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