Final answer:
The ground tissue system in plants is responsible for basic metabolic functions and support. It consists of parenchyma, collenchyma, and sclerenchyma cells, each with their own roles. The functions of the ground tissue system include photosynthesis, support, and food storage.
Step-by-step explanation:
Defining Features
Ground tissue is one of the three tissue systems found in plant stems. It makes up much of the interior of a plant and carries out basic metabolic functions. Ground tissue in stems provides support and may store food or water. In roots, ground tissue also stores food.
Cellular Components
The cellular components of the ground tissue system include parenchyma, collenchyma, and sclerenchyma cells. Parenchyma cells are responsible for photosynthesis and storage of food and water. Collenchyma cells provide structural support and flexibility to the plant. Sclerenchyma cells are the dead, heavily lignified cells that provide rigidity and support.
Functions
The ground tissue system has two main functions. First, it is responsible for photosynthesis, which is carried out by the parenchyma cells. Second, it provides support to the plant, which is facilitated by the collenchyma and sclerenchyma cells. Additionally, the ground tissue in stems can store food or water, and in roots, it primarily stores food.