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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of these hormones is a catecholamine?

Tetraiodothyronine
Norepinephrine
Tetrahydrofolate
Follitropin

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Vitamins and Coenzymes
Main function of insulin hormone is to

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

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Vitamins and Coenzymes
Selenium is an essential component of the enzyme glutathione peroxidase which

scavenges toxic hydoperoxycompounds in tissues
oxidizes toxic hydoperoxycompounds in tissues
None of these
reduces toxic hydoperoxycompounds in tissues

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Vitamins and Coenzymes
Which of the following are reduced coenzymes?

NADH and FADH2
NAD+ and FAD
ATP and GTP
Coenzyme A and ubiquinone

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

plants
none of these
animal
plants and animals both

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Vitamins and Coenzymes
Lipoic acid is a co-factor of the

α-ketoglutaric dehydrogenase
both (a) and (b)
di-hydroorotate dehydrogenase
pyruvic dehydrogenase

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