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Chapter 2: Bring It All Together
Complete the chart to compare Archaea, Bacteria, and Protista.
Kingdom
Archaea
Bacteria
Cell Type
Prokaryotic
Number of Cells
Most are unicellular
Protista
Some live in colonies
or filamentous chains
Locomotion
Cannot move
Some have pseudopods,
cilia, or flagella
Some have flagella
Classification based on
Characteristics
Cocci (round)
Bacilli (rod-shape)
Spirilli (spiral shape)
Classification based on
Gram staining
Gram positive: thick
cell wall, purple stain
Petidoglycan Cell Wall
Gram negative: thinner
cell wall, pink stain
Yes
Membrane Bond
Organelles
No chloroplast,
mitochondria, or other
membrane-bound
organelles
DNA and
Chromosomes
Single. Circular
chromosome
Ribosomes in
Cytoplasm
Reproduction
Extremophiles or
Mesophiles
Other Characteristics
Extra-chromosomal
DNA in plasmids
Yes
Animal-like
Plant-like
Fungus-like
Yes
Yes
Asexual and sexual
(mitosis and meiosis)
Both
Only Mesophiles
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