Proteins and Enzymes

What is a long chain of amino acids called?

• Polysaccharide

• Lipid

• Carbohydrate

• Polypeptide

• Nucleic acid

What is a peptide bond?

• Bond that holds two amino acids together.
• A bond that holds hydrogen and oxygen molecules together.
• A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.
• A bond that is formed by the sharing of electrons.

Tags

NGSS.HS-LS1-6

Proteins are made of many ____ bonded together.

• amino acids

• enzymes

• polypeptides

Tags

NGSS.HS-LS1-6

The protein structure that results from hydrogen bonds forming beta pleated sheets and alpha helices is:

• primary structure

• secondary structure

• tertiary structure

• quaternary structure

The protein structure that results from a sequence of amino acids is:

• primary structure

• secondary structure

• tertiary structure

• quaternary structure

What does an enzyme do?

• slows down chemical reactions

• speeds up chemical reactions

• increases the temperature of the reaction

Tags

NGSS.HS-PS1-5

What binds to the enzyme during the reaction?

• active site

• protein

• products

• substrate

What happens to an enzyme when the temperature gets very hot?

• The reaction slows down because the molecules are moving too slowly.

• The reaction performs at the optimum speed.

• The reaction does not occur because the enzyme has denatured.

Tags

NGSS.HS-PS1-5

All proteins

• have a unique structure that determines their unique function.

• are exactly the same in function but different in structure.

• are exactly the same in structure but different in function.

• are enzymes.

Tags

NGSS.HS-LS1-1

The order of amino acids determines the ______ and ultimately the function of a protein.

• shape

• color

• flavor

• texture

Tags

NGSS.HS-LS1-1