Week1_Introduction_to_Microbiology
Definition
Microbies are organism that are too small to be seen using the naked eye.
Application
Medical
Microscope
Microbial culture
Food
Bread
Cheese
Yogurt
Industrial
Chemical
Fuel
Immunology
Cancer Immunology
Genetic
DNA sequence
GFP (Green Fluorescence Protein)
Enviromental
Bioremedies
Virus
Bacteria
Agriculture
Fertilizer (Effective Microbes)
Bacteria + Eukaryote vs Archaea + Eukaryote
Bacteria + Eukaryote
Ester-linked Membrane Lipid
Archaea + Eukaryote
Component RNA & Protein Synthesis System
Importance of Microbiology
As Source of food
Reduce waste
Produce:
Antibiotics
Vitamins
Amino acids
Genetic engineering:
Recombine RNA Technology
Type of Microbes
Prokaryotes
Bacteria
Unicellular
Singular: Bacteria
Characteristics
Naked Genetics
Enclosed genetic material
Various shape
Various forms
Ex: Eschericha coli 0157:H7
Virulent stain
Archaea
Characteristics
Lack in cell wall- peptidoglycan
Extremophiles (Withstand very extreme temperature)
Chemotrophic (Divert energy from organic and inorganic compound)
Methanogens (reduce CO2 to methane)
Aka Methane-produced bacteria
Halophiles (Can tolerate saltiness)
Thermoacidophiles (Both thermophilic and acidophilic)
Ex: Deinococcus radiodurans aka Conan the Bacterium
Polyexteremophile
Eukaryotes
Protozoa
Singular: Protozoan
Unicellular
Characteristic
Nutrients obtained: absorption/ingestion from environment
Movement
Pseudopod
Flagella
Cilia
Found as
Free entities
Parasites
Reproduction
Sexually
Asexually
Fungi
Unicellular(yeast)/Multicellular (Mushroom)
Singular: Fungus
Characteristic
Produce mold
Have typical mass of mycelia from hyphae
Reproduce
Sexually
Asexually
Nutrients obtained: By absorption
Algae
Singular: Alga
Unicellular/Multicellular
Characteristic
Cell wall: Cellulose
Reproduce
Sexually
Asexually
Photosynthesis
Important in Food chain
Virus
Acellular
Very small. Must used electron microscope to see
Characteristic
Simple organism: Have RNA/DNA
Inert biochemical complex (Alive in host/ non-living in environment)
Prokaryotes (Unicellular) vs Eukaryotes (Multicellular)
Nucleus, Mitochondria, Golgi Apparatus, Endoplasmic reticulum
Yes
Eukaryote
No
Prokaryote
Ribosome size
Eukaryotes
80 subunits
Prokaryotes
70 subunits