WorksheetsEnzymes & Chemical Reactions
Total questions: 10
Worksheet time: 5mins
The amount of energy needed to start a chemical reaction is called...?
Activation Energy
Endothermic Energy
Exothermic Energy
Biochemical Energy
Which of the following statements about reactants and products is FALSE?
The reactants are at the beginning of the chemical reaction
The products are at the end of the chemical reaction
Another name for the reactants is the substrate
Another name for the products is the enzyme
In an endothermic reaction...
Energy is absorbed
Energy is released
There is a net decrease in energy
There is less energy in the products than the reactants
In an exothermic reaction...
Energy is absorbed
There is a net increase in energy
There is less energy in the products than the reactants
There is more energy in the products than the reactants
In Photosynthesis energy is stored as ____________, therefore it is an _____________ reaction.
Sugar, Endothermic
Sugar, Exothermic
ATP, Endothermic
ATP, Exothermic
In Cellular Respiration, energy is released as _________, therefore it is a _____________ reaction.
ATP, Exothermic
ATP, Endothermic
Glucose, Exothermic
Glucose, Endothermic
How do enzymes speed up chemical reactions?
Lower the activation energy
Increase the temperature
Lower the pH
Add a competitive inhibitor
Enzymes are a type of....
Protein
Nucleic Acid
Lipid
Carbohydrate
What happens when an enzyme is denatured?
It loses it's shape
It loses it's function
It loses BOTH it's shape and it's function
It becomes a co-enzyme
Which of the following statements about reaction rates is FALSE?
An increase in temperature increases the rate of a chemical reaction
A decrease in substrate concentration increases the rate of a chemical reaction
A competitive inhibitor lower the rate of a chemical reaction
A co-enzyme increases the rate of a chemical reaction
