The Ultimate Protein Quiz. AS Biology OCR.

1. What kind of reaction produces the peptide bond? (12, 8)
4. One complete haemoglobin molecule can bind to up to ______ oxygen molecules. (4)
6. A collagen molecule is made up of ________ polypeptide chains. (5)

2. Collagen is a _________ protein. (7)
3. _______________bonds form between the chains, which gives the structure strength. (8)
5. The monomers of proteins are...? (5, 5)
7. Heating a protein increases the kinetic.This causes the molecule to vibrate,most bonds are quite weak so easily broken. Whole tertiary structure can unravel and protein will no longer function. This is called? (12)
8. The strength of the molecule is increased further because each collagen molecule forms __________called cross-links with other collagen molecules next to it. (8, 5)
9. Fibrous proteins usually have structural roles while Globular usually have... (9, 5)
10. Two amino acids joined together form a.... (9)