enzymes

Question 1

enzymes

Answer 1

PROTEINS that function as biological catalysts.

Enzymes are needed to break large molecules to smaller ones

Biological catalysis: speed up a reaction, but do not get used in the reaction itself

They lower activation energy, speeding up the reaction process. They can be reused.

Question 2

How do enzymes work

Answer 2

Each enzyme has an active site. Each enzyme is different
- The molecule it wants to help change has a substrate
- The active site and substrate must fit together like a ‘lock and key’.

Together it forms an enzyme substrate complex.

Then the reaction takes place (i.e breaking something down) and after the reaction the products leave the active site.

Question 3

Enzymes are effected by

Answer 3

1. Temperature
   - too much heat causes enzyme to change shape, active size changes shape, and the enzyme starts to denature
2. PH
   - there is an optimum PH depending on the enzyme (mostly it is 7). When this optimum level is crossed, it change alter the bonding