Unit 2 Test - Proteins, DNA, Enzymes, and Mutations

What do enzymes end in?

• ase

• ose

• acid

• nucleotides

Enzymes are classified as what macromolecule?

• Carbs

• Lipids

• Proteins

• Nucleic Acids

Since enzymes are classified as proteins, what is the monomer of an enzyme?

• amino acids

• monosaccharide

• fatty acid and glycerol

• nucleotides

What are enzymes in reference to chemical reactions?

• Catalysts that speed up chemical reactions

• Catalysts that slow down chemical reactions

• building blocks that come together to create polymers

• molecules that break down all substrates

What impact does pH have on enzymes?

• Each enzyme has a specific optimum pH. Extreme pH (high or low) will denature an enzyme.

• Each enzyme can operate at any pH, so pH does not impact enzymes.

• pH can slow down enzymes, but never denatures them.

• Each enzyme has a specific optimum pH. All enzymes operate best at a pH of 7.

How do enzymes work? What is their impact on activation energy?

• Enzymes are catalysts that speed up chemical reactions by lowering the activation energy.

• Enzymes are catalysts that speed up chemical reactions by increasing the activation energy.

• Enzymes are catalysts that slow down chemical reactions by lowering the activation energy.

• Enzymes are catalysts that slow down chemical reactions by increasing the activation energy.

What does it mean to denature an enzyme?

• Change its shape

• Change its effectiveness

• Change its substrate

• Change its functionality

Define the word substrate

• The molecule that the enzyme acts upon

• The molecule that denatures the enyme

• The spot on the enzyme that binds to the product

• The enzyme after it is denatured

The active site...

• is where the substrate binds to the enzyme

• is where the enzyme is composed on amino acids

• is where the enzyme gets denatured

• is the entire enzyme

The substrate turns into the

• product

• enzyme

• active site

• amino acid