General Enzyme Knowledge
Nutrients
+Energy
Enzymes
Enzyme-Substrate Complex
Labs
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
The energy needed to start a reaction is called this.
What is activation energy?
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 causing the reaction.
What is an enzyme-substrate complex?
100

This reagent is used to identify monosaccharides.

What is Benedicts solution?

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

Lipids are made up of these.

What are glycerol and fatty acids?

200
Enzymes are this type of macromolecule.
What is proteins?
200
This is what the Enzyme acts upon.
What is a substrate?
200

This reagent is used to identify proteins, by reacting to the presence of _______.

What is biuret solution reacting with peptide bonds

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
Enzymes lowers activation energy & speeds something up. Another word for this is a ____________.
What is catalyst?
300
Where the specific substrate fits in the enzyme.
What is an active site?
300

Benedicts solution might change color in this digestive organ due to the presence of this valuable energy source

What is the small intestine and monosaccharides.

400
Describe the Lock and Key hypothesis using the terms substrate and enzyme. Which is the lock, which is the key?
What is Enzymes only react with certain substrates that match their shape correctly. Enzymes are the lock, substrates are the key.
400

A protein is made up of many of these.

What are amino acids

400
Enzymes are substrate specific, this means?
What is Enzymes only react with specific substrates that fit into the active site (Lock and key)
400
The “new” substance created during reaction.
What is a product?
400

Iodine test has this positive colour change in the presence of this carbohydrate.

What is blue in the presence of starch

500
Describe the differences between a synthesis reaction and a hydrolysis reaction.
What is: synthesis is a building up reaction (2 substrates join into one) hydrolysis is a breaking down reaction involving water (1 substrate breaks into two)
500

Carbohydrates are made up of units of this.

What is sugar?

500
True or false: For each reaction, there is a specific enzyme.
What is true?
500
After the reaction, the enzyme is _________.
What is reusable?
500

Benedicts solution colour change results from negative to positive. For this specific carbohydrate.

What is blue for negative, green/yellow for low/medium concentration, and red/brown for a high concentration of reducing sugars.

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