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Cell Structures, Functions and
Transport
Two Types of Cells
Prokaryotic
•Eukaryotic
•
Prokaryotic



Do not have
structures
surrounded by
membranes
Few internal
structures
One-celled
organisms,
Bacteria
http://library.thinkquest.org/C004535/prokaryotic_cells.html
Eukaryotic


Contain organelles surrounded by membranes
Most living organisms
Plant
http://library.thinkquest.org/C004535/eukaryotic_cells.html
Animal
Intro to the Animal Cell
Cell Membrane


http://library.thinkquest.org/12413/structures.html
Outer membrane of cell
that controls movement
in and out of the cell
Double layer
Cytoplasm



Gel-like mixture
Surrounded by cell membrane
Contains hereditary material
Figure 7-5 Plant and Animal Cells
Animal Cell
Section 7-2
Cytoplasm
Nucleolus
Nucleus
Go to
Section:
Cell Membrane
Eukaryotic Cell Organelles and
Function
Nucleus
1.

Nickname: “The Control Center”
Function: holds the DNA
1.
Nucleolus


Spherical body in the nucleus of the cell
containing RNA and produces ribosomes
Figure 7-5 Plant and Animal Cells
Animal Cell
Section 7-2
Cytoplasm
Nucleolus
Nucleus
Go to
Section:
Ribosomes
Cell Membrane
Eukaryotic Cell Organelles and
Function
Ribosomes
2.


Function: makes proteins
Found in all cells, prokaryotic and
eukaryotic
Eukaryotic Cell Organelles and
Function
Endoplasmic Reticulum (ER)
3.


Nickname: “Roads”
Function: The internal delivery system of
the cell
Figure 7-5 Plant and Animal Cells
Animal Cell
Section 7-2
Cytoplasm
Nucleolus
Nucleus
Rough
Endoplasmic
Reticulum
Go to
Section:
Ribosomes
Cell Membrane
Smooth
Endoplasmic
Reticulum
Endoplasmic Reticulum

2 Types:
1. Rough ER:


2.
Rough appearance because it has
ribosomes
Function: helps make proteins, that’s why it
has ribosomes
Smooth ER:


NO ribosomes
Function: makes fats or lipids
Figure 7-5 Plant and Animal Cells
Animal Cell
Section 7-2
Cytoplasm
Nucleolus
Nucleus
Rough Endoplasmic
Reticulum
Golgi Complex
Go to
Section:
Ribosomes
Cell Membrane
Smooth Endoplasmic
Reticulum
Eukaryotic Cell Organelles and
Function
Golgi Complex
4.



Nickname: The shippers
Function: packages, modifies, and
transports materials to different location
inside/outside of the cell
Appearance: stack of pancakes
Figure 7-5 Plant and Animal Cells
Animal Cell
Section 7-2
Cytoplasm
Nucleolus
Nucleus
Rough Endoplasmic
Reticulum
Golgi Bodies
Go to
Section:
Ribosomes
Cell Membrane
Smooth Endoplasmic
Reticulum
Eukaryotic Cell Organelles and
Function
Lysosomes: circular, but bigger than
ribosomes)
5.


Nickname: “Clean-up Crews”
Function: to break down food into
particles the rest of the cell can use and
to destroy old cells
Figure 7-5 Plant and Animal Cells
Animal Cell
Section 7-2
Cytoplasm
Nucleolus
Nucleus
Ribosomes
Cell Membrane
Mitochondria
Rough Endoplasmic
Reticulum
Golgi Bodies
Smooth Endoplasmic
Reticulum
Eukaryotic Cell Organelles and
Function
Mitochondria
6.


Nickname: “The Powerhouse”
Function: Energy formation

Breaks down food to make ATP

ATP: is the major fuel for all cell activities that
require energy
Eukaryotic Cell Organelles and
Function
Vacuoles
7.

Function: stores water

This is what makes lettuce crisp

When there is no water, the plant wilts
Intro to the Plant Cell
Figure 7-5 Plant and Animal Cells
Section 7-2
Plant Cell
Vacuole
Cell Membrane
Go to
Section:
Evaluate: Animal Cell Drawing



Students will draw the animal cell and
label each organelle of the cell.
You can find this drawing on page 22 E
in your Science book
H.w. Pg

Now let’s talk about structures only
found in PLANT Cells!!
Figure 7-5 Plant and Animal Cells
Plant Cell
Section 7-2
Vacuole
Chloroplasts
Cell Membrane
Go to
Section:
Eukaryotic Cell Organelles and
Function
Chloroplasts
8.


Function: traps energy from the sun to
produce food for the plant cell
Green in color because of chlorophyll,
which is a green pigment
Chloroplasts
Figure 7-5 Plant and Animal Cells
Plant Cell
Section 7-2
Vacuole
Chloroplasts
Cell Membrane
Cell Wall
Go to
Section:
Eukaryotic Cell Organelles and
Function
Cell Wall
9.


Function: provides support and
protection to the cell membrane
Found outside the cell membrane in plant
cells
Plant Cell
Cytoplasm
Vacuole
Smooth ER
Ribosomes
Chloroplasts
Cell Membrane
Cell Wall
Nucleolus
Golgi Bodies
Nucleus
Mitochondria
Rough ER
Comparing Plant and Animal Cells
Plant
Animal