Download - cellstructurefunction1-101211104112-phpapp01
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
1/28
Cell Structure
& Function
Adapted from http://koning.ecsu.ctstateu.edu/cell/cell.html
Hopkins 2010
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
2/28
Cell Theory
All living things are made up of cells.
Cells are the smallest working units of all
living things.
All cells come from preexisting cells
through cell division.
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
3/28
Definition of Cell
A cell is the smallest unit that is
capable of performing life
functions.
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
4/28
Examples of Cells
Amoeba Proteus
Plant Stem
Red Blood Cell
Nerve Cell
Bacteria
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
5/28
Two Types of Cells
Prokaryotic
Eukaryotic
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
6/28
Prokaryotic
Do not havestructuressurrounded by
membranes Few internal
structures
One-celledorganisms,Bacteria
http://library.thinkquest.org/C004535/prokaryotic_cells.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
7/28
Eukaryotic
Contain organelles surrounded by membranes Most living organisms
Plant Animal
http://library.thinkquest.org/C004535/eukaryotic_cells.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
8/28
Typical Animal Cell
http://web.jjay.cuny.edu/~acarpi/NSC/images/cell.gif
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
9/28
http://waynesword.palomar.edu/images/plant3.gif
Typical Plant Cell
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
10/28
Cell Shape
Plants - Has a regular shape
Animal - has irregular or roundshape
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
11/28
Cell PartsOrganelles
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
12/28
Surrounding the Cell
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
13/28
Cell Membrane
Outer membrane of cell
that controls movement
in and out of the cell
Double layer
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
14/28
Cell Wall
Most commonly found
in plant cells &
bacteria
Supports & protectscells
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
15/28
Inside the Cell
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
16/28
Nucleus
Directs cell activities
Separated from cytoplasm by nuclear
membrane
Contains genetic material - DNA
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
17/28
Nuclear Membrane
Surrounds nucleus
Made of two layers
Openings allow
material to enter andleave nucleus
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
18/28
Chromosomes
In nucleus
Made of DNA
Contain instructions
for traits &characteristics
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
19/28
Nucleolus
Inside nucleus
Contains RNA to build
proteins
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
20/28
Cytoplasm
Gel-like mixture
Surrounded by cell membrane
Contains hereditary material
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
21/28
Endoplasmic Reticulum
Moves materials aroundin cell
Smooth type: lacks
ribosomes
Rough type (pictured):ribosomes embedded in
surface
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
22/28
Ribosomes
Each cell contains
thousands
Make proteins
Found on ribosomes& floating throughout
the cell
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
23/28
Mitochondria
Produces energy through
chemical reactions
breaking down fats &
carbohydrates Controls level of water and
other materials in cell
Recycles and decomposes
proteins, fats, andcarbohydrates
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
24/28
Golgi Bodies
Protein 'packaging
plant'
Move materials within
the cell Move materials out of
the cell
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
25/28
Lysosome
Digestives proteins, fats,and carbohydrates
Transports undigested
material to cell
membrane for removal
Cell breaks down if
lysosome explodes
Usually not found inplants
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
26/28
Vacuoles
Membrane-bound
sacs for storage,
digestion, and waste
removal Contains water
solution
Help plants maintain
shape
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
27/28
Vacuoles
Plant bigger
vacuoles
Animal smallervacuoles
http://library.thinkquest.org/12413/structures.html
-
7/28/2019 cellstructurefunction1-101211104112-phpapp01
28/28
Chloroplast
Usually found in plant
cells
Contains green
chlorophyll Where
photosynthesis takes
place
http://library.thinkquest.org/12413/structures.html