1. Prokaryotic Cell Structure
Biology
Fall 2016

2. Prokaryotic Cell Structure
Prokaryotes- bacteria that are unicellular organisms that no not have a nucleus or membrane- bound organelles.
Aka bacteria (YouTube video)

3. Parts of a Prokaryotic Cell
Plasmid- genes separate from chromosomes which can carry antibiotic-resistant genes.
Look like Spaghetti O’s

4. Parts of a Prokaryotic Cell
Flagellum- some bacteria have long, whip-like projections that enable them to move.
Flagella-plural
Found in both animal and bacterial cells

5. Parts of a Prokaryotic Cell
Capsule- sticky capsule around the cell wall that enhances some bacteria to cause a disease.

6. Parts of a Prokaryotic Cell
Chromosome- single DNA molecule NOT enclosed in the nucleus.
This contains most of the bacteria’s genes.

7. Parts of a Prokaryotic Cell
Ribosomes- site of protein synthesis.
The suffix –sis means that it’s a process.
Synthesis means “to make new”
In this case, it means the process of making new proteins.
Proteins are macromolecules.

8. Parts of a Prokaryotic Cell
Pilus- extensions of the plasma membrane.
They “help” bacteria stick to a surface and also acts as a bridge where two bacteria can exchange DNA.
Pili- plural
Like cactus needles.

9. Parts of a Prokaryotic Cell
Plasma membrane- surrounds the cell and regulates what enters and leaves the cell.
Aka cell membrane
Aka lipid bilayer

10. Parts of a Prokaryotic Cell
Cell wall- surrounds the plasma membrane.
It gives the cell its shape and prevents osmosis (water entering) from bursting the cell.
(It’s in between the layers. Look for the blue part.)