Question
Biology Question on Cell: the unit of life
pH of vacuolar cell sap is
A
neutral and isotonic
B
alkaline and isotonic
C
acidic and hypertonic
D
equal to cytoplasm and isotonic
Answer
acidic and hypertonic
Explanation
Solution
Vacuole is a non - living reservoir, bounded by a selectively permeable membrane, the tonoplast. It is not a air filled cavity but it is filled with a highly concentrated solution called vascular sap or cell sap. pH of vacuolar cell sap is acidic and hypertonic.