43. Intext question V

 

Sclerenchyma tissueCollenchyma tissueParenchyma tissue, which supports the structural support of plants, is composed of mature dead cells with thicker walls living cells with thin walls   that contain lignin and a high concentration of cellulose. Nuts and fruits are protected from the environment by cells with thick walls that are typically lignified. Since it provides the plant with mechanical strength and rigidity, it is also referred to as its supporting tissuepackaging tissue.