complete solutions 100% correct.
Portage Biochem Module 3 with 103
complete solutions 100% correct.
Proteins - ANSWER Perform work in cell.
Number of different proteins in human body - ANSWER Over 20,000
Protein transport function - ANSWER Move molecules around cell and organism. Ex: hemoglobin carries
O from lungs to tissues
Protein hormone function - ANSWER communicate messages between cells. Ex: relaxin relaxes pelvic
ligaments during birth
Protein catalysis function - ANSWER Enzymes. Speed up or catalyze reactions. Ex: protease, breaks down
other proteins
Protein structure function - ANSWER Give strength to cells, organelles, and tissues. Ex: collagen
Protein protection function - ANSWER Help fend off bacteria and viruses, antibodies are proteins
Amino acids - ANSWER monomers of protein
Functional groups of in all amino acids - ANSWER carboxylic acid and amine group
C alpha - ANSWER Central carbon connecting amine and carboxylic acid functional groups.
Location of C alpha - ANSWER adjacent to carboxylic acid group
, Portage Biochem Module 3 with 103
complete solutions 100% correct.
Effect of pH 7.4 on amino acid fuctional groups - ANSWER Carboxylic acid group loses hydrogen; Amino
groups gain an extra proton
Non-polar aliphatic - ANSWER Glycine
Alanine
Valine
Proline
Leucine
Isoleucine
Methionine
Non-polar aromatic amino acids - ANSWER Phenylalanine
Tryptophan
Tyrosine
Characteristics of aliphatic amino acids - ANSWER small, can interact with other groups; often found on
interior of protein, away from water
Unique properties of proline - ANSWER non-flexible structure; side chain bonds to N
Characteristics of non-polar aromatic groups - ANSWER Larger than aliphatic; side chains contain ring of
carbons as functional group. Conjugated systems, absorb light well.
Which amino acid is used in the lab to determine presence of protein - ANSWER Tryptophan
Characteristics of polar, but neutral amino acids - ANSWER Side chains have dipole
Most can H bond - strong interactions with water
often found on outside of protein