1 / 9

Kingdoms

Kingdoms. Viruses and Bacteria. 6 Kingdoms. The 6 kingdoms are divided among 3 domains based on general cell structure Bacteria – E ubacteria Archaea – Archaebacteria Eukarya – Plants, Animals, Fungi, Protists. Where do viruses fit in the ‘Tree of Life’?.

cicero
Download Presentation

Kingdoms

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. Kingdoms Viruses and Bacteria

  2. 6 Kingdoms • The 6 kingdoms are divided among 3 domains based on general cell structure • Bacteria – Eubacteria • Archaea – Archaebacteria • Eukarya – Plants, Animals, Fungi, Protists

  3. Where do viruses fit in the ‘Tree of Life’? • Although viruses have some characteristics of living things, • they are not made of cells • cannot reproduce on their own • They are not considered ‘living’

  4. Viral Replication • If virus is in lysogenic cycle, host may not be aware they are infected. • Viruses are usually only transmitted during lytic cycle

  5. Archaebacteria • “Archaea” = Ancient • Believed to be the fist species on Earth • Most are anaerobic – live without oxygen • Well-suited to extreme environments • Acidophiles – live at pH <3 • Thermophiles – live at very high temp (>100°C) • Halophiles – live in areas with high salt

  6. Archaea and Eubacteria • All bacteria share a number of common characteristics: • All prokaryotic • All single-celled • All have a single chromosome • All reproduce asexually through binary fission • Primary difference between kingdoms is related to presence or absence of peptidoglycan in cell wall • Present = Eubacteria • Absence = Archaea

  7. Classifying Eubacteria • Eubacteria are classified according to their arrangement and shape:

  8. What would you call these?

  9. Independent Work • Read Pages 343-346 • Benefits of Bacteria – how are they helpful in the human body? How are they used in pollution control? • Harmful effects – How do bacteria cause symptoms of disease? How are bacterial infections passed from one person to another? • Antibiotic resistance – how do bacteria acquire resistance to antibiotics? (note: ‘conjugation’ = sharing of genetic info between bacteria ↓)

More Related