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bacteria 7.2

bacteria

QuestionAnswer
How do cells of bacteria differ from those of eukaryotes? bacteria are prokaryotes. The genetic matrial in their cells is not contained in a nucleus.
What do bacteria need to survive? source of food and a way of breaking down the food to release its energy.
Under what conditions do bacteria thrive and reproduce? plenty of food, right temperature, and other suitable conditions.
What positive roles do bacteria play in people's lives? oxygen and food production, environmental recycling and cleanup, health maintenance and medicine production.
bacteria single celled organisms that lack a nucleus.
flagellum long, whiplike structure that helps a cell to move.
binary fission asexual reproduction in which one cell divides to form two identical cells.
asexual reproduction reproductive process that involves one parent and produces offspring that are identical to the parent.
sexual reproduction a reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parents.
conjugation The process in which a unicellular organism transfers some of its genetic material to another unicellular organism.
endospore A small rounded, thick walled, resting cell that forms inside a bacterial cell.
pasteurization heating food to a temperature that is high enough to kill most harmful bacteria without changing the taste of the food.
decomposer an organism that breaks down chemicals from wastes and dead organisms, and returns important to the soil and water.
Created by: Lisa Leonard
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