Archaebacteria vs Eubacteria02/23/2012

pages 107-108

Know: What roles does bacteria play in human lives?

Archaebacteria vs Eubacteria

Archaebacteria

Characteristics: Unicellular, prokaryotes,

autotrophs and heterotrophs

Most can’t moveResemble early life forms

Eubacteria• Characteristics:• Unicellular,

prokaryotes, autotrophs and heterotrophs

• Most are beneficial• Some harmful--Strept

throat, food poison

Archaebacteria vs Eubacteria

Archaebacteria• Habitat:• Extreme environments:

Acidic,no oxygen, Hot Springs

Eubacteria• Habitat:• Everywhere EXCEPT

extreme areas– skin bacteria

Archaebacteria vs Eubacteria

Archaebacteria

• Food:• Some capture sunlight

(photosynthesis), others decaying material Ex. Meat or milk

Eubacteria• Food:• Same as archaebacteria,

some use hydrogen or methane (chemosynthesis) Ex. Coal mine methane gas

Archaebacteria vs EubacteriaArchaebacteria

• Impact:• Responsible for earth’s

natural gas

Eubacteria

• Impact:• Nature’s recyclers– returns

basic chemicals to the environment

Archaebacteria vs EubacteriaArchaebacteria

• Cool Facts:1. Some live inside humans2. Used to clean up oil spills3. Existed on earth for billions

of years

Eubacteria

• Cool Facts:1. Turns cucumbers into

pickles2. Some very good to eat--

cheese and yogurt3. Decomposers--- turn dead

organisms into soil

Archaebacteria vs Eubacteria

• Common Features:• Both come in various shapes and sizes:

1. Rods2. Spirals3. Spherical

Archaebacteria vs Eubacteria

• Common Features:• Some have flagellum (whip) for movement

Archaebacteria vs Eubacteria

• Common Features:Reproduction: 1. Asexual: divides into 2 identical cells2. Sexual: 2 parents combine DNA to form new

cell3. Conjugation: Transfer DNA through thread-like structure.

Summary and Evidence

• Write your summary• Glue in the chart (from your teacher) for

evidence