Question

what are iso enzymes explain

Answer 1

Isozymes are enzymes that differ in amino acid sequence but catalyze the same chemical reaction. These enzymes usually display different kinetic parameters, or different regulatory properties.

Answer 2

$\huge\text{\underline{\underline{Iso-enzymes:}}}$


⚫They are multiple molecular forms of enzyme occurring in the same organism and having a similar substrate activity are called as iso-enzymes.


⚫Over 100 enzymes are known to have iso-enzymes.

(i) $\alpha$-amylase of wheat endorsers has 16-iso-enzymes.

(ii) Lactic acid dehydrogenase has 5-iso-enzymes.

(iii) Alcohol dehydrogenase has 4-iso-enzymes.


⚫All enzymes are produced in the living cells. About 2,000 enzymes have been recorded. These are of two types with regard to the site where they act:

$\bold{=>\:Intracellular}$

$\bold{=>\:Extracellular}$


$\text{\underline{\underline{1.\:Intracellular\:Enzymes:}}}$


⚫Most of the enzymes remain and function inside the cells.

⚫They are called the intracellular enzymes, or endoenzymes.

⚫Some occur dissolved in the cytoplasmic matrix.


$\text{\underline{\underline{2.\:Extracellular\:Enzymes:}}}$


⚫Certain enzymes leave the cells and function outside them.

⚫They are called the extracellular enzymes, or exoenzymes.

⚫The enzyme retain their catalytic action even after extraction from the cells.