1 / 7

Bacteria

Bacteria. The Bacterial Cell. Bacteria are prokaryotes. The genetic material in the cells is not contained in a nucleus. Bacteria Structure: Cell wall Cell membrane Cytoplasm Ribosomes Flagella. Bacteria have 3 basic shapes: Rod, Spherical, Spiral.

angelique-elian
Télécharger la présentation

Bacteria

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Bacteria

  2. The Bacterial Cell Bacteria are prokaryotes. The genetic material in the cells is not contained in a nucleus. Bacteria Structure: Cell wall Cell membrane Cytoplasm Ribosomes Flagella

  3. Bacteria have 3 basic shapes: Rod, Spherical, Spiral

  4. Under favorable conditions, bacterial cells divides by fission once every 20 minutes. Binary fission is asexual reproduction.

  5. Conjugation is sometimes considered sexual reproduction in bacterial cells because two cells combine their genetic material.

  6. Endospore: Small, rounded, thick-walled resting cell that forms inside a bacterial cell. It contains the genetic material and some cytoplasm. Formed when environmental conditions are unfavorable for growth of bacteria so endospores are formed. They can resist freezing, heating, and drying as well as survive for many years.

  7. Food • Some bacteria make their own food and are called autotrophs. Ex: Blue-Green Bacteria and Chemosynthetic bacteria • Others are heterotrophs and obtain food from decaying organisms, milk, or meat.

More Related