BACTERIA 4 Prokaryotic Cells 4No Nucleus 4No Organelles 4Small! Dysentery.

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Presentation transcript:

BACTERIA 4 Prokaryotic Cells 4No Nucleus 4No Organelles 4Small! Dysentery

So what do Bacteria have?  Cell membrane  DNA (a circular strand)  Ribosomes  Cell Wall They may have…  Flagella (for motion)  Pilli (attach to a food source)  Endospores (protection in harsh conditions)

Cell Wall  Determines what type of antibiotic will work  2 types  Gram negative Gram positive Cell Wall

Kingdom ARCHAEBACTERIA 4 - CHEMOTROPHS and THERMOPHILES Live in Harsh Conditions. Thought to be similar to first life forms on earth Achaeoglobus -83 degress celsius

Kingdom EUBACTERIA 4 -”Normal” bacteria- Bacteria that we encounter everyday 4 3 types (identified by shape) 4COCCI, round 4BACILLI, rod 4SPIRALLI - spiral

COCCIBACILLI SPIRALLI

Disease E. Coli/Salmonella/botulism Tuberculosis/Acne Eat host (metabloize) Produce Toxins

Kingdom PROTISTA- Very Diverse! EUKARYOTES & DIRECT MULTICELLULAR DESCENDANTS  ALGAE (photosynthesis)  PROTOZOANS (eat and consume)  SLIME/WATER MOLD (absorb nutrients)  Basically any living eukaryotic cell that isn’t animal, plant or fungi

Eukaryotic- What they have  DNA in Nucleus  Has Organelles  Larger than Bacteria (usually)

PROTOZOANS MODES OF TRANSPORT Euglena- Flagella Paramecium-Cilia Amoeba- Pseudopodia

DISEASE Malaria Complex Life Cycle Mosquitoes (Anopheles) to humans Malaria ruptures red blood cells –Quinine kills malaria (Tonic water has it) Giardia Beaver Fever! Diarrhea (mild to severe)

DISEASE Toxoplasmosis (Toxoplasma gondii) Cat eats dead rat Protozoa comes out of cat feces Handling cat feces transfers it to humans (don’t play with cat poop) Fever, kills cells; not fatal Pregnant women can have fetuses that get brain damage

Protist are great! 1. Diatomaceous Earth- Natural Insect Killer 2. Sushi wrappings 3. Soup 4. Ice cream thickener 5. Kelp- I know you love kelp!

Kingdom Fungi  Hyphae  Made of long filaments: one cell thick  Mycelium  Tangled mass of hyphae DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY

Fungi Energy Source  Get nutrition from other organisms  Release digestive enzymes that break down substances- then they absorb nutrients JOHN WRIGHT / SCIENCE PHOTO LIBRARY

Friend or Foe Help plants absorb nutrients (Mycorrhizae) Mold AntibioticsAthlete’s foot and Gangrene Yeast (bread!)Poisonous Food (Pizza!)Dry rot What is a lichen? Why is it important? Read pages

Comparing Parts Virus Bacteria Protist Fungi Nucleus? Living? DNA? Chloroplast? Any Multicellular?

Comparing Parts Virus Bacteria ProtistFungi Nucleus? No No YesYes Living?No Yes YesYes DNA?Y/N Yes Yes Yes Chloroplast? No No Y/N No Any Multicell? No No Y/N Y/N