Protozoan Groups Chapter 5. Protozoa ProtostomesDeuterostomes Coelomates Acoelomates Mollusca Crustacea Arachnida Insecta Annelida Echinodermata Chordata.

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Presentation transcript:

Protozoan Groups Chapter 5

Protozoa ProtostomesDeuterostomes Coelomates Acoelomates Mollusca Crustacea Arachnida Insecta Annelida Echinodermata Chordata Vertebrata Tunicata Pseudocoelomates Monera (Bacteria) Hemi- chordata Metazoa Parazoa Eumetazoa Bilateria † Mesozoa † Triploblasts * Diploblasts Arthropoda Cnidaria Ctenophora Radiata*

Basics Unicellular  small No organs or tissues (protoplasmic) Found in terrestrial, marine, aquatic and parasitic environments Reproduce sexually or asexually Nutrition: –Autotrophic –Heterotrophic

Groups we will talk about Flagellates (Chlorophyta, Axostylata, and Retortamonada) Ciliates (Ciliophora) Amebas (No Phyla) Apicomplexa

Outline Movement of Protozoa 1.Amoeboid 2.Ciliary 3.Flagellar 4.Unknown Protection of Protozoa –Ameba

Movement of Protists Flagellates (Chlorophyta, Axostylata, and Retortamonada) Ciliates (Ciliophora) Amebas Apicomplexa

Movement of Protists Flagellates (Chlorophyta, Axostylata, and Retortamonada) Ciliates (Ciliophora) Sarcodina (Amebas) Apicomplexa Flagellar movement Ciliary movement Amoeboid movement Parasites

Amoeba

I. Ameboid movement. Ameboid locomotion is used by certain protists and by numerous kinds of ameboid cells that are located within the bodies of most Metazoa.

(gel-like) (more fluid) Complex changes in cell fine structure, chemistry, and behavior.

Mechanisms of Ameboid movement.

Pseudopodia Types Lobopodia Filopodia Reticulopodia Axopodia

Pseudopodia Types Lobopodia Filopodia Reticulopodia Axopodia

Pseudopodia Types Lobopodia Filopodia Reticulopodia Axopodia

Pseudopodia Types Lobopodia Filopodia Reticulopodia Axopodia

Pseudopodia Types Lobopodia Filopodia Reticulopodia Axopodia

Pseudopodia Types Lobopodia Filopodia Reticulopodia Axopodia

HELIOZOANS ACTINOPHRYS SP. I COLLECTED THIS ONE IN WISCONSIN. Axopodia

Diversity of Locomotion in Amebas Creeping Rolling Walking Bipedal-stepping Filopodial creeping Typical with lobopodia

Movement II. Cilia (Ciliophora)

CATTLE RUMEN CILIATES ENTODINIUM CAUDATUM

CATTLE RUMEN CILIATES ENTODINIUM CAUDATUM SURFACE ULTRASTRUCTURE

Movement of Paramecium

What is that?

Cilia act like walking legs!

Compound Ciliature The function of some cilia is not only movement but feeding Feeding currents

Example of ciliates with compound ciliature Vorticella Stentor

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