Lecture 18 Flashcards
Algea
They are all photosynthetic. Have green, brown, and red photosynthetic pigments. Motile ones have flagella. They produce by binary fission, meiosis and gamete production.
Dinoflagellate/ Red Tide
The water turns red. It is a type of environmental toxin. Neurotoxins are released by exocytosis. The type of environmental toxin in brevetoxin.
Paralytic Shellfish Poisoning
Environmental toxin is saxitoxin. Damages the Na+ channels and causes numbness and paralysis.
Pfiesteria
Type of environmental toxin. Becomes a zoospore in the presence of fish. Releases a very deadly necrotizing toxin. It eats through fish.
Protozoa
Do not do photosynthesis. Lack chlorophyll. Distinguished by how they move.
Flagellate
Type of protozoa. Move by flafella. Types- Giardia, Leishmania(carried by sand flies- damages skin or organs), Trichomonas, Trypanosoma(sleeping sickness disease)
Amoeba
Type of protozoa. More by cytoplasmic streaming. There is a tube in the middle and it squeezes through it to move. Type- Entamoeba histolytic
Ciliate
Type of protozoa. Black microvilli in the intestines. type- Balantidium coli(colonic ulcers and dysentery)
Sporozoan
Type of protozoa. They have an apicomplex. types- malaria, toxoplasma, cryptosporidium.
Apicomplex
Attaches to the host cell membrane. Pulls the membrane around themselves. Helps protozoa attach to, move over and penetrate a host cell
Endocytosis
Proteins come in the sporozoan by endocytosis.
Trophozoite
Motile form of apicomplex
Cyst
“Tests” amoebia of apicomplex
Schizogony
Where a cell divides multiple times. The cell the cell that divides multiple times is called a syncytium and each section of that is cell is called merozoites, Each merozoite has its own nucleus.
Fungi
They are saprophytes(they hydrolytic enzymes”eat dead stuff”) Multiple different types-yeast,mold,mushrooms, and dimorphic fungus.