Download Multicellular

Cells
Key Questions:
-What is in a cell?
-What do they look like?
-How are the cells arranged?
-How do the organisms eat?
-What are some examples of species?
The domains of life
Animals! (Eukaryotic)
• Complex, multicellular or unicellular organisms
• Require nutrition from outside sources
• May be carnivorous, omnivorous or herbivorous
• Include reptiles, amphibians, birds, mammals, fish and
US
• Cells are about 50 μm long
Plants! (Also eukaryotic)
• Multicellular, cell walls, and chlorophyll
• Largest and longest-living things on Earth
• Cells are about 100 μm long
Fungi! (ALSO eukaryotic)
•Multicellular;
complex, or
single celled
•cell walls, no
chlorophyll
•Mold, Yeast,
Mushrooms
•Cells 5 – 50 μm
long
Protists! (ALSO EUKARYOTIC!!!!)
• Single-celled or
multicellular
• Some plant, some animal
type cells.
• Nucleus
• Protozoans (animal-like)
• Algae (plant-like)
• Cells up to 300 μm long.
Bacteria!
• Smallest and simplest
lifeforms
• Unicellular (one-celled)
• no nucleus
• Bacteria and
cyanobacteria
• Cells around 1- 3 μm
long
Summary:
Characteristics
Animal
Fungi
Plants
Bacteria
Number of Cells
Multicellular
Multicellular and
unicellular
Multicellular
Unicellular
Nucleus
Present
Present
Present
Absent
Cell Wall
Absent
Present
Present
Absent
Large Vacuole
Absent
Absent
Present
Absent
Chloroplasts
Absent
Absent
Present in leaf
and stem cells
Absent
Size
50 μm
5- 50 μm
100 μm
1-3 μm
Questions
•What are two characteristics of
the bacterial cells?
•What is meant by unicellular?
Questions
•What are some characteristics
of Fungi?
•What are some characteristics
of animal cells?