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KINGDOM ARCHAEBACTERIA & KINGDOM EUBACTERIA Unit 2 - Biodiversity.

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Presentation on theme: "KINGDOM ARCHAEBACTERIA & KINGDOM EUBACTERIA Unit 2 - Biodiversity."— Presentation transcript:

1 KINGDOM ARCHAEBACTERIA & KINGDOM EUBACTERIA Unit 2 - Biodiversity

2 Bacteria – Prokaryotic Organisms  Both kingdoms (Eubacteria and Archaebacteria) were once collectively known as Kingdom Monera.  Prokaryotic  Means that it doesn’t have a nucleus. A nucleus holds all of a cells DNA, so the DNA in a bacteria cell is just “stuffed” inside the cell, along with free floating ribosomes (which help make proteins and have RNA).  Reproduces by binary fission  Since the cell’s DNA is not concentrated in one area all the bacteria cell has to do is double it’s genetic material, and split in half.

3 Binary fission – Asexual Reproduction

4 Bacteria – Single Celled Organisms  All bacteria cells are unicellular. All the characteristics of life occur in one cell.  If lots of cells divide and live in one area (usually cultured on agar) it is called a colony.

5 Kingdom Archaebacteria  Differ from Eubacteria in the fact that their RNA (found in ribosomes) is arranged differently and cell walls are different.  They are mostly anaerobic (don’t need oxygen)  Are found in very harsh environments  Very salty, acidic and hot places. Volcanic Vents, Hot springs, bottom of the ocean.  Thought to be the oldest living organisms on Earth.  It is believed that Earth’s atmosphere began as a mixture of poisonous gases, where only this type of organism could have survived.

6 Kingdom Eubacteria  Most common bacteria. Found everywhere  All known pathogens (the bacteria that makes you sick) are in K. Eubacteria  Also all the good for you bacteria (like in yogurt).  Examples include:  Streptococcus  Clostridium tetani  Clostridium botulinum  Lactobacillus

7 Pictures – Look alike to me??? I can see why they were once grouped together ArchaebacteriaEubacteria

8 Naming Bacteria – What’s your shape?  Often bacteria is named for it’s shape and arrangement.  Shapes (most common)  Coccus (sphere shaped)  Bacillus (rod shaped)  Sprillium (spiral shaped)  Arrangements (most common)  Strepto (chain)  Staphylo (cluster)  Diplo (pair)

9 Bacteria and you – Pros & Cons  Decomposers  “Fix” nitrogen into a useable form  Food production—yogurt, cheese, etc.  Sewage Treatment  Clean Oil Spills  Source of antibiotics  Disease  Syphilis, gonorrhea, tuberculosis, strep throat, botulism, etc.  Food Spoilage  Resistance to drugs. Positive ContributionsNegative Aspects


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