BIOL 1030 Lecture Notes - Lecture 20: Mycelium, Paramecium, Heterotroph

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1030
• Professor: Carla Zelmer

Document Summary

Exists in microscopies of hyphae know as mycelium. Penetrate substances they live in and take out nutrients from them. Mycelium: an aggregation of hyphae (myco) meaning fungus. Mutualism: provide mineral nutrients from soil to the host, benefits both organism. Paramecium) take food particles into cell broken down by lysosomes intracellular digestion, whole organs. Fungi can"t access nutrients these ways: no mouth, rigid cell walls. Extracellular (takes place outside cells) hyphae produce hydraulic enzymes produced by rough er (ribosomes, proteins and enzyme synthesis) transported, modified and secreted via the golgi apparatus. Digestion of substrate into simpler, soluble compounds (polymers of glucose too large) Aseptate fungus in the zygomycota: rhizopus & phycomyces, amylase: enzyme that hydrolyses starch. Lignin: hard polymer of glucose, brown in color. Cellulose: also polymer of glucose, white in colour. Cellulose secreted by a fungus (brown rotter) causes the breakdown of the cellulose, leaving behind the brown lignin. Sulfur shelf (chicken of the woods); decays wood (pretty)