Download Notes-Archaebacteria and Eubacteria

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# ___ Notes – Prokaryotes (Ch 20.2)
What shocking discovery was made after the invention of the microscope?
Classifying Prokaryotes:
When there were only five kingdoms, all bacteria were classified in the Kingdom
.
Now, they are divided into Domain
)
and Domain
(Kingdom
(Kingdom
).
Complete the chart to compare and contrast the two groups of prokaryotes.
Bacteria
Archaea
Cell wall present?
Does not have peptidoglycan
(sugar-amino acid polymer)
Cell wall composition
Nucleus present?
Membrane lipids?
Yes
Yes, but similar to lipids of
eukaryotes
Habitat
Other information that you think
is useful.
Structure and Function
Prokaryotic Shapes. Circle the bacilli. Draw a square around the cocci. Draw a triangle around the spirilla.
www.merckmanuals.com
What is structure A?
What is structure B?
Size and Scale. Look at the diagram below to understand the scale of bacteria (and viruses).
http://learn.genetics.utah.edu/content/begin/cells/scale/
Nutrition and Metabolism: Note the differences between the two charts on pp. 582 and 583.
Which types of prokaryotes would you expect to find living inside your intestines? Explain your answer.
If you got a deep cut on your finger, which types of prokaryotes would you expect to live (and infect) the
wound? Explain your answer.
Growth, Reproduction, and Recombination
Sexual or asexual?
Method of
(Any new genetic
Reproduction
material?)
Sketch/Description
Other Notes
How is this similar to mitosis?
B
How is it different?
F
How is this related to lateral
gene transfer (p. 485)?
C
What are the benefits of an endospore?
The Importance of Prokaryotes
1. What would happen to plants and animals if decomposers did not recycle nutrients?
2. All organisms need nitrogen to make
3. What is nitrogen fixation? What would happen if there were no prokaryotes to perform nitrogen
fixation?
4. What is the name of the symbiotic relationship between plants and nitrogen-fixing prokaryotes?
.
(Optional) Concept Map: Include explanations in your concept maps.
aerobe
circular chromosome
anaerobe
decomposers
Archaebacteria
Eubacteria
bacilli
extreme environments
cell membrane
flagellum
chemoautotrophs
heterotrophs
membrane-bound organelles
peptidoglycan
photoautotrophs
plasmid
prokaryote