Prokaryota

chuckiecalsado 308 views 5 slides Nov 08, 2010
Slide 1
Slide 1 of 5
Slide 1
1
Slide 2
2
Slide 3
3
Slide 4
4
Slide 5
5

About This Presentation

No description available for this slideshow.


Slide Content

Prokaryota

Core Concepts Prokaryotes are classified into two domains/kingdoms: Bacteria and Archaea Presence of peptidogycan in bacteria Some archaea have pseudopeptidoglycan Diverse cell wall, some made up of proteins called S layer

Bacteria are identified by their shapes, the chemical natures of their cell walls, the ways they move and the ways they obtain and use energy Bacteria reproduce asexually by binary fission. Through the process of conjugation, genes can move from one cell to another, thus increasing genetic diversity within bacterial populations

Prokaryotes play a crucial role in the biosphere, such as taking part in nutrient cycles and in symbiotic relationships. Also, they have both harmful and beneficial impacts on humans

Keywords Prokaryte bacteria archaea Peptidoglycan coccus bacillus Spirillum Gram-negative Gram-positive Flagellum autotroph heterotroph Phototroph chemotroph aerobe Facultative anaerobe obligate/strict anaerobe Binary fission conjugation endospore
Tags