Proteins

Question 1

Proteins

Answer 1

Diverse group of biological macromolecules

Question 2

Proteins (7 functions)

Answer 2

• Enzyme catalysis
• Defense
• Transport
• Support
• Motion
• Regulation
• Storage

Question 3

What are proteins made up?

Answer 3

20 different amino acids

Question 4

o R Group

Answer 4

•	Nonpolar amino acids
o	Leucine
	-CH2 and -CH3
•	Polar uncharged amino acids
o	Threonine
	Oxygen (-OH)
•	Charge amino acids
o	Glutamic acid
	Acids or bases that can ionize
•	Aromatic amino acids
o	Phenylalanine
	Organic (carbon) ring

Question 5

o Peptide bond

Answer 5

 Covalent bond that links two amino acids

Question 6

o Polypeptide

Answer 6

 Amino acids linked by peptide bonds

Question 7

What determines protein function?

Answer 7

Shape

Question 8

• Primary structure

Answer 8

o Amino acid sequence

Question 9

• Secondary structure

Answer 9

o	Only portion of proteins that form hydrogen bonds
o	Polypeptide backbone
o	Regions of protein
	Cylindrical (a helices)
	Planer (B sheets

Question 10

o Denatured

Answer 10

 Fully unfolded

Question 11

• Quaternary

Answer 11

o Two or more polypeptide chains

Question 12

o Motifs

Answer 12

 Similar structures

 Like a word compared to letters

Question 13

o Domains

Answer 13

 Functional units within a larger structure

 Substructure within tertiary structure of a protein

Question 14

Chaperone Proteins

Answer 14

o Help other proteins to fold correctly