Bacterial cells are not parts of an organism but seperate ones themselves.They are prokaryotic and differ greatly from animal and plant cells.The DNA, or genetic material, is not in the nucleus.DNA is instead in the nucleoid (definition below)Bacterium also have a few organelles which are not listed above, such as: - Nucleoid:
- Part of a bacterium that contains DNA and is extremely similar in function to the nucleus of a eukaryotic cell.
- Pili:
- Hollow, hairlike structures made of protein that allow bacteria to attach to other cells.
- Capsule:
- A thick layer of polysaccaride that protects the cell.
- Flagella:
- a threadlike appendage sprouting from under the membrane on unicellular organisms that is used as the "motor" to navigate the cell through it's environment.
As you can see the animal and plant cells are much different than bacterial cells. Whilst bacterial cells are prokaryotic animal and plant cells eukaryotic.Plant and animal cells also have their slight differences(I say slight because the differences between plant and animal cells are not as prominent as the ones between plant/animal and bacterium).There are three main ones...- Plant cells have cell walls, animal cells do not.
- Plant cells are square, animal cells are round.
- Plant cells have chloroplasts (for photosynthesis), animal cells do not.
We hope you have enjoyed this page. We must give credit to Cellsalive.com (and many others) for the information on this page, and to Mrs Houck, the best biology teacher in the entire world!!!(I need this A+ that badly!!)("I" being Liz of course, since Tracy is the "Golden Child")<--- We would appreciate it if Mrs. Houck would ignore that little discourse.