Enzyme Activity Flashcards
What is a catalyst?
A catalyst is a substance which INCREASES the rate of a reaction.
What do all enzymes have so they can react in a catalyst?
Unique // specific shapes
What do enzymes need to react?
The right temperature
The right pH
What happens if you change the temperature of an enzyme catalyst REACTION?
It changes the rate of reaction:
Higher temperature = faster reaction
Lower temperature = slower reaction
What happens if the temperature gets too hot?
Some of the bonds holding the enzyme together will break down. This destroys the unique shape of the enzyme.
What happens if the pH is too low // too high?
It interferes with the bonds holding the enzyme together.
This changed the shape of the enzyme.
What is usually the best pH?
pH 7 // neutral
What do digestive enzymes do?
Break down large molecules into smaller ones.
Where is bile neutralise produced?
In the liver.
Where is the bile neutralise stored?
In the gall bladder before released into the small intestine.
Starch, proteins and fats are ___ molecules?
Big.
Sugars, amino acids, glycerol and fatty acids are _____ molecules.
Smaller.
Bigger molecules can’t ________________________ because they’re too big.
Pass through the walls of the digestive system.
Smaller molecules can _________________ because they’re small.
Pass through the walls of the digestive system.
What 3 places are amylase made in?
Salivary glands
Pancreas
Small intestine
