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general properties and definitions Flashcards

(11 cards)

1
Q

terms

  • An inactive enzyme precursor
  • Eg. Coagulation factors and Digestive enzymes
A

proenzyme or zymogens

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2
Q

cofactors

organic or inorganic:
* Metal ion (Cl, Mg, Cu)

A

inorganic

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3
Q

two types of cofactors

A
  • coenzyme
  • activator
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4
Q

terms

An active substance formed by combination of a co-enzyme and an apoenzyme.

A

holoenzymes

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5
Q

terms

  • Substances acted upon by enzymes
  • Specific for their particular enzyme
A

substrates

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6
Q

components

A cavity of an enzyme where substrates bind and undergo a chemical reaction

A

active site

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7
Q

component

A cavity other than the active site that binds regulatory molecules

A

allosteric site

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8
Q

cofactors

organic or inorganic:
* Nucleotide (NADP) & Vitamins

A

organic

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9
Q

terms

  • The protein portion of the enzyme
  • Subject to denaturation, in which enzyme losses its activity
A

apoenzyme

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10
Q

terms

Similar enzymatic activity but differ in physical, biochemical and immunologic characteristics

A

isoenzyme

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11
Q

terms

Substance added in the enzyme substrate complex to manifest the enzyme activity

A

cofactors

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