Protozoa
•Download as PPTX, PDF•
28 likes•21,782 views
Protozoa are the oldest and simplest known form of animal life. They are single-celled organisms that live in water or damp areas. They ingest food through cellular absorption and reproduce through fission. Protozoa are classified into five phyla - Sporozoa, Ciliophora, Rhizopoda, Zoomastigophora - based on characteristics like presence of spores, cilia, pseudopodia, or flagella. Sporozoa includes organisms like Plasmodium that cause malaria in humans. Ciliophora use cilia for movement. Rhizopoda use lobose pseudopodia to prey on other organisms. Zoomastigophora have flagella and
Recommended
More Related Content
What's hot
What's hot (20)
Viewers also liked
Similar to Protozoa
Similar to Protozoa (20)
Recently uploaded
Recently uploaded (20)
Protozoa
- 1. PROTOZOA
- 4. WHAT IS PROTOZOAoldest known group of heterotrophic life one-celled; smallest of animals live in water or damp areas
- 5. System Type Protozoas System Muscular-Skeletal No inner or outer skeleton. Digestion Takes in food via the water and stores the food in sacs called vacuoles. They eat tiny algae and bacteria. Nervous Has a very low level reaction to the world around it and does not have a brain per se. They can react to light and temperature changes. Circulation Has water flow in through the pores. The water contains the food and oxygen the protozoa needs. Respiration Takes in oxygen through the cell membrane and gives off carbon dioxide through the cell membrane. Reproduction Reproduces by splitting in half (fission) Excretion Vacuoles take in and get rid of water. Symmetry Usually asymmetrical. Coloration Very microscopic and is pale in color generally. CHARACTERISTICS
- 8. SPOROZOA commonly parasitic on vertebrate animals. best-known sporozoan: plasmodium invade red blood cells where they multiply, eventually escaping from the ruptured cells
- 10. CILIOPHORA complex freshwater or saltwater protozoans swim by the coordinated beating of their cilia (short, hairlike structures that cover the cell surface.) Best-known ciliate: paramecium
- 12. RHIZOPODA amoeboid organisms that produce lobose pseudopodia (false foot) preys on fungi, other protists, and small invertebrates
- 14. ZOOMASTIGOPHORA characterized by having one or more flagella. parasitize higher animals Best-known zooflagellate: Trypanosoma
- 16. Presented by: Agtuca, Lorelie Miranda, Sheila BSE-1
Editor's Notes
- Heterotrophic - an organism that uses organic carbon for growth by consuming other organismsProtozoa are thought to be the origin for the evolution of all multi-cellular organisms to which belong the plants, fungae, and animals.
- Protozoans act as decomposers by feeding on dead plants and animals in the environment. Decomposers like the protozoans are important components of the food chain; their disappearance will cause imbalance of nature.Protozoans help regulate the population of bacteria in the environment by feeding on them.Protozoans serve as food of many animals. Fishes, marine mammals (e.g. whales), mollusks, insects, and other animals depend on protozoans for survival.Protozoans are agriculturally important because they inflict diseases to poultry and livestock. For example veterinary diseases such as coccidiosis, babesiosis, anaplasmosis, and trypanosmosis are all caused by pathogenic protozoans.