State Standard
SBCb: Compare how structures & function vary between the six kingdoms (archaebacteria, eubacteria, protists, fungi, plants, & animals.
SBCd. Compare & contrast viruses with living organisms.
Domains & Kingdoms (17.3)
Grouping Species The broadest category in the classification used
by most biologists is the domain. All organisms fit into one of 3 domains:
Domain ArchaeaDomain BacteriaDomain Eukarya
17.3 Domains and Kingdoms
Organizing Life’s DiversityChapter 17
Grouping Species Cont’d
17.3 Domains and Kingdoms
Organizing Life’s Diversity
Within the 3 domains, modern taxonomy defines six kingdoms.
The six kingdoms are Eubacteria, Archaebacteria, Protists, Fungi, Plantae, & Animalia.
Chapter 17
Prokaryotes
All prokaryotic organisms are either in Domain Bacteria or Domain Archaea.
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Chapter 17
Domain Bacteria Domain Bacteria only contains
1 Kingdom: Eubacteria.
Eubacteria (true bacteria) are prokaryotes whose cell walls contain peptidoglycan. They can be beneficial or cause disease.
Organizing Life’s Diversity
Eubacteria are a diverse group that can survive in many different environments.
17.3 Domains and Kingdoms
Chapter 17
Domain Archaea Domain Arachaea only contains 1
kingdom: Archaebacteria. Archaeabacteria are thought to be
more ancient than eubacteria.
Organizing Life’s Diversity
Archaea are diverse in shape and nutrition requirements.
They are called extremophiles because they can live in extreme environments (ex: salty or extremely hot – deep oceans, hot springs, & swamps.
17.3 Domains and Kingdoms
Chapter 17
• NO PEPTIDOGLYCAN
Domain Eukarya All eukaryotes are classified in Domain
Eukarya.
Organizing Life’s Diversity
Domain Eukarya includes 4 Kingdoms: Protista, Fungi, Plantae, & Animalia.
17.3 Domains and Kingdoms
Chapter 17
Kingdom Protista
Organizing Life’s Diversity
Protists are classified into three different groups—plantlike, animal-like, and funguslike.
Protists are eukaryotic organisms that can beunicellular, colonial, or multicellular.
17.3 Domains and Kingdoms
Chapter 17
Kingdom Protista Cont’d
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Chapter 17
• Lack complex organ systems & live in moist environments
• May or may not have a cell wall.
• May be autrotrophic or heterotrophic
• Diverse set of organisms that don’t fit neatly into any other kingdom.
Kingdom Fungi
Organizing Life’s Diversity
A fungus is a unicellular or multicellulareukaryote that absorbs nutrients from organic materials in its environment.
17.3 Domains and Kingdoms
Chapter 17
Kingdom Fungi Cont’d
Organizing Life’s Diversity
Absorptive Heterotrophs
Can’t move
Cell walls made of chitin
Decompose dead organisms & waste
17.3 Domains and Kingdoms
Chapter 17
Kingdom Plantae
Members of Kingdom Plantae form the base of all terrestrial habitats.
Organizing Life’s Diversity
All plants are multicellular and have cell walls composed of cellulose.
Most plants areautotrophs, but some are heterotrophic.
17.3 Domains and Kingdoms
Chapter 17
Kingdom Animalia
All animals are heterotrophic, multicellular eukaryotes.
Organizing Life’s Diversity
Animal organs often are organized into complex organ systems.
They live in the water, on land, and in the air.
Animal cells never contain a cell wall.
17.3 Domains and Kingdoms
Chapter 17
Organizing Life’s DiversityChapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Chapter 17
1. A2. B3. C4. D
FQ 9
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Organizing Life’s DiversityChapter 17
The five-kingdom classification system had to be changed to a three-domain, six-kingdom system because of the discovery of _______.
A. fungi
B. protists
C. archaebacteria
D. prokaryotes
17.3 Formative Questions
1. A2. B3. C4. D
FQ 10
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Organizing Life’s DiversityChapter 17
17.3 Formative Questions
Which is a characteristic of the species classified in Domain Archaea?
A. They are anaerobic.
B. They are autotrophic.
C. They are extremophiles.
D. Their cell walls
contain peptidoglycan.
1. A2. B3. C4. D
FQ 11
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Organizing Life’s DiversityChapter 17
17.3 Formative Questions
Which kingdom contains heterotrophic, multicellular eukaryotes?
A. Animalia
B. Fungi
C. Plantae
D. Protista
1. A2. B3. C4. D
FQ 12
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Organizing Life’s DiversityChapter 17
17.3 Formative Questions
Which cell wall material distinguishes all of the organisms in Kingdom Plantae?
A. cellulose
B. chitin
C. hyphae
D. peptidoglycan
1. A2. B3. C4. D
FQ 13
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Organizing Life’s DiversityChapter 17
17.3 Formative Questions
Which group of dissimilar organisms were placed into the same kingdom partly because they don’t fit into any other kingdoms?
A. eubacteria
B. eukaryotes
C. fungi
D. protists
1. A2. B3. C4. D
CAQ 3
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Organizing Life’s DiversityChapter 17
Chapter Assessment Questions
Which is not one of the three domains?
A. Archaea
B. Bacteria
C. Eukarya
D. Fungi
1. A2. B3. C4. D
STP 1
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Organizing Life’s DiversityChapter 17
For which organism would it be best for scientists to use the scientific name rather than the common name?
A. great blue heron
B. bottlenose dolphin
C. sea horse
D. whitetail deer
Standardized Test Practice
1. A2. B3. C4. D
STP 5
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Organizing Life’s DiversityChapter 17
Standardized Test Practice
Why aren’t mushrooms classified as plants?
A. They are heterotrophs.B. They don’t have
cell walls.C. They don’t absorb
nutrients from their environment.
D. They lack motility— the ability to move.