Biology

Protease

• Protease enzymes are secreted by the stomach, pancreas and small intestine and their job is to digest proteins.
• Proteins are long chains of amino acids.
• The word equation is:

Carbohydrase

• Carbohydrase enzymes are secreted by the mouth, pancreas and small intestine.
•  The carbohydrase enzyme, amylase is secreted by the mouth and found in saliva.
•  It starts to work as soon as we begin to chew our food.  Amylase digests long, complex starch  molecules, into smaller, simpler maltose molecules
• As maltose is a disaccharide it still needs further digestion before it can be absorbed.
• The enzyme maltase breaks it down into glucose. 
• The word equation is:

- Enzymes are catalysts produced by living things.

- A catalyst is a substance which increases the speed of a reaction WITHOUT being used or up changed.

- Enzymes work best at their optium pH.

Lipase

• Lipase is secreted by the pancreas and the walls of the small intestine.
• It digests complex fat (lipid) molecules into simple , soluble fatty acid and glycerol molecules.
• The word reaction  is: