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Questions and Answers
What is the function of a vacuole in a cell?
What is the function of a vacuole in a cell?
- It controls the cell's genetic information.
- It generates energy for the cell.
- It aids in cellular respiration.
- It stores useful material and secretory products. (correct)
What percentage of a cell's volume can a vacuole occupy?
What percentage of a cell's volume can a vacuole occupy?
- 90% (correct)
- 50%
- 70%
- 100%
What is the membrane that bounds a vacuole called?
What is the membrane that bounds a vacuole called?
- Cytoplasm
- Nuclear membrane
- Tonoplast (correct)
- Cell wall
Which type of vacuole helps in excretion in amoeba?
Which type of vacuole helps in excretion in amoeba?
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Which of these is not a type of vacuole?
Which of these is not a type of vacuole?
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Study Notes
Vacuole
- A space found within the cell membrane that stores useful materials and secretory products.
- Occupies up to 90% of the cell's volume.
- Surrounded by a semi-permeable membrane called the tonoplast.
- Has a significantly higher rate of transportation compared to the cytoplasm.
- In amoeba, the vacuole plays a crucial role in excretion.
Types of Vacuole
- Contractile Vacuole: a type of vacuole found in certain organisms.
- Food Vacuole: a vacuole responsible for storing food particles.
- Sap Vacuole: a type of vacuole found in plant cells, containing cell sap.
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