1. Paramecium h

2. Paramecium- Biological Organization
Domain – Eukaryota (having a nucleus)
Kingdom - Protista
Phylum – Ciliophora
Species -Paramecium

3. Characteristics
Called ‘Ciliates’ – They have short hair-like structures called cilia that help with movement and with feeding
Single-celled organisms
Found in fresh water, some in salt and brackish water all over the world.
Heterotrophs feeding on bacteria and single-celled algae

4. Locomotion (movement)
Individual cilia bend and straighten rapidly in such a way that the paramecium is propelled through the water

5. Structure
(Macronucleus)
pellicle

6. 1 Cilia 2 Pellicle 3 Macronucleus 4 Micronucleus 5 Contractile vacuole
1. used for movement
2. Thick outer membrane –
Gives it shape
1 Cilia
2 Pellicle
3. Controls the cell’s
activities
3 Macronucleus
4. Can have many of these; contain the
chromosomes and areused only during
reproduction
4 Micronucleus
5 Contractile vacuole
5. Remove excess water
out of the cell; works
like a pump.
6 Oral groove/
mouth pore
6. Takes in food here
7 Gullet
7. Food is digested
8 Food vacuole
8. Stores food
9 Anal pore
9. Get rid of undigested
food particles here
10 Trichocyst
11 Ectoplasm
10. Protection or defense against predators
12 Endoplasm
11. Thin outer layer of cytoplasm
12. Inner layer of cytoplasm that includes organelles

7. Structures
Trichocyst are the defense of the paramecium, a harpoon like structure that releases a toxin to kill or paralyze other microorganisms

8. Reproduction Asexually through binary fission

9. Sexual Reproduction
2 Paramecium connect at the oral grooves and exchange micronuclei

10. Oral Cavity & Contractile Vacuole