Name: ________________________
TA: __________________________
Lifeline Week 2 Follow-Along Sheet
Protists
What are Protists?
• ______________________
• Usually unicellular
 Some groups are simple, ____________________
• Often colonial
How are they classified?
• The “_____________-like”
Feed by dissolving food outside of their bodies then absorbing it.
Heterotrophic nutrition
• The “_____________-like”
Called Protozoa
Heterotrophic nutrition
• The “_____________-like”
Called Algae
_______________________ nutrition
The prefixes “hetero-” means _______________________ and “auto-” means ____________________.
I. The Fungus-Like Heterotrophic Protists:
•
Divided in two types, called slime molds:
a. _________________________ Slime mold
b. _________________________Slime mold
Plasmodial Slime Molds:
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•
•
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____________________ divides many times, but the cell does not divide.
Creates a single large ___________________________________ cell called plasmodium.
When food or water runs out, Plasmodium grows sporangia.
Sporangia are reproductive structures that will release ______________________.
Cellular Slime Molds:
•
•
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Cells are typically _______________________ from each other.
Food shortage can trigger the formation of a multi-cellular colony.
Colony grows _____________-________________ that release spores.
II. Animal-Like Heterotrophic Protists:
Use ________ types of organelles for locomotion.
1. ___________________________: cellular extensions used to move and feed. Protists with pseudopodia are
generally referred to as “amoebas”.
•
There are 2 types of pseudopodia:
“________________” Pseudopodia
Rhizopoda/Sarcodina
”_______________” pseudopodia (Axopodia)
Foraminiferans
Actinopods
2. ________________________: Flagellates
-whip-like tail used to move
Ex: Trypanosoma spp.
3. ________________________: Ciliates
- short hair-like extension used for feeding and locomotion
Ex: Paramecium spp.
III. Plant-Like Autotrophic Protists:
Distinguished by body form, ____________________ , and photosynthetic pigments:
Dinoflagellates
• Chlorophylls A & C
• 2 _________________________
• Causes Red Tide
• Bioluminescence
• (some are mixotrophic)
Diatoms
• Chlorophylls A & C
• Cell wall is made of _________________
• Limited locomotion
Green algae
• Closest relative of land plants
• Chlorophylls A & B
• Cell wall made of ___________________
• Flagellated sperm
IV. Plant/Animal-Like Mixotrophs:
Mixotrophic means both autotrophic & heterotrophic.
Modes of nutrition:
• ___________________________________to synthesize their own food.
• _____________________ on other organisms.
Ex: Euglenozoa
Table:
Extra Notes:
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