Structure of Bacteria

By: Fiona Koshy


-contains a few large intracellular structures

-most don't have membrane bound organelles

-genetic material floats around in the cytoplasm

Prokaryotic Cell

-doesn't contain a nucleus

-smaller size ribosomes

-single, circular chromosome (double stranded DNA)

-reproduces through binary fission

-no mitochondria, chloroplasts, golgi apparatus, and endoplasmic reticulum present

3 Main Shapes of Bacteria

Cell Wall

-in most bacteria, a cell wall is present

-beneath the cell wall there is a cell membrane made of peptidoglycan

-peptidoglycan: polypeptides bonded to modified sugars


-some have flagella which allow bacteria to move around its environment

-without flagella, bacteria can't move on its own

-a flagella: a threadlike structure containing whiplike hairs that allow bacteria to move


"Bacteria Cell." Interactive Bacteria Cell Model. N.p., n.d. Web. 11 Mar. 2015

"Fastbleep." Bacterial Cell Structure and Function. N.p., n.d. Web. 12 Mar. 2015.

"Structure and Function of Bacterial Cells." Structure and Function of Bacterial Cells. N.p., n.d. Web. 12 Mar. 2015.