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Questions and Answers
What is the term for an extension of the cytoplasm used for movement in amoebas?
What is the term for an extension of the cytoplasm used for movement in amoebas?
- Vacuole
- Membrane
- Nucleus
- Pseudopod (correct)
What is the role of the contractile vacuole in amoebas?
What is the role of the contractile vacuole in amoebas?
Regulating water balance
What is the function of the food vacuole in amoebas?
What is the function of the food vacuole in amoebas?
Digestion and storage of nutrients
What is the role of the nucleus in an amoeba?
What is the role of the nucleus in an amoeba?
What structure protects the cell and allows selective entry and exit of substances?
What structure protects the cell and allows selective entry and exit of substances?
What part of the cytoplasm is responsible for carrying out metabolic processes?
What part of the cytoplasm is responsible for carrying out metabolic processes?
What is the outer region of the cytoplasm called that helps in movement?
What is the outer region of the cytoplasm called that helps in movement?
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Study Notes
Cell Structures in Amoeba
- Pseudopod: Temporary protrusion of the cell membrane and cytoplasm used for locomotion and capturing prey.
- Contractile Vacuole: Organelles that regulate water balance by expelling excess water, maintaining osmotic pressure.
- Food Vacuole: Membrane-bound sacs enclosing food particles, where digestion occurs after ingestion.
- Nucleus: Control center of the cell containing genetic material (DNA) and responsible for cellular functions and reproduction.
- Membrane: The semipermeable barrier surrounding the amoeba, controlling the entry and exit of substances.
- Endoplasm: Inner fluid region of the amoeba, where organelles are suspended and metabolic processes occur.
- Ectoplasm: Gel-like outer region of the cytoplasm, providing structure and facilitating movement.
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