Cell Diversity

Cell Shape Cell shape depends on the function of the cell

Cell Size Cell size is limited by the outer surface area to its volume

3 Basic Parts of ALL Cells Plasma Membrane Cell’s outer boundary Barrier between inside and outside of cell Controls what goes in and out of the cell

3 Basic Parts of ALL Cells 2. Cytoplasm Region in the cell that contains Fluid Cytoskeleton Organelles except nucleus

3 Basic Parts of ALL Cells 3. Nucleus Control center of the cell Contains DNA

Prokaryotes Lack nucleus Lack organelles

Eukaryotes Have nucleus Have organelles Generally larger than prokaryotic cells

Colonies Genetically identical organisms that live in connected groups. Not multicellular

Multicellular Tissues- similar cells that carry out a specific function Organ- groups of tissues that perform a particular job Organ system- group of organs that accomplish a related task

Homework Due Monday, October 19, 2009 Chapter 4, Section 2 Review, page 76 (1-5)