Vitamin E Sources and Functions

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What is the primary function of Vitamin E?

Acting as an anti-hemorrhage factor

Regulating selenium metabolism

Aiding in the biosynthesis of coenzymes

Protecting cell membranes from oxidative damage (correct)

What is the effect of Vitamin E deficiency in female rats?

Muscular dystrophy

Sterility in males

Degeneration of the germinal epithelium

Intrauterine death of the fetus (correct)

What is the chemical structure of Vitamin K?

Tocopherolactone

Naphthoquinone (correct)

2-methyl-3-difarnesyl-1, 4-naphthoquinone

2-methyl-3-phytyl-1, 4-naphthoquinone

Which of the following is NOT a rich source of Vitamin E?

Fish Signup and view all the answers

What is the effect of Vitamin E deficiency on skeletal muscles?

All of the above Signup and view all the answers

What is the name of the vitamin commonly known as the anti-hemorrhage factor?

Vitamin K Signup and view all the answers

Which sterol is converted into vitamin D2 through irradiation?

Ergosterol Signup and view all the answers

Which type of vitamin D is formed by irradiating the animal sterol 7-dehydrocholesterol?

Vitamin D3 Signup and view all the answers

Which disease is known as the 'antirachitic vitamin' and is associated with bow-legs and enlarged joints in children?

Rickets Signup and view all the answers

Which naturally occurring tocopherol is the most active form of vitamin E?

α tocopherol Signup and view all the answers

What is the sole difference between α, β, γ, and δ tocopherols, which are naturally occurring forms of vitamin E?

Their number and position of methyl groups in the first ring of tocol nucleus Signup and view all the answers

What is the process by which vitamin D is synthesized in the skin?

By solar irradiation of 7-dehydrocholesterol Signup and view all the answers

What is the chemical structure of Vitamin A?

A β-ionone ring attached to a hydrocarbon side chain ending in an alcohol group Signup and view all the answers

What is the name of the aldehyde form of Vitamin A?

Retinal Signup and view all the answers

What is the source of vitamin A2?

Fresh water fish liver Signup and view all the answers

What is the function of retinol in the body?

Supporting growth and reproduction Signup and view all the answers

What is the name of the pigments from which Vitamin A is derived?

Carotenoids Signup and view all the answers

Vitamin E Sources and Functions

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