Protein Structure

Question 1

Protein starts to fold into shape once it’s _____.

Answer 1

Synthesized

Question 2

Primary structure

Answer 2

Unique sequence of amino acids held together by peptide bonds, determined by gene sequence

Question 3

Secondary

Answer 3

Repeated coils and folds in polypeptides, helices or sheets, come together by hydrogen bonding

Question 4

Tertiary

Answer 4

2 or more secondary structures held together by interactions between side chains

Question 5

Quaternary

Answer 5

Multiple folded polypeptides in association with one another

Question 6

Globular

Answer 6

Eg. Hemoglobin (2 alpha and 2 beta chains)

Question 7

Fibrous

Answer 7

Eg. Collagen 3 polypeptides coiled

Question 8

Protein structure is affected by: (4)

Answer 8

pH
Solvent
Solute concentration
Temperature

Question 9

How can ph temp solvent and solute concentration affect protein structure

Answer 9

Disrupts forces holding different levels of structure together

Question 10

Protein is ______ when it has lost proper 3D structure and _____ functions

Answer 10

Denature, loses

Question 11

Chaperonin

Answer 11

Assist the proper folding/refolding of other proteins