Lipids *hydrophobicity based on structure Fats store energy *Glycerol *Fatty acid Fats can be: Saturated Unsaturated Macromolecules.

Lipids*hydrophobicity based on structure

Fats store energy

*Glycerol

*Fatty acid

Fats can be:

Saturated

Unsaturated

Macromolecules

Phospholipids

SteroidsCholesterol:

Macromolecules

Introduction to CellsHow we study cells:

*Light microscope

microscope

*magnification *resolving power

*Electron microscope

Two basic types:

*Transmission (TEM) *Scanning (SEM)

A view of the cell:

plasma membrane

*All cells are membrane bound, possess ribosomes and contain DNA

Red blood cell

outside of cell

inside of cellHydrophobi

c region

Hydrophilic region

Hydrophilic region

PhospholipidProteins

Carbohydrate side chain

*Two categories of cells: prokaryotic eukaryotic

A view of the cell:

Ribosomes

2. All cells possess ribosomes

3. All cells contain DNA

cytoplasmcytosol

*Additional components of any cell:

Small SubunitSmall Subunit

Large SubunitLarge Subunit

*nucleoid

A view of the prokaryotic cell:

*plasma membrane

*ribosomes

*cell wall

*capsule

*pili

Kingdom Monera – archaebacteria and eubacteria

A view of the eukaryotic cell:Elaborately compartmentalized systems

*Generalized animal cell

*Generalized plant cell

A view of the eukaryotic cell:nucleus

nuclear envelope

outer membraneinner

membranenucle

ar lamin

a

pore compl

ex

chromatinnucleolus

*nuclear lamina

*nucleolus

*chromatin

A view of the eukaryotic cell:ribosomes

*free *membrane-bound

endoplasmic

reticulumfree

bound

endomembrane system

*vesicles