Ch23 Protista Flashcards
1
Q
Are amoeba prokaryotic or eukaryotic?
A
Eukaryotic
2
Q
Draw a diagram of an amoeba
OR name the structures you’d find in an amoeba.
A
Pseudopodia, ectoplasm/endoplasm, fat droplets, food vacuole, contractile vacuole, nucleus, waste product
3
Q
What is the function of the food vacuole?
A
Secrete digestive enzymes
4
Q
What is the function of the contractile vacuole?
A
Water regulation / osmoregulation
(without it, amoeba would burst)
5
Q
Describe how the contractile vacuole functions.
A
- Amoeba has higher salt concentration than surrounding water.
- Water enters via osmosis in contractile vacuole.
- Contractile vacuole swells and moves to edge of cell.
- It then bursts and expels water.
(5. Contractile vacuole manages osmoregulation - without it, amoeba would burst.)
6
Q
What do the psuedopodia do?
A
Allow for movement (they are produced at any point on the cell in the direction it wants to go)
Used to engulf prey
7
Q
What is the typical habitat for amoeba?
A
Freshwater / ponds
