Term
| Vitmain A & Night Blindness |
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Definition
Retinol is required for reproduction & bone health. It's converted to retinAL, which is essential for night and color vision.
Vitamin A deficiency leads to night blindess. Rhodopsin in a dark needs to be produced. The speed of adaptation is related to how much vitamin A is available |
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Term
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Definition
most common cartenoid(anti oxidant) Most studied, not indicated that its a great anti-oxidant
It's pro vitamin A |
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Term
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Definition
Cellular differentiation
Vision,Growth,Reproduction,Bone development,Immune system actions
Retinol:required for reproduction and bone health
Retinol can be easily converted to retinAL, which is essential for night and color vision
Retinal can re-form retinol or be irreversibly converted to retinoic acid, which is important for cell growth and differentiation |
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Term
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Definition
Synthesis: make from sunlight
Made in the skin from cholesterol
Activated in liver and kidney
Regulates blood calcium levels
unique because, given sufficient sunlight, your body can synthesize all it needs |
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Term
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Definition
Rickets in children
Osteomalacia and osteoporosis in adults
Increased risk for: CVD, multiple sclerosis, rheumatoid arthritis,& type 1 diabetes |
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Term
| Vitamin E as an antioxidant |
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Definition
Can donate an electron to a free radical thereby neutralizing it
When vitamin E donates the electron, it becomes a free radical itself
Vitamin C can donate an electron to the E radical regenerating it
Vitamin C then becomes a radical, but its regenerated by glutathione,becomes a free radical and finally regenerated by NADPH |
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Term
| Vitamin C as an Antioxidant** |
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Definition
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Term
| Vitamins that play role for bone formation** |
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Definition
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Term
| Function of Vitamin K and Synthesis |
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Definition
Family of compounds known as Quinone's
Blood clotting, Formation of bone
Bacteria in the colon produce K
In Green vegetables, liver, egg yolks
Synthesized by our intestinal bacteria
Menadione is a synthetic version of vitamin K |
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