Transcript Bacteria - My eCoach

Bacteria
They are everywhere!
I. Kingdom Bacteria
A. Prokaryotes – lacking a cell nucleus or
organelles
B. Less than 10-100x smaller than the human
cell
C. Unicellular – made of only one cell
D. One chromosome and one plasmid
1. Chromosome – controls the formation of the
bacteria
2. Plasmid – controls the day to day functions of the
bacteria
I. Kingdom Bacteria
E. Reproduce by binary fission – splitting
into two
1. Pili – a tube that exchanges plasmids
between bacteria cells
F. Have flagella and cilia
1. Flagella – Whip like tail
2. Cilia – Oar like projections
II. Types of bacteria
A. Coccus – Round
Shape
B. Bacillus – Rod Shape
C. Spirillium – Spiral
Shape
III. Bacterial Anatomy
Chromosomes
Plasmid
IV. Metabolism
A. Photosynthetic – uses sunlight to make
food
B. Chemoautotrophic – converts chemicals
into energy
C. Heterotrophic – eats other things for
food
V. Important Bacteria
Bacteria
Disease
Symptoms
Transmission
Yersinia Pestis
Bubonic Plague
Bite from and
infected flea
Vibrio Cholerae
Cholera
Streptococcus
Mutans
Tooth Cavities
Fever, bleeding
lymph nodes, often
fatal
Severe diarrhea and
vomiting, fatal if not
treated
Destruction of
minerals in teeth
Shigella Dysenteriae
Dysentery
Fever, bloody
diarrhea, vomiting
Contaminated food
and water
Borrelia
Burgdorferi
Lyme Disease
Rash, pain, swelling
in joints
Bite of an infected
tick
Salmonella typhi
Typhoid Fever
Headache, fever,
diarrhea, rash
Contaminated food
or water
Salmonella
Poisoning
Salmonella
Diarrhea and
vomiting
Contaminated food
or water
E.Coli Poisoning
E. Coli
Diarrhea and
vomiting
Contaminated food
or water
Contaminated food
and water
Lack of hygiene
Bubonic Plague
Tooth Cavities
Lyme Disease
Salmonella Poisoning
E. Coli Poisoning
VI. Antibiotics
A. Drugs that kill both the bacteria and
the surrounding cells
B. Drugs can also stop the reproduction of
bacteria
C. Bacteria are becoming resistant to these
drugs