Presentation is loading. Please wait.

Presentation is loading. Please wait.

BACTERIA Friend Or Foe?.

Similar presentations


Presentation on theme: "BACTERIA Friend Or Foe?."— Presentation transcript:

1 BACTERIA Friend Or Foe?

2 3 main shapes of bacteria:
Round = coccus Rod = bacillus Spiral = spirilla diplococcus streptococcus

3 REPRODUCTION Binary Fission splits into 2 new Conjugation
exchange of genetic material

4 CLASSIFICATION KINGDOM MONERA All bacteria used to be classified under
Now they have been divided into two kingdoms:

5 ARCHAEBACTERIA Prokaryotes (NO nucleus) Cell walls w/out Peptidoglycan
genes/DNA similar to eukaryotes (!) *live in EXTREME environments such as. . .

6 EUBACTERIA Prokaryotes (no nucleus) more of these live everywhere
cell wall contains Peptidoglycan Found in . . .

7 Kingdom Protista 1

8 Animal-Like Classified based on Means of Locomotion How they move 5

9 Move by Flagella 8

10 Plant-Like Eukaryotes Most unicellular, but some multicellular
Autotrophic – contain chlorophyll & make food by photosynthesis Found in freshwater, marine, and moist soil habitats Range in size from microscopic to seaweeds hundreds of feet in length 10

11 Single celled algae Volvox Spirogyra Chlamydomonas 11

12 12

13 Multicellular 13

14 Diatoms Have cell walls made of “glass” 16

15 Fungi-Like Slime molds water molds Includes slime molds & water molds
Multicellular, heterotrophic Little tissue specialization Usually small & live in moist or watery habitats Act as decomposers breaking down dead organic matter Slime molds water molds 17

16 Slime molds Feed by absorption- -break down dead organic matter
May be saprophytes or parasites Make a reproductive structure or fruiting body that produces spores Often found on decaying wood or leaves 18

17 water molds Aquatic water molds are parasites on fish forming furry growths on their gills May act as decomposers in water of dead plants & animals May be pathogenic to plants Phytophthora infestans caused blight in potatoes (Irish Potato Famine in 19th century) 19

18 Protista Algae are a source of food in the aquatic
ecosystem and produce oxygen Plant Pathogen clip African sleeping Sickness Malaria Protista Sushi Termite Guts Sometimes used in ice cream, pudding and soups. Red Tides Chemical derived from algae can be used to treat stomach ulcers 22


Download ppt "BACTERIA Friend Or Foe?."

Similar presentations


Ads by Google