Bacteria

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Bacteria

Classification

Shape:

Round (cocci)

Rod (bascilli)

Spiral (spirilli)

Diplo (pairs)

Staphylo (clusters)

Strepto (chains)

Reproduction:

Asexual- Binary fission

"Sexual"- Conjugation

Spores- Grow endospores and hibernate until times get better

Cell Wall Structure:

Made of peptidolycon

Gram - bacteria stain pink

Gram + bacteria stain purple

Nutrition:

Light as main source of energy = Photoautotrophs and photoheterotrophs

Chemicals as main source of energy = Chemoautotrophs and chemoheterotrophs

O2 Requirements:

Aerobic- Need oxygen to survive

Anerobic- Don't need oxygen to survive

Obligate anerobic- Die in areas with oxygen

Basic Structure

Impact on Humans:

Helpful- gut bacteria, make food, cyanobacteria

Harmful- pathogenic (antibiotics), toxins