B1.2.3 - Enzymes Flashcards
What is an enzyme made of?
Protein
What is an enzyme?
A biological catalyst
What does a biological catalyst do?
It speeds up a reaction without using itself up
Can enzymes catalyse the same reaction again after they catalyse it the first time?
Yes
Suggest a few reactions that enzymes help with in your body
They build larger molecules from small ones, such as in protein synthesis.
They break down larger molecules into smaller ones, such as in digestion.
What is the molecule that binds to an enzyme called?
Substrate
What is the active site?
The place where enzymes and substrates bond together
How many different molecules can enzymes bind to?
1
What is the name of the hypothesis used to explain the bonding of enzymes?
The lock and key hypothesis
What is formed when a substrate and an enzyme is formed?
An enzyme-substrate complex is formed
How do enzymes catalyse reactions?
The substrate bonds with the enzyme, which does the reaction quickly and then releases the substrate
