๐ข22 Protista (Amoeba) Flashcards
What kingdom does Amoeba belong to?
Protista
What is the habitat for Amoeba
Fresh water
Amoeba takes in food therefore it isโฆ
heterotrophic
What does Amoeba eat?
Omnivorous -> eats other single celled protists, plants, and animals
Structure of Amoeba
Protoplasm consists of nucleus and surrounding cytoplasm
Has a flexible membrane allowing cell to change shape and constantly move
Outer cytoplasm is clear + stiff
Inner cytoplasm grainy due to food vacuoles and waste
Describe typical size of amoeba
0.1mm in diameter
Is the cell of amoeba prokaryotic or eukaryotic and why
Eukaryotic
As it is protista and has a membrane bound nucleus
Give one function of pseudopodia in amoeba
Extends in direction the amoeba wishes to move
Engulfs prey
๏ฟผ
How does amoeba take in food
Pseudopodia elongate and engulf food
The food gets trapped in a bubble and taken into the cytoplasm
The bubble containing food becomes the food vacuole
The food vacuole can secrete acids and enzymes to kill and digest pret
What do food vacuoles do?
Secret acids and enzymes to kill and dogest prey
What does tje contractile vacuole do
Collects wxcess water that enters the amoeba
It expands and morphs into cell membrane
Bursts to expel the water outside of the cell membrane
Without it the amoeba would burst
Why does water enter amoeba by osmoregulatiom
Because amoeba lives in freah water so its cytoplasm is more concentrated than its external environment
What is the inner cytoplasm of aMoeba called
ENDOPLASM
Whats the outer cytoplasm of amoeba called
ECTOPLASM
Describe texture of endoplasm (inner cutoplasm)
grainy due to food vacuoles and waste materials
