Digestive enzymes Flashcards
Do enzymes speed up or slow down chemical reactions?
Speed up or catalyse
Describe an enzymes
Large protein molecules with a groove e on the surface called the active site.
What is a substrate
Substrate is the molecule that the enzyme breaks down
What are proteins broken down by?
Proteases
What are amino acids?
Long chains of proteins
What does starch consist of
A chain of glucose molecules
What are carbohydrates broken down by?
Carbohydrases
What do digested carbohydrates produce
Simple sugars
What does a lipid contain?
A molecule of glycerol attached to three molecules of fatty acids
What are lipid molecules digested by?
Lipase
What does bile convert?
Large lipid droplets into smaer droplets
Is bile alkaline or acid?
Alkaline. It neutralises stomach acid
What happens when temperature is increases on the enzyme
The enzyme and the substrate are moving faster so there are more collisions per second.
What is the name of a certain temperature working at the fastest possible rate?
The optimum temperature
