General Enzyme Knowledge
Activation Energy
Enzymes
Enzyme-Substrate Complex
Catalase Lab
100
Enzymes are named after the substrate they react with - replacing the "ose" with "ase". This is the enzyme that breaks down Lactose.
What is Lactase?
100

Activation energy is the energy needed to start a ________.

What is a reaction?

100
Enzymes _________ reactions in the cells.
What is speed up?
100

This is the term used when the enzyme is actively operating on the substrate, and the two "hug" each other causing an induced ___________

What is induced fit?

100

True or False, Hydrogen peroxide was the substrate in this lab.

What is True.

200
True or False: Enzymes are used up during their reaction.
What is False? Enzymes do not get used up. They are free to react again and again. This is why they are only need in the body in small amounts.
200
True or False: All reactions require the same amount of ENERGY to get started.
What is false?
200
Enzymes are this type of macromolecule.
What is proteins?
200
This is what the Enzyme acts upon.
What is a substrate?
200

True or False, Catalase was the enzyme in this lab.

What is True.

300
Explain what is meant by "Enzymes are substrate specific"
What is they only react with certain substrates that fit into the active site. Think Lock and Key!
300
This protein will reduce the activation energy.
What is an enzyme?
300

Every enzyme has an optimum _______ and ________ where it works best.

What is pH & temperature?

300
Where the specific substrate fits in the enzyme.
What is an active site?
300

This is where the enzyme came from for this lab.

What is the potato?

400

Identify the type of inhibitor that binds to an allosteric site, resulting in a change of the enzyme's active site.

Non-competitive inhibitor (Allosteric Inhibitor)

400
An enzyme will ____________ the amount of activation energy required.
What is reduce?
400

This substance binds to the active site, blocking the substrate and inhibiting the reaction.

What is a competitive inhibitor?

400

The “new” substance created during the reaction.

What is a product?

400

This was one of the products of the catalase & hydrogen peroxide reaction (the bubbles were what molecule).

What is Oxygen?

500

The key to an enzymes function is its ___________

What is: Shape (of active site)?

500

Enzymes lowers activation energy & speeds something up. Another word for this is a ____________.

What is catalyst?

500

Name the molecules that may increase the enzyme's ability to bind to its substrate (enzyme helper molecules).

What are activators (cofactors and coenzymes)?

500

After the reaction, the enzyme is _________ (if it isn't denatured)

What is reusable or unchanged?

500

This is why no bubbling was observed with the boiled potato trial. (term & explanation)

What is denatured? The active site was no longer the same shape and could not react with the substrate hydrogen peroxide.

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