Sajana
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The document discusses locomotion in microscopic organisms. It describes how amoebas use pseudopodia, paramecium use cilia, euglena use flagella, and bacteria can use flagella or move with the flow of water and wind without specialized organs. It provides examples of the locomotory organs - pseudopodia, cilia, and flagella - used by different microscopic organisms and how their movement allows for locomotion.
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Sajana
- 2. • Name of the student : Sajana.M.R • Name of the college: New B.Ed college Nellimoodu • Option : Natural Science • Register Number : 181/13376016
- 3. Standard : IX Subject : Biology
- 4. Topic : Locomotion in the microscopic world
- 5. pseudopodia
- 6. Pseudopodia is the locomotory organ in amoeba. Amoeba is a unicellular organism. The extensions of cytoplasm towards the direction of movement are the pseudopodia.
- 8. The cilia are the hair-like cytoplasmic filaments seen on the surface of the cell. Their rhythmic movement makes locomotion possible.
- 9. Euglena
- 10. The flagella are long cytoplasmic filaments. Certain microscopic organisms move by whipping these flagella in a fluid medium.
- 11. Bacteria
- 12. In bacteria locomotory organs like flagella are seen. In some bacteria locomotion is effected by the movement of a spiral shaped body. Some bacteria do not have specialised organs for locomotion. They move according to the direction of flow of water and wind.