BIOA02H3 Lecture Notes - Ecosystem Ecology, Evaporation, Transpiration
43
BIOA02H3 Full Course Notes
Verified Note
43 documents
Document Summary
Fungi: (heterotrophic) other: earth"s premiers decomposers, obtain energy by breaking down organic molecules synthesized by other organisms, saprotroph: decomposers, symbiont: from living organisms (pathogens or mutalists) close relationships with each. Take carbon sources directly from host, host is negatively impacted by the interaction. May also act as decomposer after host is dead. Mutalists: take carbon sources directly from host but engages in a mutually beneficial interaction by providing a service in return, usually providing water or nutrients from the soil. Basic facts: some unicellular, most are multicellular, budding yeast: wine, beer, bread (produce asexually and sexually, mostly composed of mycelium: a mass of hyphae (mostly underground, hyphae: thread like filaments of a fungus (not roots) Apical growth: hyphae grow outward by growth at tips. Absorptive nutrition: fungi secrete enzymes into their environment, breaking down large organic molecules into smaller one that can be absorbed into their cells (hyphae transport water and nutrients through cellular streaming)
