Answer:
For food production and
storage.
For strength and support
For protection and
support. (Ans. A)
Step-by-step explanation:
Parenchyma: These cells are responsible for the formation of many other tissues and cells. These cells are mostly found in the soft part of the plant. Cell shapes of these cells are isodiametric and cell wall (composed of cellulose) thin in structure. Between these cells intracellular space is present. Main function of these cells are storage of food, in photosynthesis and exchange of the gaseous particles.
Collenchyma: The epidermal cells present on plants are made up of these cells. These cells are found in the petioles, leaves, and stems. Cell are elongated in shape and cell wall (composed of cellulose and pectin) is uneven. Less intracellular space present between the cells. Main function of these cells are providing mechanical support.
Sclerenchyma: Hard and outer parts of the plant made up of these cells. These cells are present in the mature parts of the plant. Cells are elongated, fiber in shape and cell wall (composed of lignin) hard and thick. Intracellular space is not present in these cells so these are tightly packed. Main function of these cells are providing protection and support.