Organelles in an Animal Cell

1. What’s Inside a Cell?

2. Animal Cells
•Found in every living animal.
•Gives the animal its STRUCTURE and
lets the animal FUNCTION.
•Can be SPECIALIZED to do certain jobs.
•Can be different sizes and shapes.

3. What are organelles?
•Tiny structures inside a cell.
•They carry out specific jobs within the cell.
•Kind of like organs for a cell.

4. CELL MEMBRANE
•The cell membrane is the outer doors of
the cell. It forms the outer boundary that
separates the cell from its surroundings.
FUNCTIONS:
•It lets things in and out of the cell (like
doors).
•It holds everything together.

5. CYTOPLASM
•A jelly-like fluid that contains all of the
organelles of the cell. It is surrounded by
the Cell Membrane.
FUNCTIONS:
•Holds all the organelles inside of the cell in
a moving fluid.

6. CYTOPLASM
CELL MEMBRANE

7. NUCLEUS
•The “brains” or control center of the cell. It
is a large oval structure.
FUNCTIONS:
•Produces proteins to control all of the
cell’s activities

8. Nucleus
Rough ER

9. Nucleolus
•A small oval structure in the Nucleus that
makes Ribosomes.
FUNCTIONS:
•To make Ribosomes.

10. NUCLEUS = the whole peach
NUCLEOLUS = the pit

11. VACUOLES
•Large water-filled sacs floating in the
Cytoplasm. Like storage areas for the
cell. Not found in all animal cells. Some
cells have more than one.
FUNCTIONS:
•Store food and other materials needed by
the cell.

12. VACUOLE

13. MITOCHONDRIA
•Rod-shaped structures found in the
Cytoplasm. Known as the “powerhouses”
or batteries of the cell.
FUNCTIONS:
•They convert food energy into energy the
other organelles use to do their job.

14. MITOCHONDRIA

15. ENDOPLASMIC RETICULUM (ER)
•A maze of passageways in the Cytoplasm.
TWO KINDS OF ER IN ANIMAL CELLS:
1.Rough ER – Have Ribosomes attached
2.Smooth ER – No Ribosomes attached
FUNCTIONS:
•To carry proteins and other materials from one
part of the cell to other parts.
•Many of the cell’s chemical reactions occur
here.

16. ENDOPLASMIC RETICULUM
R
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18. LYSOSOMES
•Small round structures found in the Cytoplasm.
They contain digestive enzymes. They are like
the clean-up crew.
FUNCTIONS:
•They break down materials with their digestive
enzymes.
•Break down large food particles into smaller
ones.
•Break down old cell parts and recycle
•them.

19. LYSOSOMES
Chemicals

20. RIBOSOMES
•Small grain-like bodies found on the
Rough ER and floating around the
Cytoplasm. They are like protein
factories. There are more ribosomes in a
cell that any other organelle.
FUNCTIONS:
•They make Proteins

21. A Whole Ribosome

22. GOLGI COMPLEX
•Flattened sacs and tubes found in the
Cytoplasm. Like the cell’s mail room.
FUNCTIONS:
•Receives proteins from other Smooth ER.
•Packages the proteins up.
•Sends them to other parts of the cell.

23. GOLGI
COMPLEX

24. Cytoskeleton
•A web of protein in the cytoplasm
FUNCTION:
•Acts as a muscle and a skeleton
•Keeps the membrane from collapsing
•Helps some cells move

25. CELL WALL
•The outermost organelle of a cell (in plant
cells) that is made of cellulose (a sugar)
FUNCTION:
•Allow plants to stand upright
•Some take in water

26. Chloroplast
•A green organelle in plant cells made of
two membranes and contain their own
DNA
FUNCTION:
•Where photosynthesis takes place

27. ORGANELLES IN AN ANIMAL
CELL