Amoeba (Leaving Cert Biology): Flashcards

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Amoeba
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Cell type of all protista

Eukaryotic

Cellular organisation of most protista

Single-celled organisms

Amoeba reproduction method

Asexually through mitosis

Amoeba nutritional type

Heterotrophic

Amoeba habitat examples

Freshwater rivers, streams, lakes, ponds, seas, oceans

Definition of heterotrophic organisms

Cannot make food, must use food made by other organisms

Definition of mitosis

Nuclear division forming 2 nuclei with same chromosome number as parent

Number of cytoplasm layers in amoeba

Two layers

Outer cytoplasm layer in amoeba

Ectoplasm (thin outer layer)

Inner cytoplasm layer in amoeba

Endoplasm (fluid inner layer)

Functions of pseudopodia in amoeba

Movement and feeding

Function of nucleus in amoeba

Controls all cell activities

Function of contractile vacuole

Osmoregulation

Function of food vacuole in amoeba

Secretes acid & enzymes to kill & digest prey

Function of fat droplets in amoeba

Store fat as energy reserve

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