Chapter 19 - Prokaryotes Chapter 19 Prokaryotic Domains Two...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
Prokaryotes Chapter 19
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Prokaryotic Domains Two Domains consists entirely of prokaryotes - Two different prokaryote domains: 1. Bacteria 2. Archaea
Background image of page 2
Archaea Diverged from the bacteria very early in the history of life Only distantly related to bacteria RNA nucleotide sequences
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Differences:
Background image of page 4
Prokaryotes Difficult to Classify Tiny, structurally simple Historically classified on basis of:
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Bacteria Cell wall composed of peptidoglycan
Background image of page 6
New Classifications Comparisons of DNA & RNA nucleotide sequences Now classify bacteria into about 13 to 15 kingdoms Archaea
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Species Boundaries Species boundaries difficult because reproduction is asexual Separate species if the number of DNA sequences
Background image of page 8
Cell wall gives prokaryotes protection & their characteristic shapes Most common shapes:
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Locomotion Flagella May appear singly at one end of a cell In pairs As a tuft Scattered over the entire surface Wheel-like structure
Background image of page 10
Image of page 11
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 27

Chapter 19 - Prokaryotes Chapter 19 Prokaryotic Domains Two...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online