However as the stomata opens and closes much water vapor is lost which causes many plants to have a desire for water. Small leaves like the one in this plant are used for harsh dry climates because they sacrifice some photosynthetic advantages for water advantages. Roots Roots have two main objectives. The first is two anchor the plant down to the ground. The second is to take water and minerals from the soil.
Roots have three main parts the cortex the vascular cylinder and the epidermis.
The endodermis, which is a thin layer right in the middle of the cortex, regulates the passage of substances into the vascular tissues. This means that the endodermis decides what the rest of the plant should get. The vascular cylinder is surrounded by a pericycle. The pericycle is where branch roots arise. Its vascular cylinders are made of phloem, and xylem.