1. Microorganisms

2. Types of Microorganisms
Bacteria – Kingdom Eubacteria
Fungi – Kingdom Fungi
Protists – Kingdom Protista

3. Bacteria
The smallest and most common microorganisms are prokaryotes— unicellular organisms that lack a nucleus.
Eubacteria have a cell wall that protects the cell and determines its shape.
Found everywhere

4. Bacteria Identified by characteristics such as: shape
the chemical nature of their cell walls
the way they move
the way they obtain energy

5. Bacteria Cocci - circular Bacilli – rod shape
Spirilla – spiral or cork screw shaped

6. Bacteria Can be heterotrophs or autotrophs
Reproduce by Binary Fission (asexual) or Conjugation (two cells)
May produce spores

7. What Are Fungi?
Fungi are eukaryotic heterotrophs that have cell walls.
Their cell walls contain chitin, a complex carbohydrate.
Reproduce asexually
Some produce spores

8. Structure and Function of Fungi
The body of a mushroom is part of a mycelium formed from many tangled hyphae. The major portion of the mycelium grows below ground. The visible portion of the mycelium is the reproductive structure, or fruiting body, of the mushroom.
Copyright Pearson Prentice Hall

9. Animal-like, Plant-like, and Fungi-like
Kingdom Protista

10. What Is a Protist? Eukaryotic Unicellular
Can be autotrophs, heterotrophs, or decomposers
Found in water

11. Protozoans – animal-like Protists
Ameobas
Paramecium
Euglena

12. Ameoba
Unicellular
No definite shape
Moves by pseudopods
Consumer

13. Euglena Unicellular Have chloroplasts Move by flagella
Has an eyespot (detects light) & contractile vacuole (removes water)
Autotrophs

14. Paramecium Unicellular Move by cilia Outer membrane – pellicle
Macronucleus – respiration, digestion
Contractile vacuole
Consumer

15. Algae Unicellular or Multicellular Produce 50% of oxygen we use
Primary food source of water animals
Classified by color
Producers