WorksheetsEnergy & Enzymes
Total questions: 13
Worksheet time: 8mins
What is the purpose of an enzyme?
Allow a reaction to occur
Increase the activation energy
Catalyze reactions
Determine how many reactions will occur
Amino acids
Carbohydrates
Nucleotides
Phospholipids
The hydrolysis of ATP is ________. Select all that apply!
Endergonic
Exergonic
Spontaneous
Non-spontaneous
What will happen to the concentrations of A, B, and C when Enzyme 1 is deactivated?
A + Enzyme 1 --> B + Enzyme 2 --> C
A and B will decrease, C will increase
A will increase, B and C will decrease
A, B, and C will decrease
A will decrease, B and C will increase
Which of the following is true of an exergonic reaction? Select all that apply!
It has a positive Gibbs free energy value
Potential energy is higher in reactants
Energy is absorbed
It has a negative Gibbs free energy value
Which of the following are true energetic coupling? Select all that apply!
ATP hydrolysis can be paired with an exergonic reaction
An exergonic reaction is paired with an endergonic reaction
Two endergonic reactions are paired
One reaction provides energy for another reaction
What is the term for an enzyme being specific to the reaction is catalyzes?
ATP binding site
Phosphorylation
Translocation
Induced fit
Which of the following are true of the active sites on enzymes? Select all that apply!
They bind substrates (reactants)
They can catalyze different types of reactions
This is where products are formed
They are highly specific
They are consumed by the reaction
Which of the following is true of an endergonic reaction? Select all that apply!
It is spontaneous
Potential energy is higher in products
Energy is absorbed
It has a negative Gibbs free energy value
Which of the following correctly describes how enzymes catalyze reactions? Select all that apply!
They create more active sites
They are a reactant and are consumed by the reaction
They synthesize ATP
They lower activation energy
They undergo a conformational change
What is the transition state?
When old bonds are broken and new ones are formed
When the enzyme binds to the reactants
The energy required to break down the reactants
The energy required to form new products
The most stable state of the reaction
What is activation energy?
Chemical potential energy
The amount of energy needed to overcome the transition state
The amount of energy needed for enzymes to function
The amount of ATP available in a reaction
Enzymes require optimal ___________ to function. Select all that apply!
pH
Temperature
Color
Size
