Microbiology Review Sheet For Exercises
Review Sheet
Exercise I: Survey of Higher Microorganisms: Protozoa, Fungi, and Helminths
Protozoa (group of Kingdom Protista)
1. Amoeba a. nucleus- dark center of the cell b. food vacuole- They feed by taking nutrients into the cell by diffusion and packaging it into (clear circles spread throughout the cell) c. pseudopod- “false foot”; the motility results from the streaming of the protoplasm that forms the process 2. Entamoeba causes amoebiasis or amoebic dysentery, a disease common in areas with poor sanitation. Cysts are ingested in contaminated food and water and develop into trophozoites, which invade the mucosa of the large intestines producingulcers accompanied by dysentery. Trophozoites can be found in erythrocytes and feces of an infected person. a. nucleus- big funny shaped and dark
3. Balantidium exists in two forms: a vegetative trophozoite and a cyst. They are characterized by having two nuclei: a large macronucleus for growth and metabolism and a small micronucleus for cell division. (round circles with hair called cilia on the outside border of the cell) a. nucleus- dark and cashew shaped b. cilia- hairlike structures on the outside of the cell
4. Trypanosoma cause African Sleeping Sickness and American trypanosomiasis. They live in the bloodstream and progressive symptoms include headaches, fever, and anemia. Pronounced fatigue is experienced and most of the time is spent sleeping until death. (flagella is on the beginning and end of the cell, its nucleus and is surrounded by red blood cells)
5. Plasmodium that causes malaria. They are sporozoan parasites with a complex life cycle, part of which is in various vertebrate tissues, while the other part involves parasites. The sporozoites of the organisms are transferred to a human by the bite of a female Anopheles mosquito. The sporozoites enter the bloodstream and migrate to the liver, where they enter the liver cells and transform into merozoites.
Exercise I: Survey of Higher Microorganisms: Protozoa, Fungi, and Helminths
Protozoa (group of Kingdom Protista)
1. Amoeba a. nucleus- dark center of the cell b. food vacuole- They feed by taking nutrients into the cell by diffusion and packaging it into (clear circles spread throughout the cell) c. pseudopod- “false foot”; the motility results from the streaming of the protoplasm that forms the process 2. Entamoeba causes amoebiasis or amoebic dysentery, a disease common in areas with poor sanitation. Cysts are ingested in contaminated food and water and develop into trophozoites, which invade the mucosa of the large intestines producingulcers accompanied by dysentery. Trophozoites can be found in erythrocytes and feces of an infected person. a. nucleus- big funny shaped and dark
3. Balantidium exists in two forms: a vegetative trophozoite and a cyst. They are characterized by having two nuclei: a large macronucleus for growth and metabolism and a small micronucleus for cell division. (round circles with hair called cilia on the outside border of the cell) a. nucleus- dark and cashew shaped b. cilia- hairlike structures on the outside of the cell
4. Trypanosoma cause African Sleeping Sickness and American trypanosomiasis. They live in the bloodstream and progressive symptoms include headaches, fever, and anemia. Pronounced fatigue is experienced and most of the time is spent sleeping until death. (flagella is on the beginning and end of the cell, its nucleus and is surrounded by red blood cells)
5. Plasmodium that causes malaria. They are sporozoan parasites with a complex life cycle, part of which is in various vertebrate tissues, while the other part involves parasites. The sporozoites of the organisms are transferred to a human by the bite of a female Anopheles mosquito. The sporozoites enter the bloodstream and migrate to the liver, where they enter the liver cells and transform into merozoites.