1. Cell
Functions
Biology 137

2. Cell Parts and Functions
Cell Membrane
Protects the cell
Lets things in and out of the cell
Location: around the cell
Nucleus
Control center, holds DNA
Location: inside the cell,
near the center

3. Cell Parts and Functions
Nucleolus (Nucleoli)
Makes ribosomes
Location: inside the nucleus
(dark spot)
Nuclear Membrane
Protects nucleus
Lets things in/out of nucleus (pores)
Location: around nucleus
cell

5. Cell Parts and Functions
Mitochondria
Makes energy/powerhouse
Location: in cytoplasm
Golgi Bodies/Apparatus
Modifies, sorts, and packages proteins and other materials from the E.R. for storage in the cell or to secrete out of the cell

6. Mitochondria

7. GOLGI APPARATUS

8. Cell Parts and Functions
Endoplasmic Reticulum (E.R.)
Site where lipid components of the cell membrane are assembled, along with proteins and other materials.
Two types: smooth and rough (has ribosomes)
Location: attaches from cell membrane to nuclear membrane
Rough E.R.

11. Cell Parts and Functions
Ribosome
Makes proteins
Location: in cytoplasm or
Attached to E.R.
Vacuole
Stores food and water
Location: in cytoplasm
Plants have a large, central
Vacuole. Animals have several small ones.

12. Vacuole

13. Cell Parts and Functions
Lysosome
Contains digestive enzymes
Destroys bacteria, old cell parts…
Location: in cytoplasm
Centrioles
Helps the cell to divide

15. Cell Parts and Functions
Cytoplasm
Gel-like substances, holds all
Organelles in cell
Location: in cell
Chromatin/Chromosomes
Contains genetic information/traits
Location: in nucleus

16. Cell Parts and Functions
Cilia
Short hair-like projections
Used for movement
Location: outside of cell
Flagella
Long whip-like tail

18. FLAGELLA

19. Cell Structures and Functions
Chloroplast
Traps suns energy and
Makes food
Location: in plant cells

20. Cell Wall Cell Wall Protects and supports plant Cells
Prevents water loss
Made of Cellulose
Location: outer layer of plant cells

21. CYTOSKELETON
Function: Support structure of cell and transport materials/organelles throughout the cell.
The highway of the cell.
Made of Microtubules (thin hollow cylinders) and Microfilaments (thin solid cylinders)
Location: Inside the cell

22. CYTOSKELETON

23. Cell Structures and Functions
Plastids
Stores extra food in
Plant cells
Location: in plant cell