LQB292 Lecture Notes - Lecture 4: Saccharomyces, Schistosoma, Digestion
Document Summary
Food - bread, wine/ beer, soy sauce, mushrooms: bad fungi, mycoses - disease caused by fungi. Infection of skin, hair, nails and eyes: bothersome, usually not serious, athletes foot, ringworm, tinea, onychomycosis, person to person transmission of spores or desquamated skin (contain. Life threating: can cause sepsis, e. g. pneumocystic pneumonia (pcp, caused by pneumocystic jirovecii (formally p. carinii, human becomes infected by inhaling spores, especially serious in individuals with an impaired immune system or those. Free living in water and soil: humans have protozoa on/in them at most times (usually harmless) [exception to particular parasites or immunosuppression] Structure: enormous variation in structure, most <50um, classification - based on locomotive structure, amoebae (pseudopodia, ciliates (cilia, apicomplexa (non-motile) Flagellates (flagella: complex life cycle, pass through several stages that differ in structure and activity, trophozoite - active, feeding, multiplying stage (associated with pathogenesis). Reproduce by budding/ binary fission: cysts - infective, non-motile stage.
