University:
Indiana University South Bend
Course:
BIOL-L 101 | Introduction to Biological Sciences
Academic year:

2021
Views:

387

Pages:

1
Author:

Rose G

Biological Classification - Part II Monera, Protista, Fungi, Virus, Viroid & Lichen Monera (Monos-single) Includes prokaryotes Features of Kingdom Monera Structure of Bacterial Cell Fi Unicellular organisms (except 1 mycelial group) Genetic material: Naked coiled DNA Nucleus & cytoplasmic organelles absent Cytoplasmic organelles: Both types of ribosome, simple chromatophores Gas vacuole may be present instead of sap vacuole Mode of nutrition: Absorptive, photosynthetic & chemosynthetic Cytoplam Coiled DNA Motility: Non-motile, simple flagellar or gliding Shapes Cocci Bacilli Vibrio Spirillum Cell wall Masme toppr lage Bacterial Nutrition Types Autotrophic Heterotrophic Filament Budded Stalked Protista Single-celled eukaryotes Features of Kingdom Protista • Unicellular organisms - Primarily aquatic Link between plants, animals & fungi Well defined nucleus & membrane-bound organelles • Reproduction: Asexual & sexual Mode of nutrition: Photosynthetic, holotrophic & mixotrophic Prokaryotic Grouping of Protists Dinoflagellate Consumer Slime moulds Myxomycetes Protozoan Slime moulds • Мукотуcetes • Diatoms Euglenoids Major Protist Groups Chrysophytes Dinoflagellates Protozoans Amoeboid Flagellates Stime moulds Euglenoids Sporozoans Ciliates Fungi Thallus is the plant body of true fungi Features of Kingdom Fungi -Thallus organisation: Mycelial, non-mycelial -Cell organisation: Made of chitin & cellulose Cell-wall: Cellulase-glycogen, cellulose-chitin or polygalactosamine-galactan Nutrition: Parasitic, saprophytic, symbiotic - Reproduction: Vegetative: fragmentation, budding & fission Asexual: Sporangiospores, zoospores & conidia Sexual: in all fungi (except Deuteromycotina) Classification: Phycomycetes (Rhizopus/mucor. Albugo), Ascomycetes (Yeast), Basidiomycetes, Deuteromycetes Virus: Not truly living species -Genetic material: DNA or RNA Nucleoprotein & genetic material Capsid protects nucleic acid Gymnomycuta Domycota Eumycota excluded from fungi and piacand Phyconvycetes Zygomycetes Conjugation fung Algal fungi Phytophthore Alluge Pythiam Deuteromycota Viroids: Lack protein coat Smaller than virus RNA has low molecular weight Trichophyton Ascomycota Aspergillus Neurespare Mycophycophyta Chial organ Linchens NG Usne Parelia Basidiomycota Cub fung Callag Agaricus Lichens: Symbiotic associations Symbiosis between algae & fungi Algal component: Phycobiont Fungal component: Mycobiont