Download A1.3 SG - Mrs. Lee`s Science Class

7B Science
Mrs. Lee
Study Guide for A1.3
1. What are the 3 characteristics used to place organisms into domains &
kingdoms?
• Cell type (prokaryotes or eukaryotes)
• Cell number (unicellular or multicellular or both)
• Ability to make food (autotrophs or heterotrophs or both)
2. What are prokaryotes & eukaryotes?
• prokaryotes = organisms with NO nucleus in their cells
• eukaryotes = organisms with nuclei (singular = nucleus) in their cells
3. What is a nucleus?
• Nucleus = a dense area that contains nucleic acids
4. How are Bacteria and Archaea similar or different?
• Both bacteria & archaea are unicellular prokaryotes that include
autotrophs and heterotrophs.
• Bacteria and archaea differ in their chemical make-up and structures!
• Archaea lives in extreme conditions such as deep sea vents,
hot springs, very salty water, swamps, and intestines of cows.
These conditions might be similar to ancient Earth.
5. What are the characteristics in all 3 Domains?
Domain/Kingdom
Cell Type
Cell Number
Feeding
Pattern
Examples
Domain Bacteria
Prokaryotes
Unicellular
Autotrophs,
Heterotrophs
Yogurt,
E.coli
Domain Archaea
Prokaryotes
Unicellular
Autotrophs,
Heterotrophs
Deep sea
archaea
Domain Eukarya,
Kingdom Protists
Eukaryotes
Unicellular,
Multicellular
Autotrophs,
Heterotrophs
Amoeba,
seaweed,
paramecium
Domain Eukarya,
Kingdom Fungi
Eukaryotes
Unicellular,
Multicellular
Heterotrophs
Mushroom,
mold
Domain Eukarya,
Kingdom Plants
Eukaryotes
Multicellular
Autotrophs
Tree, grass
Domain Eukarya,
Kingdom Animals
Eukaryotes
Multicellular
Heterotrophs
Human,
dog, cat