Amoeba Flashcards
which kingdom do amoeba belong to?
Kingdom protoctista (protista)
2 characteristics of amoeba
unicellular
eukaryotic
habitat of most amoeba
freshwater streams and ponds
shape of amoeba
no definite shape
2 components of amoeba’s cytoplasm
endoplasm and ectoplasm
what are pseudopods used for?
for movement and feeding
how do amoeba feed
they are heterotrophic
how do amoeba digest their food
they engulf small organisms. digestion takes place in the food vacuoles (enzymes in the food vacuoles)
osmoregulation
the maintenance of the H2O balance and salt balance in body fluids
how is osmoregulation carried out in amoeba
by the contractile vacuoles
what happens to excess water in amoeba
it collects in the contractile vacuoles
what happens to the contractile vacuole when full
it moves out and joins with the cell membrane
after the contractile vacuole joins with the cell membrane
the membrane bursts and expels the excess H2O from the vacuole
what would happen if the contractile vacuole didn’t expel excess water
it would burst
