Introduction To Microbiology

Question 1

Microbiology

Answer 1

Study of microorganisms: eukaryotes, prokaryotes, bacteria, archae, viruses

Question 2

Microorganisms

Answer 2

Earth’s premier chemists! Smallest forms, but bulk of biomass.
Affect humans in detrimental (deseases) and beneficial (protein / antibiotics)

Question 3

How did cells originate?

Answer 3

Common ancestral cell: LUCA. Arose from nonliving materials: C, O, and H.
-> major lineages (bacteria, archaea, eukarya)

Question 4

Life on earth through the ages

Answer 4

Earth 4.6 bya, between 3.8 & 3.7 first cell.

Cyanobacteria began with oxygenation of earth!

Question 5

Phatogenes

Answer 5

Microorganisms that cause infectious diseases

Question 6

Importance of microorganisms

Answer 6

Benefits: argiculture due to cycling of nutrients.

Dairy products depend on activity of microorg.

Biotech.: use of genetically engineered microorg. to synthesize human proteins

Production of biodiesel, of biofuel (methane), convertion of wastematerial

Question 7

Microbial bioremediation

Answer 7

Microorganisms clean up human pollution