Vacuoles are membrane-bound organelles that are found in all plant cells. They vary in size and number depending on the plant cell type and stage of development. However, all vacuoles have one common function: to store water and other materials.
The volume of mature plant cells taken up by vacuoles can vary depending on the cell type and stage of development. For example, guard cells which surround stomata (pores in the leaves through which gas exchange occurs) are typically smaller and have fewer vacuoles than other types of plant cells. This is because guard cells need to be able to change shape quickly in order to open and close the stomata. On the other hand, cells in the root system tend to be larger and have more vacuoles than other types of plant cells. This is because roots need to store a lot of water in order to support the plant.
In general, the volume of mature plant cells taken up by vacuoles increases as the plant matures. This is because vacuoles play an important role in plant growth and development. As the plant grows, more vacuoles are needed to store water and other materials. Additionally, vacuoles help to keep the plant cell rigid. Without vacuoles, plant cells would collapse due to their own weight.
So, to answer the question, the volume of mature plant cells taken up by vacuoles can vary depending on the cell type and stage of development. However, in general, the volume of mature plant cells taken up by vacuoles increases as the plant matures.