Cell%20parts%2009-0

How big is a cell?
http://www.cellsalive.com/howbig.htm

The Cell Theory
All organisms are made of cells.
The cell is the basic unit of life in all living things.
All cells come from existing cells.
THIS IS IMPORTANT BECAUSE IT SHOWS THAT ALL LIVING THINGS SHARE A SIMILAR STRUCTURE

Two Types of Cells
All cells, whether they are prokaryotic or eukaryotic, have some common features

Organelles
Organelles are structures that enable the cell to live, grow and reproduce.

Two Types of Cells
Prokaryotic Cells:
Have no membrane covered nucleus
Have no membrane - covered organelles
Have circular DNA
Are bacteria

Two Types of Cells
Eukaryotic Cells:
Have a nucleus
Have a membrane - covered organelles
Have linear DNA
Are all other cells

Organelles
Organelles are structures that enable the cell to live, grow and reproduce.

Cell Membrane
Outer layer of cell
Allows nutrients into the cell and wastes outside of the cell
Cell Membrane
“Gate into the city”

Cytoplasm
Cytoplasm a jelly-like fluid contained in the cell that holds the organelles.

The Nucleus
The control center of the cell
Contains the Cell’s DNA
DNA
Nuclear Membrane
Nucleolus
“Mayor’s office”

Mitochondria
Power center of cell
Provides the energy the cell needs to move, divide, etc.
Outer Membrane
Inner Membrane
“Electric company of the cell”

Ribosomes
Site where proteins are made
Cell parts are made of proteins
“Factories of the cell”

Endoplasmic Reticulum
Transportation system of cell
Rough ER- ribosome's attached
Smooth ER- no ribosome's
Ribosomes
Endoplasmic Reticulum
“Roadways of the cell”

Golgi Complex
Packaging house of cell
Packages, processes, and ships out the stuff the cell makes
“UPS of the cell”

Lysosomes
Digests food particles and cell parts
“Garbage men”
Protects cell by digesting foreign invaders
“Police men

Vacuole
Stores water, food & wastes
Vacuole
Vacuole is largest organelle in plant cell

Cell Wall
Found only in plant cells
Protects and supports the cell

Chloroplasts
Found only in plant cells
Contains chlorophyll (makes plants green)
Where photosynthesis takes place