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Vitamins and Coenzymes

Vitamins and Coenzymes
Ascorbic acid acts as an

None of these
oxidizing and reducing agent both
oxidizing agent
reducing agent

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Vitamins and Coenzymes
Models of end-linked Osaka VI Fibrinogen dimers, a bilayer dimer is linked at

both ends by one disulfide bond
either end via two disulfide bonds
both ends by two disulfide bonds
either end via a single disulfide bond

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Vitamins and Coenzymes
Which of these hormones is a catecholamine?

Tetrahydrofolate
Follitropin
Norepinephrine
Tetraiodothyronine

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Vitamins and Coenzymes
What compound of raw egg white causes a syndrome similar to vitamin B deficiency?

Albumin
Betabindin
Avidin
Ovalbumin

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Vitamins and Coenzymes
The reductant, NADH, transfers the electrons via a flavo-proteins to the specific disulfide (S-S) protein to form a dithiol (SH,SH) protein which converts vitamin

B12(Co2+)to B12(Co)
B12(Co) to B12(Co2+)
B12(Co2+)to B12(Co+)
B12(Co+)to B12(Co2+)

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Vitamins and Coenzymes
The most prominent role that tocopherol has in in-vitro systems is as a strong

all of these
reducing agent
antioxidants
oxidizing agent

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