Advance polymers (60)

Proteins

ProteinsPolymers of amino acids covalently linked through peptide bonds Natural organic molecules.C, H, O, NMonomers.amino acids

Building blocks of proteinsThere are 20 different amino acidsAll 20 amino acids share the same basic structureEvery amino acid contains- an amino group- a carboxyl group- a hydrogen atom- a central carbon atom - R (alkyl/aryl) group

Amino Acid Structure

R Groups of amino acids Difference in amino acids.. R groupsR groupsimple or complexR groupsdifferent shapes & characteristics

Peptide bond -COOH group of one amino acid joined with the -NH2 group of the next amino acid through condensation polymerization

PolypeptideA long chain of amino acidsPOLYPEPTIDEProteins are composed of one or more polypeptides

Role of Proteins Structural roles.cytoskeletonCatalystsenzymesTransporterions and moleculesHormones

Structure of Proteins

Sensitivity of ProteinsTemperature pH Denature proteins

Nucleic Acids

Nucleic Acids Large and complex organic molecules that store and transfer genetic information in the cell Types of nucleic acidsDNA =deoxyribonucleic acidRNA = Ribonucleic acid

Building blocks of Nucleic AcidsMonomers of nucleic acids are nucleotidesComponents of a nucleotide- nitrogen base- sugar- phosphate

Deoxyribonucleic acid (DNA)Double helixFound in the nucleusStores hereditary information

Ribonucleic acid (RNA)Is a single helixCytoplasm of the cellHelps build proteinsCan act as an enzyme