Chapter 19, Amino Acids and Proteins Video Solutions, General, Organic, Biological Chemistry: Structures of Life

Problem 1

Classify each of the following proteins according to its function:
a. hemoglobin, oxygen carrier in the blood
b. collagen, a major component of tendons and cartilage
c. keratin, a protein found in hair
d. amylases that catalyze the hydrolysis of starch

Sam Limsuwannarot

Numerade Educator

00:42

Problem 2

Classify each of the following proteins according to its function:
a. insulin, which is needed for glucose utilization
b. antibodies, disable foreign proteins
c. casein, milk protein
d. lipases that catalyze the hydrolysis of lipids

Sam Limsuwannarot

Numerade Educator

01:20

Problem 3

Draw the zwitterion and give the three-and one-letter abbreviation for each of the following amino acids:
a. isoleucine
b. glutamine
c. glutamate
d. proline

Jonathan Temple

Numerade Educator

01:32

Problem 4

Draw the zwitterion and give the three- and one-letter abbreviation for each of the following amino acids:
a. Iysine
b. arginine
c. methionine
d. tyrosine

Jonathan Temple

Numerade Educator

02:53

Problem 5

Classify each of the amino acids in problem $19.3$ as polar or nonpolar. If polar, indicate if the $\mathrm{R}$ group is neutral, acidic, or basic. Indicate if each is hydrophobic or hydrophilic.

Natalie Johns

Numerade Educator

02:10

Problem 6

Classify each of the amino acids in problem $19.4$ as polar or nonpolar. If polar, indicate if the $\mathrm{R}$ group is neutral, acidic, or basic. Indicate if each is hydrophobic or hydrophilic.