Question

Vacuoles are surrounded by a single membrane called ________.

Answer 1

1. The membrane surrounding the vacuole is known as tonoplast. Tonoplast is a single membrane that separates the cytoplasm from the vacuoles.
2. Tonoplasts facilitate the transport of many ions and other materials in plants, allowing their vacuole concentration to be higher than the cytoplasm.
3. Generally, Animal cells do not have any vacuole, but sometimes small-sized vacuoles can be found.
4. Hence, Tonoplasts are unique to plant cells and cannot be found in animal cells.