Objects and Processes Inside Cells

Proteins

Amino Acids

Peptide Bonds

Polypeptides

Lipids

Trigylcerides

Condensation Reaction

Saturated

No double bonds

Unsaturated

Double bonded carbon

Steroids

Cholesterol

High density lipoprotein

Low density lipoprotein

Testosterone & Estrogen

Cis & Trans

Cis

Has bends

Trans

Straight

Phospholipid

Fat + phosphate group

Amphipatic

Carbohydrates

Bonds & Water

Covalent

Non-polar

Difference in electronegativity less than .4

Equal sharing of electrons

Polar

Difference in electronegativity less than 1.7

Unequal sharing of electrons

Ionic

Difference in Electronegativity greater than 1.7

Hydrogen Bonds

Between molecules