Vacuole Flashcards
Single membrane of vacuole is called
Tonoplast.
Permeability of vacuole?
Semi permeable
Meristematic cells do not contain vacuoles because
Because they posses power of division.
Permanent cells contain or not contain vacuoles?
Permanent cells contain large vacuoles which occupy 90% of the volume of cell.
What are the types of vacuole?
- Sap vacuole
- Food vacuole
- Contractile vacuole
- Gas vacuole
What does sap vacuole contain?
Water, sap, excretory product and other materials not useful for the cell.
Occupied upto 90% space.
How are food vacuole formed?
By engulfing food material.
For eg:- in protist
Contractile vacuole is found in
In amoeba as it helps in secretion.
What are also known as pseudo vacuoles?
Gas vacuoles
In which vacuole is tonoplast absent?
Gas vacuoles
Which vacuole provides buoyancy ( air lift ) ?
Gas vacuole
Eg:- bacteria
