Enzymes Flashcards
1
Q
What are enzymes?
A
A functional protein that acts as a biological catalyst to speed up reactions
2
Q
How do enzymes speed up chemical reactions?
A
By lowering the activation energy
3
Q
What is the activation energy?
A
The minimum amount of energy needed for a reaction to take place
4
Q
Can enzymes be used repeatedly?
A
Yes
5
Q
What are enzymes a type of?
A
Protein
6
Q
What is an intercellular enzyme?
A
Enzymes that work within cells (e.g catalase)
7
Q
What is an extracellular enzyme?
A
Enzymes that work outside the cells that made them (e.g amylase in saliva)
8
Q
Where can enzymes act?
A
They can act at a cellular level (e.g respiration) or they can work for the organism as a whole (e.g digestion)
