History Flashcards
What is Microbiology?
Study of organisms and agents too small to be seen by the naked eye
Longest known bacterium
Epulopiscium, with paramecium
“Sulfur Pearl of Namibia”
Thiomargarita namibiensis
New definition of microbiology
Study of organcisms that can exist as a single cell, contain nucleic acid genome, and capable of replicating that genome
Importance of Microorganism
First living organism Live everywhere life is possible More in number than others Global ecosystem depends on their activities Influence human society
Basic Microbiology
Bacteria Archaea Algae Fungi Protozoa Viruses
Bacteria. Uni or Multi?
Unicellular
Bacteria. Eukaryote or prokaryote?
Prokaryote
Found in cell walls of bacteria
Peptidoglycan
Division of bacteria
Binary Fission
May be possessed by bacteria
Flagella
Pneumonia-causing bacteria
Haemophilus influenzae
Archae. Eukaryote or prokaryote?
Prokaryote
Lacking in archaea cell wall
Peptidoglycan
Found in extreme environments
Archaea
Adapted to high salt concentrations
Halophiles
Methane producers
Methanogens
Adapted to high temperature
Thermophiles
Adapted to high pressure
Barophiles
Mushroom, yeasts, molds
Fungi
Fungi. Eukaryote or prokaryote?
Eukaryote
Fungi. Uni or Multi?
Could be both
Found in true fungi’s cell walls
Chitin
Found in molds
Mycelia
Long filaments in mycelia
Hyphae
Cottony growth found on bread and fruit
Mold mycelia
How does fungi obtain nutrients?
Absorbing organic material from their environment
Common bread mold
Mucor sp.
Protozoa. Uni or Multi?
Unicellular
Protozoa. Eukaryote or Prokaryote?
Eukaryote
Protoza are moved by
Pseudopods
Flagella
Cilia
Protozoa obtain food by
Absorption
Ingestion
Protozoa reproduce sexually or asexually?
Both sexual and asexual
Example of protozoa
Amoeba
Algae. Uni or Multi?
May be both
Algae. Eukaryote or Prokaryote?
Eukaryote
Algae reproduce sexually or asexually?
Both sexual or asexual