B2.5 Proteins Flashcards
What’s an enzyme?
Biological catalysts
4 functions or proteins?
Antibodies Receptors Muscles Hormones Respiration
How do enzymes work?
The size and shape of the active site is complementary to the substrate
How does temperature effect enzymes?
Denature
Up then down after 37
How does pH affect enzymes?
Up the down on graph
Up to optimum pH
Describe the foods path?
Mouth- breaks down food Osophagus Stomach- churned and HCl added Duodenum- bile added Ileum- nutrients into blood Large intestine- water removed Rectum- poo
What does protease do and where is it found?
Protein to amino acids
Made in the pancreas and small intestine
Goes to stomach and small intestine
What does lipase do and where is it?
Fat to fatty acids
Made in the pancreas
In the small intestine
What do salivary amylase do and where is it?
Starch to sugar
Salivary gland to mouth
What do pancreatic amylase do and where are they?
Starch to sugar
Pancreas to small intestine
What does bile do?
Neutralise
Emulsifies fat so larger SA
What does HCl do in the digestive system?
Kill bacteria
Make the optimum pH
Advantages of enzymes in industry?
Less energy
Faster
Effective
Lower cost to run
Disadvantage of enzymes in industry?
Expensive to buy
Need food and oxygen
Use of protease in industry?
Baby food
