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Transcript
Week 14, Day One
HW # 47- Review your Venn Diagram, Comparing a Cell
to a Factory worksheet. Make sure that you have written
your best answer.
Warm up
Please put last week’s warm up in the center of your table.
Name some things that humans produce (make). Where are
they made? How are they made (by hand, by machine, etc.)
Warm up Response
Homework Response/Check
D
• Complete the “Two Lab Conclusion”
• Use your iPad to view the A Cell is Like A Factory
power point.
• Answer the questions on the Comparing a Cell to a
Factory worksheet.
Using what you learned from Thursday’s Plant/Animal lab AND
Friday’s ipad study, write a two day lab conclusion.
In class, we have been studying _________________.
Specifically, we have been focusing on the difference between
plant and animal cells. Before beginning yesterday’s lab, I thought
that plant and animal cells were different because ___________. I
also that they were similar because _________________.
Throughout the course of the activities, I did a lot of observing.
I observed __________. I was doing this to see ___________. I
also used the ipad to find out ___________. What I observed
was _____________________ (2-3 sentences).
Through these activities, I learned that the reason plant and
animal cells are different is ______________. This shows me that
_______________: I would like to learn more about this subject
because __________________ . OR I still have a question about
the topic we are studying. I am wondering
___________________________________.
Extra slides for
information and
study
Cell Structure
& Function
http://koning.ecsu.ctstateu.edu/cell/cell.html
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.
Definition of Cell
A cell is the smallest unit that is
capable of performing life functions.
Examples of Cells
Amoeba Proteus
Plant Stem
Bacteria
Red Blood Cell
Nerve Cell
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
“Typical” Animal Cell
http://web.jjay.cuny.edu/~acarpi/NSC/images/cell.gif
“Typical” Plant Cell
http://waynesword.palomar.edu/images/plant3.gif
Cell Parts
Organelles
Surrounding the Cell
Cell Membrane
• Outer membrane of cell
that controls movement in
and out of the cell
• Double layer
http://library.thinkquest.org/12413/structures.html
Cell Wall
• Most commonly found
in plant cells & bacteria
• Supports & protects
cells
http://library.thinkquest.org/12413/structures.html
Inside the Cell
Nucleus
• Directs cell activities
• Separated from cytoplasm by nuclear
membrane
• Contains genetic material - DNA
Nuclear Membrane
• Surrounds nucleus
• Made of two layers
• Openings allow material
to enter and leave
nucleus
http://library.thinkquest.org/12413/structures.html
Chromosomes
• In nucleus
• Made of DNA
• Contain instructions for
traits & characteristics
http://library.thinkquest.org/12413/structures.html
Nucleolus
• Inside nucleus
• Contains RNA to build
proteins
http://library.thinkquest.org/12413/structures.html
Cytoplasm
• Gel-like mixture
• Surrounded by cell membrane
• Contains hereditary material
Endoplasmic Reticulum
• Moves materials around in
cell
• Smooth type: lacks
ribosomes
• Rough type (pictured):
ribosomes embedded in
surface
http://library.thinkquest.org/12413/structures.html
Ribosomes
• Each cell contains
thousands
• Make proteins
• Found on ribosomes &
floating throughout the
cell
http://library.thinkquest.org/12413/structures.html
Mitochondria
• Produces energy through
chemical reactions – breaking
down fats & carbohydrates
• Controls level of water and
other materials in cell
• Recycles and decomposes
proteins, fats, and
carbohydrates
http://library.thinkquest.org/12413/structures.html
Golgi Bodies
• Protein 'packaging
plant'
• Move materials within
the cell
• Move materials out of
the cell
http://library.thinkquest.org/12413/structures.html
Lysosome
• Digestive 'plant' for
proteins, fats, and
carbohydrates
• Transports undigested
material to cell membrane
for removal
• Cell breaks down if
lysosome explodes
http://library.thinkquest.org/12413/structures.html
Vacuoles
• Membrane-bound sacs
for storage, digestion,
and waste removal
• Contains water solution
• Help plants maintain
shape
http://library.thinkquest.org/12413/structures.html
Chloroplast
• Usually found in plant
cells
• Contains green
chlorophyll
• Where photosynthesis
takes place
http://library.thinkquest.org/12413/structures.html
Quick Review
• Which organelle is the control center of the cell?
Nucleus
• Which organelle holds the cell together?
Cell membrane
• Which organelles are not found in animal cells?
Cell wall, central vacuole, chloroplasts
• Which organelle helps plant cells make food?
Chloroplasts
• What does E.R. stand for?
Endoplasmic reticulum
http://www.youtube.com/watch?v=rABKB5aS2Zg&NR=1