Protista Flashcards
1
Q
Amoeba properties (kingdom Protista)
A
- Found in freshwater habitats
- Consists of a single cell(reproduce asexually)
- Amoeba are heterotrophic(take in food from other organisms)
- Amoeba are eukaryotic
- Belong to the kingdom Protista
2
Q
Functions of cell components
A
- Protoplasm: living material in the cell
- Cell membrane retains cell contents
- Nucleus controls the cell
3
Q
How do amoeba feed
A
- The pseudopodia allow the Amoebae to move. It is also used to surround and engulf their prey.
- Food vacuoles secretes acids to kill their prey. They produce enzymes to digest their prey.
4
Q
What is the role of the contractile vacuole
A
- Contractile vacuole collects excess water that enters the amoeba and expels it as the fresh water environment is more dilute
5
Q
Osmoregulation
A
- It is the process where the contractile vacuole prevents amoeba from bursting
6
Q
Where is the contractile vacuole more active
A
Contractile vacuoles are more active in fresh water amoeba as more water enters the amoeba due to osmosis
7
Q
Osmoregulation in Amoeba
A
Osmoregulation is important to organisms to keep a constant osmotic pressure within the cell
8
Q
What is responsible for Osmoregulation in amoeba
A
The contractile vacuole
