18.5 Beneficial Roles of Prokaryotes

KEY CONCEPTProkaryotes perform important functions for organisms and ecosystems.

18.5 Beneficial Roles of Prokaryotes

Define bioremediation Give an example of bioremediation and describe how it works.

Which two gasses do bacteria help recycle in the ecosystem?

Describe two ways bacteria provide nutrients to humans.

Power Notes

-Make Vitamins-Break down food-Food Production (i.e. yogurt and pickles)

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

Define bioremediation Give an example of bioremediation and describe how it works.

Which compounds do bacteria help recycle in the ecosystem?

Describe two ways bacteria provide nutrients to humans.

Power Notes

-Make Vitamins-Break down food-Food Production (i.e. yogurt and pickles)

-Oxygen-Nitrogen-Carbon-Sulfur

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

Define bioremediation Give an example of bioremediation and describe how it works.

Which two gasses do bacteria help recycle in the ecosystem?

Describe two ways bacteria provide nutrients to humans.

Power Notes

-Make Vitamins-Break down food-Food Production (i.e. yogurt and pickles)

-Oxygen-Nitrogen-Carbon-Sulfur

Process that uses microbes and other living things to break down pollutants

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