Osmoregulation (Leaving Cert Biology): Flashcards
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Osmoregulation definition
Osmoregulation definition
Maintenance of H₂O & salt balance in body fluids
Structure for osmoregulation in amoeba
Structure for osmoregulation in amoeba
Contractile vacuoles
Amoeba habitat
Amoeba habitat
Freshwater environments
Water concentration: outside vs inside amoeba
Water concentration: outside vs inside amoeba
Higher outside than inside cytoplasm
How water enters amoeba
How water enters amoeba
Osmosis
What amoeba must remove continuously
What amoeba must remove continuously
Excess water
Osmosis definition
Osmosis definition
Movement of water from high to low concentration across semi-permeable membrane
What happens to contractile vacuole when it fills
What happens to contractile vacuole when it fills
Swells
Where contractile vacuole moves to
Where contractile vacuole moves to
Edge of the cell
How contractile vacuole expels water
How contractile vacuole expels water
Bursts and expels water out of cell
Why osmoregulation cycle repeats in amoeba
Why osmoregulation cycle repeats in amoeba
To continuously remove excess water
What collects excess water in amoeba
What collects excess water in amoeba
Contractile vacuole