Bio for non majors 18

Bio for non majors 18 - Bacteria have a circular chromosome...

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Bacteria have a circular chromosome Bacterial DNA replication Bacterial cells reproduce through binary fission Bacterial Cell Shapes Bacterial Movement Bacterial flagella aid in cell movement Not all bacteria move using flagella Some drift passively in liquid Some adhere to surfaces Some form biofilms Example: Dental plaques Bacterial spores Some bacteria have the ability to survive harsh conditions by forming spores Diverse metabolism = Diverse habitats Bacterial diversity! Bacteria have different oxygen requirements Bacteria obtain energy from many different sources How did so much diversity evolve in the absence of sexual reproduction? Bacteria exchange genetic material through conjugation Bacteria on and in the human body Benefits of bacteria In the environment, bacteria that obtain energy from inorganic molecules release forms of these molecules that are used by plants Nitrogen-fixing bacteria In the human body, bacteria aid in digestion
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This note was uploaded on 11/08/2011 for the course BIO 0815 taught by Professor Crucielli during the Spring '11 term at Pittsburgh.

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Bio for non majors 18 - Bacteria have a circular chromosome...

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