Domains & Kingdoms (17.3)
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.
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Grouping Species
 The broadest category in the classification used
by most biologists is the domain.
 All organisms fit into one of 3 domains:
Domain Archaea
Domain Bacteria
Domain Eukarya
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Grouping Species
Cont’d
 Within the 3 domains,
modern taxonomy
defines six kingdoms.
 The six kingdoms are
Eubacteria,
Archaebacteria,
Protists, Fungi,
Plantae, & Animalia.
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Prokaryotes
 All prokaryotic organisms
are either in Domain
Bacteria or Domain
Archaea.
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
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.
 Eubacteria are a diverse
group that can survive in
many different environments.
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Domain Archaea
 Domain Arachaea only contains 1
kingdom: Archaebacteria.
 Archaeabacteria are thought to be
more ancient than eubacteria.
 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.
• NO PEPTIDOGLYCAN
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Domain Eukarya
 All eukaryotes are classified in Domain
Eukarya.
 Domain Eukarya includes 4 Kingdoms:
Protista, Fungi, Plantae, & Animalia.
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Kingdom Protista
 Protists are eukaryotic organisms that can be
unicellular, colonial,
or multicellular.
 Protists are
classified into three
different groups—
plantlike, animallike, and funguslike.
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Kingdom Protista Cont’d
• 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.
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Kingdom Fungi
 A fungus is a unicellular or multicellular
eukaryote that absorbs
nutrients from organic
materials in its
environment.
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Kingdom Fungi Cont’d
 Absorptive Heterotrophs
 Can’t move
 Cell walls made of chitin
 Decompose dead
organisms & waste
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Kingdom Plantae
 Members of Kingdom Plantae form the base
of all terrestrial habitats.
 All plants are
multicellular and have
cell walls composed of
cellulose.
 Most plants are
autotrophs, but some are heterotrophic.
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Kingdom Animalia
 All animals are heterotrophic, multicellular
eukaryotes.
 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.
Chapter 17
Organizing Life’s Diversity
Chapter 17
Organizing Life’s Diversity
17.3 Domains and Kingdoms
Chapter 17
Organizing Life’s Diversity
17.3 Formative
Questions
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
1.
2.
3.
4.
0%
A
A
B
C
D
0%
B
0%
C
0%
D
Chapter 17
Organizing Life’s Diversity
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.
2.
3.
4.
0%
A
A
B
C
D
0%
B
0%
C
0%
D
Chapter 17
Organizing Life’s Diversity
17.3 Formative
Questions
Which kingdom contains heterotrophic,
multicellular eukaryotes?
A. Animalia
B. Fungi
C. Plantae
D. Protista
1.
2.
3.
4.
0%
A
A
B
C
D
0%
B
0%
C
0%
D
Chapter 17
Organizing Life’s Diversity
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.
2.
3.
4.
0%
A
A
B
C
D
0%
B
0%
C
0%
D
Chapter 17
Organizing Life’s Diversity
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.
2.
3.
4.
0%
A
A
B
C
D
0%
B
0%
C
0%
D
Chapter 17
Organizing Life’s Diversity
Chapter Assessment
Questions
Which is not one of the three domains?
0%
0%
0%
D
A
B
C
D
C
A
0%
1.
2.
3.
4.
B
A. Archaea
B. Bacteria
C. Eukarya
D. Fungi
Chapter 17
Organizing Life’s Diversity
Standardized Test
Practice
For which organism would it be best for
scientists to use the scientific name rather
than the common name?
0%
0%
0%
D
A
B
C
D
C
A
0%
1.
2.
3.
4.
B
A. great blue heron
B. bottlenose dolphin
C. sea horse
D. whitetail deer
Chapter 17
Organizing Life’s Diversity
Standardized Test
Practice
Why aren’t mushrooms classified as plants?
0%
B
A
0%
A
B
C
D
0%
0%
D
1.
2.
3.
4.
C
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.