

Select the correct answer(s).

(0/0)

7-dehydrocholesterol and Ergosterol are precursors of which vitamin?

Select the correct answer(s).

(0/0)

Which precursor of vitamin D is synthesised in the body from cholesterol?

Select the correct answer(s).

(0/0)

Do Vitamin D precursors have antirachitic activity?

Select the correct answer(s).

(0/0)

What is required to activate vitamin D precursors?

Select the correct answer(s).

(0/0)

Where does the final conversion of D2 and D3 to 1,25-dihydroxyholecalciferol occur?

Select the correct answer(s).

(0/0)

The major role of vitamin D is to....

Select the correct answer(s).

(0/0)

Where is there a store of vitamin D?

Select the correct answer(s).

(0/0)

The status of vitamin D can be assessed by a blood test.

Select the correct answer(s).

(0/0)

Hypervitaminosis of vitamin D can lead to death by a....

Select the correct answer(s).

(0/0)

Which vitamin deficiency causes blindness, weakness and low level immunoglobulins?

Select the correct answer(s).

(0/0)

What is a precursor of Vitamin A

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Where is vitamin A absorbed in monogastrics?

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Which species lacks an enzyme that cleaves beta carotene and requires preformed vitamin A in their diet?

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What are the 2 roles of vitamin A?

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