SECTION 6-2: KINGDOM 1- BACTERIA

PART 1: BACTERIA FEATURES

Unicellular organisms

Prokaryotes

The earths oldest fossils (3.5 billion year old bacteria)

Made of….

a) Cell Membrane AND/OR Cell Wall

b) DNA & Ribosomes

c) Flagella

PART 2: BACTERIA REPRODUCTION

A) Binary Fission= asexual/cloning

b) Conjugation= sexual 
Pili= tubes that exchange DNA

PART 3: THE 2 MAIN TYPES OF BACTERIA

1)Archaebacteria

a) Translates into “ancient bacteria”

b) Not affected by antibiotic

c) Can survive in extremely harsh environments such as sewage or

acidic hot springs

2) Eubacteria

a) More common bacteria

b) Cyanobacteria (Their ancestors created free oxygen=1 st

photosynthesis)

c) Disease bacteria (Examples: strep throat, pneumonia, staph)

d) Enteric bacteria aka “pro-biotics” (aid digestion in intestines)

PART 4: DISEASE TEASTING AND CELL WALLS

Different types of cell walls indicate different diseases so doctors will

use different antibiotics

Antibiotic= medicine that kills organisms(not viruses!)

PART 5: BACTERIA & ECOLOGY

1) Nutrient Cycles

a)Decomposers(N, C)

b)Producers

Photosynthesis(C, O)

Chemosynthesis(C,O)

c) Nitrogen Fixation

d)Environmental Clean Up

2) Mutualism & Parasitism

3) Medicines and other products