Flashcards
Protista (Amoeba)
Flashcards do conjunto (22)
- 1Kingdom of the amoebaProtista
- 2Amoeba feed byEncolsing its food with a drop of water inside a temporary food vacuole (phagocytosis)
- 3Food vacuoleSmall, membrane-bound space containg solid ingested food
- 4How do digestive enzymes pass into the food vacuole?From the cytoplasm
- 5Where do the soluble particles of digestion go after digestion?Pass out of the vacuole and into the cytoplasm
- 6False feetPseudopodia
- 7ReproductionBinary fission
- 8Binary fissionCell splits into two identical daughter cells
- 9Amoeba proteusHarmless
- 10Entamoeba histolyticaAmoebic dysentry
Found in the Tropics
Can prove fatal (vomiting, abdominal pain) - 11Outer cytoplasmEctoplasm
- 12EctoplasmOuter cytoplasm, stiff, gel-like solid part, slows down the inflow of water and plays an imporatant role in the formation of pseudopodia.
- 13Inner cytoplasmEndoplasm
- 14EndoplasmGrainy, inner cytoplasm (due to food vacuoles and waste materials) More fluid than the ectoplasm.
- 15Function of cell membraneRetain cells contents and to allow gases to diffuse in and out of the cell
- 16Function of the nucleusControls the cell
- 17Function of the food vacuolesSecrete acids to kill prey and then produce enzymes for the prey to be digested. Digested materail is absorbed from the food vacuole into the cytoplasm.
- 18Function of the pseudopodiaUsed for movement. The cytoplasm, especially the endoplasm, flows into the pseudopodia, causing the cell to move. The pseudopodia engulf or surround its prey.
- 19Water moves....by osmosisIN
- 20Function of the contractile vacuoleCollects water that enters the amoeba. Swells, touches the cell membrane and bursts to expel the water. Resonsible for osmoregulation.
- 21OsmoregulationRegulating salt and water. The contractile vacuole maintains the amoeba's cytoplasm at a correct concentation for effictient metabolism.
- 22Do marine and parasitic amoeba have contractile vacuoles? Why?No, their external environment is almost identical in concentration (isotonic)
Informações
- Descrição
- Leaving Certificate Biology (Protista (Amoeba)) FlashCards sobre Protista (Amoeba), criado por eimearkelly3 em 21-07-2013.
- Criado por
- eimearkelly3 · jul 2013
- Atualizado
- 21 jul 2016
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