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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of these is a vitamin A precursor?

Pyridoxine
Beta-Carotene
Cobalamin
Thiamine

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Vitamins and Coenzymes
Which of these hormones is a catecholamine?

Follitropin
Tetrahydrofolate
Tetraiodothyronine
Norepinephrine

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Vitamins and Coenzymes
In the co-enzyme B12the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine.

5-6 dimethylbenzimidazole
adenine
cyanocobalamin
hydroxycobalamin

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Vitamins and Coenzymes
Main function of insulin hormone is to

increase glycogen in liver
decrease glycogen in liver
increase blood sugar
decrease blood sugar

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Vitamins and Coenzymes
Lipoic acid exists in

none of these
oxidized form
oxidized and reduced form both
reduced form

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Vitamins and Coenzymes
An example of a digestive hormone is

gastrin
amylase
pepsin
lipase

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