Biology 2011 JAMB Past Questions - Question 24: The vascular tissues in higher plants are responsible for

Correct Answer

C

Explanation

The vascular tissues in higher plants are the phloem for translocating- food and xylem for water conduction. Transpiration pull is the force generated by the loss of water from the leaves of plant. This loss sets up pressure in the leaves that causes water to rise from the xylem tissue in the stem to the xylem of leaves of the plant. Gases such as oxygen and carbon i . oxide are exchanged between the surrounding air and' the pair through openings called lenticels and stomata. Suction pressure is the force with w h i c h w a t e r e n t e r s a piasmclysed cell.