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Wonderful World of Bacteria. The Cell. The cell is a unit of organization Cells are classified as prokaryotes or eukaryotes Living things are classified in six kingdoms based on structure. . P rokaryotes. Within prokaryotes, there are two groups: Bacteria and Archaea . . Meanings. - PowerPoint PPT Presentation
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Wonderful World of Bacteria
The Cell
The cell is a unit of organization Cells are classified as prokaryotes or
eukaryotes Living things are classified in six kingdoms
based on structure.
Prokaryotes
Within prokaryotes, there are two groups: Bacteria and Archaea.
Meanings
Prokaryotes– Pro = Before– Karyote = Cell Nucleus– Do Not Have a Nucleus
Eukaryotes– Eu = True– Karyote = Cell Nucleus– Has a Nucleus
Which is older Prokaryotes or Eukaryotes?
Prokaryotes
Examples
Example of Prokaryote– Bacteria
Example of Eukaryote– Animals, Plants, Fungi
Kingdom Bacteria
Classified by how they get food. Consumers obtain nutrients from other
organisms.
Bacteria
Most consumers are decomposers which feed on dead organic matter.
Parasitic is another consumer which means they invade the body of another organism to obtain food.
Bacteria who make their own food are producers.– Some are photosynthetic and chlorophyll is
needed for photosynthesis.
BACTERIA are helpful because…
They are in our foods…
Bacteria Movement
What is a that tail-like structure?
Its called a flagellum – A Flagellum is a whip
like structure that propels bacteria forward.
– Flagellum means whip in Latin
More bacteria in our food…
MedicinesAntibiotic Bacteria Infection
Penicillin Penicillium chrysogenum
Throat infections, laryngitis, bronchitis, pneumonia, stomach problems,
Bacitracin Bacillus subtilis Prevent skin infections
Neomycin Streptomyces fradiae Infection of outer ear
Cipro Infection of lungs, skin, bones, joints, UTIs, diarrhea
Pseudomona and Penicillium
and the help during oil spill clean-up
Good For World
Nitrogen-fixing bacteria consume nitrogen in the air and change it into a form that plants can use.
Decomposing bacteria break down dead organic matter and make nutrients available again to living things.
Bioremediation is the use of bacteria and other microorganisms to change pollutants into harmless chemicals.
Good For People
Some bacteria cause diseases while others make chemicals to treat diseases. – Antibiotics are medicines used to kill bacteria and
other microorganisms. Bacteria can also be bred for food!
– Cheese– Yogurt– Buttermilk– Sour cream
ARCHAEBACTERA
Bacteria that live in extreme conditions
The four main types of Archaebacteria: cold lovers, salt lovers, heat lovers, methane makers
Deep Sea VentsCold Lovers
Hot SpringsHeat Lovers
Salty EnvironmentsSalt Lovers
Sewage PlantsMethane Makers
Bacteria can also be harmful
Bad Bacteria
Certain bacteria act as pathogens and cause tetanus, typhoid fever, pneumonia, syphilis, cholera, food-borne illness and tuberculosis.
Streptococcus bacteria may cause small infections like strep throat and some serious diseases like pneumonia. Certain streptococci may be fatal.
Still More
Harmful bacteria in food cause botulism, which can cause paralysis or even death if even one-millionth of the bacterium is ingested.
Bubonic plague, is a rod-shaped type of bacterium which is well-known for its harmful nature. Bacteria-carrying fleas found on animals such as rats and mice transmit the bacteria that are believed to have caused the deaths of millions of people in human history
Shape of Bacteria
Bacilli or Rod Cocci Spirilla
Most common and Least Common
The most common form of bacteria is Rod or Bacilli
The least common shape of bacteria is Spirilla