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Bacteria

Bacteria. Bacteria: Diversity & Structure. Prokaryotes v Eukaryotes. Prokaryote . Eukaryote. Archaebacteria. Bacterial Structures. Chromosomes Nucleoid —large circular strand of DNA Main Chromosome Plasmid —smaller circular strand of DNA Capsule—additional layer surrounding cell

elijah-mccullough
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Bacteria

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  1. Bacteria

  2. Bacteria: Diversity & Structure

  3. Prokaryotes v Eukaryotes Prokaryote Eukaryote

  4. Archaebacteria

  5. Bacterial Structures • Chromosomes • Nucleoid—large circular strand of DNA • Main Chromosome • Plasmid—smaller circular strand of DNA • Capsule—additional layer surrounding cell • Secreted by cell • Protects/attaches to surfaces • Pili—small hair-like structures made of protein

  6. Identifying Bacteria ShapeCell Wall Cocci—spheres Gram Positive Bacilli—rods Gram Negative Spirilli—Spirals

  7. Bacteria: Reproduction & Metabolism

  8. Reproduction • Binary Fission—division of a cell into two genetically identical cells (approx. 20 min.) • DNA replicates • Cell grows • Cell divides • Conjugation—bacteria exchange pieces of DNA • Plasmids

  9. Metabolism

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