Question

Pteridophytes were the first group of plants to have developed the vascular tissues. Lack of which components' bundles made space for further evolution?

• A. Sieve tube and companion cells
• B. Vessels and tracheids
• C. Companion cells and vessel
• D. Xylem sclerenchyma and phloem fibres

Answer 1

The correct option is C Companion cells and vessel

Vascular tissues were first observed in pteridophytes. However they do not have vessels and companion cells.

Companion cells are a type of vascular cells. Companion cells provide energy to cells for transport. Thus, through the introduction of these vessels, the water transport capacity of plants along with the transport of food has greatly increased. So, they have paved the way for the evolution of plants and their betterment.

So, option C " Companion cells and vessel" is the correct answer.