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WorksheetsChemical reactions 3
Total questions: 10
Worksheet time: 5mins
Which of these does not change the rate of a chemical reaction?
Temperature
Concentration
Particle Size
pH
Asking it to speed up
Does a catalyst get used up during a reaction?
Yes
No
A biochemical reaction does not happen inside living things?
True
False
Photosynthesis and Respiration are examples of biochemical reactions
True
False
What are enzymes?
Something that speeds up a reaction
Something that is found in the body
A chemical made in the body that speeds up reactions
What effects the way an enzyme works?
pH and concentration
Concentration and particle size
Concentration and temperature
pH and temperature
When an enzyme stops working it is said to be?
Broken
Denatured
Natured
Old
What does a buffer do?
Keeps the pH constant
Stops things from hitting each other
Stops a video from downloading
Which of these is an enzyme?
HCl
Carbon Dioxide
Amylase
Hydrogen peroxide
Which of these is an enzyme?
HCl
Carbon Dioxide
Manganese Dioxide
Hydrogen peroxide
