1 / 11

Functional Anatomy of Prokaryotic and Eukaryotic Cells

4. Functional Anatomy of Prokaryotic and Eukaryotic Cells. Prokaryotic Cells. Comparing prokaryotic and eukaryotic cells Prokaryote comes from the Greek words for prenucleus. Eukaryote comes from the Greek words for true nucleus. One circular chromosome, not in a membrane No histones

kirra
Download Presentation

Functional Anatomy of Prokaryotic and Eukaryotic Cells

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. 4 Functional Anatomy of Prokaryotic and Eukaryotic Cells

  2. Prokaryotic Cells • Comparing prokaryotic and eukaryotic cells • Prokaryote comes from the Greek words for prenucleus. • Eukaryote comes from the Greek words for true nucleus.

  3. One circular chromosome, not in a membrane No histones No organelles Peptidoglycan cell walls Binary fission Paired chromosomes, in nuclear membrane Histones Organelles Polysaccharide cell walls Mitotic spindle Prokaryote Eukaryote

  4. Morphology • Coccus (pleural cocci means berries) are spherical shaped. • Bacillus (pleural bacilli, meaning little staffs) are rod shaped. • Coccobacilli are oval shaped rods that look very much like cocci. • Spirilla have a helical shape, like a corkscrew, and fairly rigid bodies. • Spirochetes are more tightly spiraled and are more flexible

  5. Average size: 0.2 -1.0 µm  2 - 8 µm • Basic shapes: Figures 4.1a, 4.2a, 4.2d, 4.4b, 4.4c

  6. Arrangements • Pairs: Diplococci, diplobacilli • Clusters: Staphylococci • Chains: Streptococci, streptobacilli Figures 4.1a, 4.1d, 4.2c

  7. Flagella • Outside cell wall • Made of chains of flagellin • Anchored to the wall and membrane Figure 4.8a

  8. Flagella Arrangement Figure 4.7

  9. Endospores • Resting cells • Resistant to desiccation, heat, chemicals • Bacillus, Clostridium • Sporulation: Endospore formation • Germination: Return to vegetative state

  10. Figure 4.21b

  11. Homework • Review: 1, 2, 3, 5

More Related