Week 4 - Week 4: sections 3.1-3.5, 4.1-4.3 What do proteins...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Week 4: sections 3.1-3.5, 4.1-4.3 What do proteins do?- Defense. Proteins called antibodies and complement proteins attack and destroy viruses and bacteria that cause disease- Movement. Motor proteins and contractile proteins are responsible for moving the cell- Catalysis- Signalling- Structure- Transport Amino acids and Polymerization:- In every amino acid, a carbon atom is linked to a hydrogen atom , an amini group a carboxyl group and a R group- Amino acids link together to form proteins, nucleotides attach to one another to form nucleic acid, and single sugars connect to form complex carbohydrates.- Monomers polymerise through condensation reactions aka dehydration reactions, Hydrolysis: water in, monomer out. - The polypeptide babckbone , side chains present in each residue extend from it, it has directionality and it is flexible.- Oligeopeptide fewer than 50 or more amino acid- 50 or more amino acids are called proteins- Proteins can serve diverse functions in cells because they are diverse sizes and shape as...
View Full Document

Ask a homework question - tutors are online