Fill in the blanks:
1 . In plant cells the vacoules can occupy up to …a… of the volume of the cell.
2 . In the plants , the tomoplast facilitates the transport of a number of ions and other materials …b… concentration gradient into the vacoule, hence their concentration is significantly ...c... in the vacuole than in the cytoplasm.
3 . In Amoeba the ...d... vacuole is important for excertion .
4 . In many cells, as in protists...e... vacuoles are formed by engulfing the food particles.

Options

A. a`-`70%, b`-`along, c`-`higher, d`-`food, e`-`contractile.
B. a`-`70 to 90%, b`-`against, c`-`higher, d`-`contractile, e`-`food
C. a`-`90%, b`-`against, c`-`lower, d`-`contractile, e`-` inclusion.
D. a`-`90%, b`-`against, c`-`higher, d`-`contractile, e`-`food.

Answer

D

Explanation

a. In plant cells have vacuoles can occupy up to 90% of the volume of the cell
b. In plants the tonoplast facilitates the transport of a number of ions and other materials against concentration gradient into the vacuole, hence their concentration is significantly higher in the vacuole than in the cytoplasm.
c. In Amoeba the contractile vacuole is important for excertion.
d. In many cells, as in protists food vacuoles are formed by engulfing the food particles.