Question

Number of sap vacuoles present in an animal cell is
A. One and large
B. Many and large
C. Many and small
D. None of the above

Answer 1

Hint: A sap vacuole is a membrane-bound cell organelle also called a vacuole. The fluid present in vacuole is called sap. Sap consists of water, inorganic molecules, organic molecules and enzymes.

Complete answer: Eukaryotic cells such as animal cell, plant cell, fungal cell and some protists show the presence of single membrane-bound organelle which is a storage bag of the cell. The number of vacuoles varies in animal cells and plant cells. Functions of vacuoles vary according to the type of cell.
Functions of vacuole are as below:
a) Isolation of harmful material from the cytoplasm of the cell.
b) Maintains the pH of the cell. Tonoplast has H+ proton pumps that pump the H+ ions inside the vacuole.
c) Maintains the cell turgor pressure.
d) Maintain internal hydrostatic pressure.
e) Export unwanted substances from the cell.
f) Contains cell’s waste material.
In animal cells, the process of exocytosis and endocytosis is carried out with the help of vacuole. Vacuoles in an animal cell are smaller and are more in number.
So, the correct answer is option C.

Note: Vacuoles are more prominent in plant cells than that of the animal cells. A plant cell has only one centrally placed vacuole which helps to maintain the cell shape. The membrane of the vacuole is called tonoplast. Some animal cells lack vacuole. Vacuoles are the storage bubbles of the cell. It is the storage tank of the cell.