Questions and Answers
Which vitamin is classified as a fat soluble vitamin?
Vitamin A
Which vitamin undergoes storage in the liver?
Vitamin D
Which form of vitamin D is the active form?
1,25dihydroxycholecalciferol
Which vitamin must be supplied in the diet?
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Which vitamin is commonly found in green leafy vegetables and citrus fruits?
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Which class of enzymes catalyze the transfer of functional groups between molecules?
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Which model of the active site describes conformational changes in shape after binding of the substrate?
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Which factor can affect the rate of enzyme-catalyzed reaction?
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What are isoenzymes?
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Plasma enzymes have clinical significance because they...
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Study Notes
Vitamins
- Vitamins A, D, E, and K are classified as fat-soluble vitamins.
- Vitamin A, D, and B12 undergo storage in the liver.
- Calcitriol is the active form of vitamin D.
- Vitamin D must be supplied in the diet, as it is not synthesized by the body.
- Vitamin C is commonly found in green leafy vegetables and citrus fruits.
Enzymes
- Transferases are the class of enzymes that catalyze the transfer of functional groups between molecules.
- The induced fit model describes conformational changes in the shape of the active site after binding of the substrate.
- Factors that can affect the rate of enzyme-catalyzed reactions include pH, temperature, substrate concentration, and enzyme concentration.
- Isoenzymes are enzymes that have different amino acid sequences but catalyze the same reaction.
- Plasma enzymes have clinical significance because they can be used as diagnostic tools to detect diseases, such as heart attacks or liver damage.
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