general properties and definitions Flashcards
1
Q
terms
- An inactive enzyme precursor
- Eg. Coagulation factors and Digestive enzymes
A
proenzyme or zymogens
2
Q
cofactors
organic or inorganic:
* Metal ion (Cl, Mg, Cu)
A
inorganic
3
Q
two types of cofactors
A
- coenzyme
- activator
4
Q
terms
An active substance formed by combination of a co-enzyme and an apoenzyme.
A
holoenzymes
5
Q
terms
- Substances acted upon by enzymes
- Specific for their particular enzyme
A
substrates
6
Q
components
A cavity of an enzyme where substrates bind and undergo a chemical reaction
A
active site
7
Q
component
A cavity other than the active site that binds regulatory molecules
A
allosteric site
8
Q
cofactors
organic or inorganic:
* Nucleotide (NADP) & Vitamins
A
organic
9
Q
terms
- The protein portion of the enzyme
- Subject to denaturation, in which enzyme losses its activity
A
apoenzyme
10
Q
terms
Similar enzymatic activity but differ in physical, biochemical and immunologic characteristics
A
isoenzyme
11
Q
terms
Substance added in the enzyme substrate complex to manifest the enzyme activity
A
cofactors
