Protista Test Flashcards
What is a protist? (5 things)
- One or many celled organisms
- Eukaryotic cells (have nucleus)
- Some are plant like-called algae
- Some are animal like-called Protozoa
- Some are fungus like
What are the 6 groups of algae?
- Diatoms
- Dinoflagellates
- Euglenas
- Red algae
- Green algae
- Brown Algae
What are Diatoms made of?
Silica
What are Diatoms used in? (2 things)
Toothpaste and insulation
What does dinoflagellates mean?
Spinning Flagellate
What are caused by Dinoflagellates?
Red Tides
What can Red Tides do?
Kill fish, producing toxins
What do Euglenas have the characteristics of?
Both plants and animals
What group of algae has an eyespot in the front?
Euglena
What part of red algae is used in food?
Carrageenan found in the cell walls
What foods are red algae used in?
Pudding, peanut butter, toothpaste, and creamy salad dressing
What is the most common algae in PA?
Green algae
Where do most green algae live?
Underwater, sometimes on the sides of homes and on sidewalks.
What creatures eat green algae?
Fish, snails, tadpoles, and crayfish
How long can some kelp get?
100 meters long
What part of brown algae is used in food?
The algin from cell walls
What are the aligns in brown algae used for?
To thicken ice cream, marshmallows, chocolate milk, hand lotions, and to wrap sushi.
What are the four groups of protozoans?
- Ciliates
- Flagellates
- Sarcodines
- Sporozoans
How are protozoans grouped?
By the way they move
How do ciliates move?
Cilia
Are ciliates fast?
Yes, very fast
What is the most common example of ciliates?
Paramecium
What do most ciliates feed on?
Bacteria
What is an example of a Flagellate?
African sleeping sickness
What causes African sleeping sickness?
Trypanosoma
How do Flagellates move?
Flagella (Medium speed)
What are parasites?
Organisms living in or on another causing it harm
What is a host?
An organism with a parasite
How do sarcodines move?
Pseudopods (false feet) - very slow
How do pseudopods work?
The membrane stretches out to move the organism.
Do sporozoans move?
No, they do not move
What is the protist that causes Malaria?
Plasmodium
How is Malaria spread?
The disease is carried by mosquitoes
What are the four features of slime molds?
- Very colorful, dry, and crunchy
- Feed on decaying debris
- Move with pseudopods - slow
- Found in shady/damp areas
How does water mold affect fish? (2 things)
- Can kill fish
- Grows on fish
How did water mold affect the Irish?
Created the 1849, Irish potato famine which wiped out the potato crop, leaving many dead or fleeding the country. (1 million for each)
