VITAMINS AND COENZYMES QUIZ

An example of a digestive hormone is

pepsin

lipase

amylase

gastrin

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β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by

plants and animals both

plants

none of these

animal

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Vitamins are essential because the organism

can synthesize these compounds partially

None of these

can't synthesize these compounds in the adequate amounts

can't synthesize these compounds at all

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Which of these hormones is a catecholamine?

Follitropin

Norepinephrine

Tetraiodothyronine

Tetrahydrofolate

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The prosthetic group biotin is a carrier of which type of molecule?

Sulfhydryl group

Activated carbon dioxide (CO2)

Methyl group

Ammonia

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Dihydroorotate dehydrogenase contains

4 flavins and 2 atoms of iron per molecule

2 flavins and 2 atoms of iron per molecule

4 flavins and 4 atoms of iron per molecule

2 flavins and 4 atoms of iron per molecule

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Vitamin B12 (Cobalamin) is only synthesized by

animals

fishes

micro-organisms

plants

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Acyl carrier protein (ACP) plays an important role in the biosynthesis of

carbohydrates

fatty acids

sugars

amino acids

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The vitamin riboflavin, which occurs as a yellow pigment in egg yolk and milk become

colorless on reduction with Zn in acid and regained its color on re-oxidation

colorless on oxidation and regained its color on reduction with Zn in acid

more deep in color on reduction with Zn in acid and regained its color on re-oxidation

more deep in color on oxidation and regained its color on reduction with Zn in acid

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Who discovered vitamin C (ascorbic acid)?

Paul Berg

Kerry Mull is

Linus Pauling

Albert Szent-Gyorgyi

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