Definitions
What are catalysts?
Catalysts are substances that speed up a reaction.
When there are catalysts in the reaction, the rate of reaction will:
Increase.
What does amylase break down?
Carbohydrates.
BONUS: Who discovered gravity?
Isaac Newton.
What are biological catalysts also called?
Enzymes.
Do catalysts change in a reaction?
No! They remain unchanged.
When enzyme concentration is low, the rate of reaction is:
Low.
Name three facts about catalysts.
Three examples of correct answers:
They speed up a reaction.
They can be recovered and reused.
They can be used in industrial processes.
What is catalase?
Catalase is an enzyme that speeds up the breakdown of hydrogen peroxide.
Without catalysts, would reactions still occur?
Yes, but they would be slower.
Enzymes are used to:
Speed up the breakdown of molecules of food in the digestive system so that they can be absorbed into the blood.
Name three enzymes in the stomach.
Lipase, pepsin, amylase, sucrase, lactase, protease, etc.
What is the name of the waste product formed in the reactions in the cells of plants and animals?
Hydrogen peroxide.
Catalysts cannot be recovered and reused. True or false?
False! They can be recovered and reused over and over.
Lipase and amylase are examples of what?
A) Proteins
B) Biological catalysts
C) Digestive enzymes
D) All of the above
D) All of the above
BONUS: What is the name of the physicist who created Ohm's law? (Full name)
Georg Ohm.
What is digestion?
Digestion is the breakdown of materials.
Catalysts are often used up in __________ processes.
Industrial processes.
Describe the structure of enzymes. What are they made of?
Enzymes are made of amino acids that are chained together.
BONUS: What is the hardest natural substance on earth?
Diamond.