Catalysts

Question 1

What is a catalyst?

Answer 1

Something that speeds up the reaction without being changed.
Doesn’t change products or reactants.
Small amounts needed for reactions
They decrease the activation energy required
This means that more collisions will be able to start the reaction.

Question 2

How do enzymes control cell reactions?

Answer 2

Enzymes are biological catalysts this speeds up the chemical reactions in living things . These reaction include respiration photosynthesis and protein synthesis

Question 3

How are enzymes used in everyday life?

Answer 3

Used in alcohol to ferment things from yeast cells

And they Catalyse the reaction that converts sugars into ethanol and carbon dioxide.