Contributed by:
We will study the types of a cell. We will also define the organelles and the structure of cells. A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic in size, cells are the smallest structural units of living matter and compose all living things.
1.
Cells:
The Basic Units of Life
2.
How big is a cell?
• http://www.cellsalive.com/howbig.htm
3.
The Cell Theory
1. All organisms are made of cells.
2. The cell is the basic unit of life in all
living things.
3. All cells come from existing cells.
THIS IS IMPORTANT BECAUSE IT SHOWS THAT
ALL LIVING THINGS SHARE A SIMILAR
4.
Two Types of Cells
All cells, whether they are prokaryotic or eukaryotic,
have some common features
5.
Organelles
Organelles are structures that enable
the cell to live, grow and reproduce.
6.
Two Types of Cells
Prokaryotic Cells:
• Have no membrane
covered nucleus
• Have no membrane
- covered organelles
• Have circular DNA
• Are bacteria
7.
Two Types of Cells
Eukaryotic Cells:
• Have a nucleus
• Have a membrane -
covered organelles
• Have linear DNA
• Are all other cells
8.
Organelles
Organelles are structures that enable
the cell to live, grow and reproduce.
9.
Cell Membrane
• Outer layer of cell
• Allows nutrients
into the cell and
wastes outside of
the cell
“Gate into the
city” Cell Membrane
10.
Cytoplasm
• Cytoplasm a
jelly-like fluid
contained in
the cell that
holds the
organelles.
11.
The Nucleus
DNA • The control
center of the
cell
• Contains the
Cell’s DNA
Nuclear Membrane
“Mayor’s office”
12.
Mitochondria
Outer Membrane
• Power center of
cell
• Provides the
energy the cell
needs to move,
divide, etc.
Inner Membrane
“Electric company of
the cell”
13.
Ribosomes
• Site where
proteins are
made
• Cell parts are
made of
proteins “Factories of the
cell”
14.
Endoplasmic Reticulum
Endoplasmic Reticulum
• Transportation
system of cell
• Rough ER-
ribosome's
attached
• Smooth ER- no
Ribosomes ribosome's
“Roadways of the cell”
15.
Golgi Complex
• Packaging house of
cell
• Packages,
processes, and
ships out the
stuff the cell
makes
“UPS of the cell”
16.
Lysosomes
• Digests food
particles and cell
parts
– “Garbage men”
• Protects cell by
digesting foreign
invaders
– “Police men
17.
Vacuole
• Stores water,
food & wastes
Vacuole is largest
organelle in plant cell
18.
Cell Wall
• Found only in
plant cells
• Protects and
supports the cell
19.
Chloroplasts
• Found only in plant
cells
• Contains
chlorophyll (makes
plants green)
• Where
photosynthesis
takes place
20.
Plant or Animal Cell?
Found in Plant and Animal cells: Found only in Plant Cells:
• Nucleus • Chloroplasts
• Golgi Complex
• Mitochondrion • Cell Wall
• Lyosomes
• Endoplasmic
Reticulum
• Cell Membrane
• Ribosomes
• Vacuoles
+1-315-636-4485
+91 98151-74050 
