Proteins

What percentage of organic material in animals are proteins?

• 60%

• 50%

• 70%

• 80%

What are the two major classes of enzymes?

• Structural

• Systematic

• Enzymatic

• Tertiary

What is the main composition of a protein?

• H, N, Mg, Li

• H, O, C, F

• H, O, C, N

• N, O, F, Ar

Tags

NGSS.HS-LS1-1

What is the name of the carbon in the middle of the amino acid?

• secondary carbon

• tertiary carbon

• alpha carbon

• primary carbon

How many bonds does Carbon like to form?

• Two

• Six

• Four

• Three

What is the pH of cells?

• 7.3

• 7.6

• 7.4

• 7.2

What are the different groups present in an amino acid?

• Alpha Carbon

• Amino Group

• Carboxyl Group

• R Group

What two groups form the peptide bond in an amino acid polymer?

• Carboxyl Group

• R group

• Alpha Carbon

• Amino Group

True or False: 20 different amino acids have different chemical properties

• True

• False

What are the different characteristics of R-groups?

• Non-Polar

• Polar

• Charged

• Amphipathic