Presentation is loading. Please wait.

Presentation is loading. Please wait.

PROTISTS Last Section of Microorganisms. Lesson Outline:  3 Types of Protists  Classification: Locomotion Locomotion Feeding Feeding Reproduction Reproduction.

Similar presentations


Presentation on theme: "PROTISTS Last Section of Microorganisms. Lesson Outline:  3 Types of Protists  Classification: Locomotion Locomotion Feeding Feeding Reproduction Reproduction."— Presentation transcript:

1 PROTISTS Last Section of Microorganisms

2 Lesson Outline:  3 Types of Protists  Classification: Locomotion Locomotion Feeding Feeding Reproduction Reproduction

3 3 Types of Protists  Amoeba  Euglena  Paramecium

4 Locomotion 1. AMOEBA - It rolls slowly on a surface (i.e. ground, leaf, etc). Must live in water. It looks like the tracks on a bulldozer. - It changes its shape by extending pseudopods (“false feet”). Pseudopods are created by cytoplasm pushing on the cell membrane. This is called amoeboid action.

5

6 Locomotion 2. EUGLENA > Flagellates - Must live in water - Uses its flagellum to move. Whips it in front/behind its body to propel itself through the water. - If there is too little water for this type of locomotion, the euglena can use amoeboid action to move.

7 Locomotion 3. PARAMECIUM > Ciliates - Must live in water - Uses its cilia to move. - Cilia move in waves and act as oars to propel the paramecium through the water

8 FEEDING  AMOEBA The amoeba extends its pseudopods around its prey The amoeba extends its pseudopods around its prey Where the pseudopods meet, a food vacuole is formed Where the pseudopods meet, a food vacuole is formed A lysosome joins/fuses with the food vacuole A lysosome joins/fuses with the food vacuole

9

10 Feeding in Amoeba continued  The enzymes within the lysosome start to digest the food  The nutrients released from the food diffuse into the cytoplasm of the amoeba  These nutrients are used in cellular respiration to produce ATP (energy)  Waste is removed when the vacuole fuses with the cell membrane and ejects the waste

11 Reproduction  Protist reproduction is asexual  The nucleus is replicated through the process of mitosis. All the DNA is copied exactly. Both the macronucleus and the micronucleus are replicated.  The cell is then split into two daughter cells through the process of fission.  The daughter cells are smaller than the original parent, but otherwise are identical.

12

13


Download ppt "PROTISTS Last Section of Microorganisms. Lesson Outline:  3 Types of Protists  Classification: Locomotion Locomotion Feeding Feeding Reproduction Reproduction."

Similar presentations


Ads by Google