Download BI 101 Chapter 21 Study Guide Objectives: • Give specific examples

BI 101
Chapter 21 Study Guide
Objectives:
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Describe the two domains of prokaryotes.
Describe the unique characteristics of prokaryotes and their metabolic diversity.
Discuss how prokaryotes reproduce.
Give examples of positive and negative impacts of bacteria on humans.
List characteristics of viruses in general.
Describe the structure and reproductive cycles of viruses.
• Give specific examples of pathogens that cause human illness and how they do so.
Key Terms:
pathogen
prokaryotic
coccus
bacillus
spirillum
cell wall
bacterial flagella
pili
photoautotrophs
chemoautotrophs
photoheterotrophs
chemoheterotrophs
bacterial chromosome
prokaryotic fission
strain
cyanobacteria
spirochaetes
Archaeans
Chapter Outline:
21.1
Viruses
A. Viral components
1.
2.
3.
4.
B. Alive?
C. Examples of Viral diseases:
1.
2.
3.
4.
21.2
Viral Replication
A. Lysogenic Pathway:
B. Lytic Pathway:
C. Reverse Transcription:
methanogens
extreme halophiles
extreme thermophile
virus
protein coat
nucleic acid core
envelope
lytic pathway
lysis
lysogenic pathway
infection
disease
epidemic
pandemic
pathogen
tic resistance
21.4
Prokaryotes
A. Two Domains:
1.
2.
B. Metabolic Diversity
1.
Photoautotrophs are defined as:
a.
2.
Chemoautotrophs are defined as:
a.
3.
Example:
Example:
Chemoheterotrophs are defined as:
a.
Example:
C. Ecological Importance:
1.
2.
3.
4.
5.
21.5
Prokaryote Structure and Function
A. Characteristics
1.
2.
3.
4.
5.
6.
7.
8.
9.
B. Process of Bacterial Replication:
1.
2.
3.
4.
5.
6.
C. Shapes:
1.
2.
3.
21.7
The Archaeans
A. Methanogens:
B. Halophiles:
C. Thermophiles:
21.8
Bacterial Evolution and the Threat of Drug Resistance
A. Bacterial evolution occurs rapidly because:
B. Discuss the process of drug resistance:
C. Ways to combat drug resistant bacteria:
1.
2.
3.