Cells:Prokaryotic

vs.Eukaryotic

CellsCells – basic

unit of living organisms.

Level of organization: < cell < tissue < organ < organ system < organism

Animal Cells

Red Blood Cells

Nerve Cells

Stomach Cells

Single Cell Paramecium

Plant Cells

Plant Cells

Cells

There are MANY types of cells.

CellsCells can be divided into two

groups based on the presence of organelles.

Organelles – membrane bound structures with specific functions in some cells.

CellsProkaryotes – (pro

means first) cells that do not contain organelles.

DNA not contained in nucleus.

Seen in unicellular (one cell) like bacteria.

CellsEukaryotes - Cells that

contain membrane bound organelles.

Seen in multicellular organisms and unicellular organisms like protists, algae and yeast.

Allows chemical reactions to happen in different parts of the cell at the same time.