Question

In one tissue, cells are isodiametric, walls are thin and made of cellulose. The other tissue consists of long narrow cells with thick and lignified walls. They are

• A. Parenchyma and collenchyma
• B. Parenchyma and sclerenchyma
• C. Sclerenchyma and collenchyma
• D. Sclerenchyma and parenchyma
  

Answer 1

The correct option is B Parenchyma and sclerenchyma

Parenchyma cells have thin primary walls and usually remain alive after they become mature. Sclerenchyma cells have thick lignified secondary walls and often die when mature. Sclerenchyma provides the main structural support to a plant.

So, the correct answer is 'Parenchyma and sclerenchyma.'