Transcript for Podcast

ofMacromolecules

Sonia Leng

WEB130

11/10/2010

What are we talking about today?

Biology’s most important concepts Macromolecules

Four groups: Carbohydrates Lipids Proteins Nucleic Acids

Macromolecules

What does each have in common? Each contains Carbon Each are polymers No need to worry about the organic

chemistry How are these made?

Via condensation reactions How are macromolecules broken down?

Via hydrolysis

Condensation & Hydrolysis

Carbohydrates

Three types: Monosaccharides Disaccharides Polysaccharides

Good examples of Disaccharides Maltose Sucrose Lactose

Lipids

All are hydrophobic (water-hater) There common lipids

Fats Phospholipids Steroids

What do each function for?

Proteins

Function What forms the structure of proteins? What are the four conformations of

proteins? Primary Secondary Tertiary Quaternary

Illustration of Conformations

http://comm

ons.wikim

edia.org/wiki/

File:M

ain_protein_structure_levels_en.svg

Nucleic Acids What forms the structure of Nucleic

Acids? What is their function? What are the names of the building

blocks of Amino Acids? What are their groups? Cytosine (Pyrimidine) Adenine (Purine) Guanine (Purine) Thymine (Pyrimidine) Uracil (RNA, Pyrimidine)

Wrap-up

Macromolecules Carbohydrates Lipids Proteins Nucleic Acids

Look over illustrations provided for certain macromolecules