MICROBIOLOGY MICROBIOLOGY microbiology m

ALGAE AND FUNGI

1. Hello Everyone!

2. Gie Jay JE Ac members Lyn

3. Spelling bee!

4. Chapter 28 Protozoan and Algae group 1

5. learning objectives identify the various types and characteristics of protozoa and algae explain the types and characteristics of protozoa and algae

6. Protozoan Protozoa (sg.: protozoan or protozoon; alternative plural: protozoans) are a polyphyletic group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic debris. Historically, protozoans were regarded as "one-celled animals" Animal-like protists

7. Amoeba

8. Paramecium

9. Plasmodium

10. Trypanosoma

11. Tsetse fly

12. Giardia

13. classification of protozoans Phylum Sarcodina Phylum Ciliophora Phylum Zoomastigina or Mastigophora

14. Classificaton of protozoans Phylum Sporozoa

15. Phylum Sarcodina At present, there are about 40000 species of the Class Sarcodina This group consists of protists that move and take in food by means of false feet called pseudopodia. Pseudopodia are formed when the cell membrane extends through the internal movement of the cytoplasm as a sarcodine moves

16. All sarcodines are feed by phagocytosis Amoeba proteus - most common sample of this group

17. Phylum Phylum Ciliophora (also known as Ciliates) is a group within the kingdom Protista characterized by the presence of cilia, which are hair-like structures that cover their surface. Ciliophora

18. Phylum Zoomastigina Phylum Zoomastigina (also known as Mastigophora) is a group of protists characterized by the presence of one or more flagella, which are whip-like structures used for movement.

19. Phylum Sporozoa Sporozoa, also known as the Apicomplexa, is a phylum of parasitic protozoans that are non-motile in their mature forms and reproduce through spore formation.

20. Algae

21. Algae Algae (sing., alga) are numerous eukaryotic, microscopic or macroscopic, plant-like organisms. They are also classified as autotrophic protists, because they have the ability to perform photosynthesis. The Plant-Like Protists

22. General Structure of Algae Unicellular algae Colonial algae filamentous algae

23. classificaton of protozoans thalloid algae

24. Unicellular algae Mostly aquatic and form the group of water- surface microorganisms called phytoplankton. These microorganisms provide food for quite a number of aquatic organisms. They also provide us with a great amount of oxygen to breathe.

25. Colonial algae groups of independent cells that move and function as a unit. They exhibit division of labor among members. This allows them to move, feed, and reproduce efficiently through cell specialization.

26. filamentous algae consists of cells arranged in a linear manner. This type of alga also has structures that anchor the organism to the ocean bottom.

27. thalloid algae the cells divide in many directions to create a multicellular form. These algae, which can be very large and become more complex in form, are often modified into rootlike, stemlike, or leaflike parts. They are more commonly called seaweeds

28. Economic Significance of Algae Unicellular algae that comprise the phytoplankton serve as food for most aquatic organisms.

29. Economic Significance of Algae The cell walls of brown algae maintain alginic acid, a source of commercially important alginates. Alginates are polysaccharides used to make gels as food.

30. Economic Significance of Algae Carrageenan, a sticky polysaccharide, is found in the cell walls of tid algae.

31. Economic Significance of Algae Far back in 1670, the Japanese were already harvesting Porphyra tenera, red algse commonly called nort, from Tokyo Bay. Like non, algae harvested front the sea have many uses in some parts of the world, seaweeds are eaton frush, boiled, stewed, fried, or even cooked into bread

32. Economic Significance of Algae Diatoms , the famous golden-brown algae, are acclaimed for their photosynthetic value. Aside from this, diatoms are also known for thin, rigid cell walls containing silicon dioxide.

33. Economic Significance of Algae Because of this, diatom shells do not decompose Instead, they sink when they die and form a layer called diatomaceous earth . This formation is the source of many commercial products, like fertilizers, detergents, paint removers, and Insulators

34. Economic Significance of Algae Algae are not always beneficial. Have you heard about the red-tide phenomenon? It is the discoloration of some parts of the ocean, brought about by the increased population of dinoflagellates

35. Economic Significance of Algae Gonyaulax is a common dinoflagellate that produces toxins

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