18.5 Beneficial Roles of Prokaryotes
KEY CONCEPT
Prokaryotes perform important functions for
organisms and ecosystems.
18.5 Beneficial Roles of Prokaryotes
Power Notes
Describe two ways bacteria
provide nutrients to humans.
Which two gasses do bacteria
help recycle in the ecosystem?
-Make Vitamins
-Break down food
-Food Production
(i.e. yogurt and pickles)
Define bioremediation
Give an example of
bioremediation and describe
how it works.
18.5 Beneficial Roles of Prokaryotes
Prokaryotes provide nutrients to humans and other
animals.
• Prokaryotes live in digestive systems of animals.
– make vitamins
– break down food
18.5 Beneficial Roles of Prokaryotes
• Bacteria help ferment many foods.
– yogurt, cheese
– pickles, sauerkraut
– soy sauce, vinegar
18.5 Beneficial Roles of Prokaryotes
Power Notes
Describe two ways bacteria
provide nutrients to humans.
-Make Vitamins
-Break down food
-Food Production
(i.e. yogurt and pickles)
Define bioremediation
Which compounds do bacteria
help recycle in the ecosystem?
-Oxygen
-Nitrogen
-Carbon
-Sulfur
Give an example of
bioremediation and describe
how it works.
18.5 Beneficial Roles of Prokaryotes
Prokaryotes play important roles in ecosystems.
• Prokaryotes have many functions in ecosystems.
– photosynthesize
– recycle carbon, nitrogen,
hydrogen, sulfur
– fix nitrogen
18.5 Beneficial Roles of Prokaryotes
Power Notes
Describe two ways bacteria
provide nutrients to humans.
-Make Vitamins
-Break down food
-Food Production
(i.e. yogurt and pickles)
Define bioremediation
Process that uses
microbes and other
living things to break
down pollutants
Which two gasses do bacteria
help recycle in the ecosystem?
-Oxygen
-Nitrogen
-Carbon
-Sulfur
Give an example of
bioremediation and describe
how it works.
Bacteria can digest oil
from an oil spill and
break it down into
harmless chemicals.
18.5 Beneficial Roles of Prokaryotes
Gulf oil spill
18.5 Beneficial Roles of Prokaryotes