proteins

Question 1

What bonds are in secondary proteins

Answer 1

. Hydrogen bonds between amino acids

Question 2

What bonds are in tertiary proteins

Answer 2

. Ionic
. Disulfide - when two cysteine amino acids come together, S atom bonds to S in other cysteine, forming a disulfide bond.
. Hydrophobic + hydrophilic interactions - determines how protein folds up into final structure
. Hydrogen bonds

Question 3

Compare structure of fibrous proteins and globular proteins

Answer 3

. Fibrous are insoluble, globular are soluble
. Fibrous have hydrophobic outside, globular have hydrophilic outside
. Fibrous have secondary structure, globular have 3D folded structure
. Fibrous have lots of amino acid repetition, globular have little repetition
. Fibrous are tightly coiled to make a rope shape, globular are round, compound with multiple polypeptide chains.

Question 4

Heamoglobin

Answer 4

. hydrophilic
. globular w prosthetic iron harm group
2 alpha 2 beta glucose