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16 Cards in this Set
- Front
- Back
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Define: inborn diseases of metabolism
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Certain diseases in which the enzymes are unable to catalyze certain reactions leading to a block in certain metabolic pathways.
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an enzyme which is RNA in nature
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Ribozyme
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Holoenzyme = ?
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Apoenzyme(protein) + coenzyme
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Rate of reaction =
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Change in amounts of starting materials or end products / unit time.
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What is the function of catalase?
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It decomposes peroxides
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What are the functions of trypsin and pepsin?
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They are the proteolytic enzymes of the digestive tract
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What are the 6 classes of enzumes?
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1- Oxidoreductases.
2- Transferases. 3- Hyrolases. 4- Lyases. 5- Isomerases. 6- Ligases. |
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Over The HILL
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Oxidoreductases
Transferases Hydrolases Isomerases Lyases Ligases |
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What do oxidoreductases transfer?
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1- An hydrogen ion.
2- Electron. 3- Oxygen. |
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What's the difference between oxidases and dehydrogenases?
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Dehydrogenases use a molecule other than oxygen as an electron acceptor.
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What's the difference between oxidases and oxygenases?
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Oxygenases directly incorporate the oxygen atom into the substrate
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What do peroxidases use as an electron acceptor?
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H2o2
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what are the 3 transferases?
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1- Aminotransferases.
2- Methyltransferases. 3- Kinases. |
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What are the classes of enzymes which has anything to do with phosphates?
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1- Kinases.(Yjry transfer a phosphate group from an ATP molecule to a substrate).
2- Phosphatases they remove a PO3 from a substrate using water.(hydrolases) |
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What is the function of racemases?
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They interconvert L and D stereoisomers
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Whgat is the difference between synthetases and synthases?
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Synthetases link two molecules using an ATP-dependent reaction, this isn't true of synthases.
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