Question 1

Enzymes are which kind of biomolecule?

Accepted Answer

Enzymes are a special type of protein

Question 2

Enzymes are biological catalysts. What is a catalyst?

Accepted Answer

They speed up a chemical reaction without being changed themselves

Question 3

How do enzymes speed up reactions?

Accepted Answer

By reducing the amount of activation energy needed to start a reaction

Question 4

What is a substrate?

Accepted Answer

The specific molecule that an enzyme will react with

Question 5

What does it mean to synthesize new molecules?

Accepted Answer

Synthesis builds up small pieces into larger molecules

Question 6

What does it mean to digest a molecule?

Accepted Answer

breaking apart large molecules into smaller pieces

Question 7

What is a reaction's activation energy?

Accepted Answer

The energy needed to make a chemical reaction happen

Question 8

What is the cell's metabolism?

Accepted Answer

The complete set of chemical reactions within an organism

Question 9

What is the enzyme's active site?

Accepted Answer

The part of the enzyme that the substrate binds or attaches to

Question 10

What are the products of a reaction?

Accepted Answer

The substances formed at the end of the chemical reaction

Question 11

What is the enzyme-substrate complex?

Accepted Answer

The temporary combination of the enzyme and its substrate

Question 12

How many specific reactions will an enzyme direct?

Accepted Answer

Enzymes only direct one (1) specific reaction. (This is why there are so many different enzymes in a cell.) The temporary combination of the enzyme and its substrate

Question 13

What are two main factors affect how well enzymes work?

Accepted Answer

Temperature and pH (acidity)

Question 14

What do we call substances that directly interfere with enzymes?

Accepted Answer

Inhibitors bind to enzymes and keep them from working

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