Tonoplast is the membrane surrounding the:
(b) Vacuole
The correct option is (b)
Explanation of the correct option
Explanation of the incorrect option
Option (a) Cytoplasm is the fluid matrix inside the cell and is enclosed by plasma membrane.
Option (c) Nucleus is a double membrane bound organelle in the cell. Its membranes are known as outer and inner nuclear membrane.
Option (d) Mitochondria has an outer membrane and an infolded inner membrane called cristae.
Final answer
Tonoplast is the membrane surrounding the vacuole.