Download Organelle Web

Cell Organelle Webquest
Part I. Use the website
http://www.cellsalive.com/cells/cell_model.htm to
answer the questions about animal and plant
cells.
Click on “Animal Cell” underneath the diagram
to view an animal cell.
5. Click on “Return to Cell Diagram.” Click
on “Golgi.” What is the function of the
Golgi apparatus? Molecules which are
secreted pass through the golgi, why would
a cell need to discharge or expel materials?
The golgi packages and transports
molecules. Molecules that need to
leave the cell include waste
products or chemical signals.
1. Click on “Nucleus.” Describe the contents
and the function of the nucleus.
The nucleus contains DNA which controls the
cell and provides its unique characteristics. 6. Click on “Return to Cell Diagram.” Click
on “Cell membrane.” What type of
molecule makes up the double layer in the
cell membrane? Describe the function of
a. If all cells in your body have the
the cell membrane.
same genetic material, how do we
have a wide variety of cells (nerve
The cell membrane is made of two
cells, liver cells, skin cells, etc.) with
layers of phospholipids. It controls
different characteristics?
the entry/exit of nutrients like
Genes can be turned on or off to make cells
water and waste products.
unique even though they have identical DNA.
a. If a protein built by the cell was
destined for secretion, list the
sequence of organelles responsible
2. Click on “Return to Cell Diagram.” Click
for the production of and discharge
on “Cytosol.” Describe the contents of the
of the protein.
cytosol. What important activities take
place in the cytosol that maintain cell
Ribosome to Rough ER to Golgi to Cell
health?
Membrane
The cytosol contains proteins which keep
the cell healthy. Much of the cells
metabolism takes place in the cytosol.
7. Click on “Return to Cell Diagram.” Click
on “Lysosome.” Describe the function of a
lysosome. How are lysosomes similar to the
3. Click on “Return to Cell Diagram.” Click
digestive system?
on “Ribosomes.” Explain in one sentence
how the function of a ribosome.
Lysosomes break down waste and
Ribosome put protein together which is
molecules. They contain enzymes that
called protein synthesis.
hydrolize molecules, just like the
digestive system.
4. Click on “Return to Cell Diagram.” Click
8. Click on “Return to Cell Diagram.” Click
on “Rough Endoplasmic Reticulum (ER).”
on “Mitochondrion.” The mitochondria
What structures surround the rough ER?
provide what for a cell? Name the molecule
What happens to a protein after it’s
that cells use as an energy source.
synthesized on the rough ER?
The mitochonria provides energy
Ribosomes surround the rough ER. Proteins
for all the cells activities
made by these ribosomes are next transported
(growth, reproduction,
by the rough ER.
metabolism). ATP is the molecule
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the mitochondria makes for energy.
14. Label all the organelles discussed in the
previous questions in the plant and animal
cell.
Nucleus
Cell Membrane
9. Click on “Return to Cell Diagram.” Click
on “Smooth Endoplasmic Reticulum.” What
different functions does smooth ER play?
The smooth ER can make lipids, hormones and
also breaks down toxins.
Ribosomes (dots)
a. If a hormone or waste product is
made in the smooth endoplasmic
Smooth Er
reticulum, what organelles will it
pass through before leaving the cell?
Smooth ER to Golgi to Cell Membrane
Click on “Plant Cell” underneath the diagram to
view a plant cell.
Lysosome
Rough ER
Golgi
10. Move your mouse over the plant cell to see
the names of the organelles. Name five
organelles found in a plant cell that were
Mitochondria
also studied in the animal cells questions
above.
Nucleus, Mitochondria, Ribosomes, ER,
Lysosome, Cell Membrane
Cell Wall
11. What two organelles are found in the plant
cell that you did not see in the animal cell?
Cell
Membrane
Chloroplast, Cell Wall
Chloroplast
12. Click on “Cell Wall.” What is the function
of a cell wall?
Lysosome
The cell wall is a rigid barrier that keeps
the shape of the cell.
Golgi
Nucleus
13. Click on “Return to Cell Diagram.” Click Mitochonria
on “Chloroplast.” What is the role of a
chloroplast in plant cells?
Chloroplasts convert carbon dioxide into a
sugar through the chemical reaction of
photosynthesis.
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Smooth ER
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