Companion cells are closely accociated with
Or
Transport of food material in higher plants takes place through

Options

A. Sieve elements
B. Vessel elements
C. Trichomes
D. Guard cells

Answer

A

Explanation

Companion cells are connected with sieve elements by compex plasmodesmata. The sieve tubes are syncytes and allow free diffusion of soluble organic substances. The callose also plays important role. Usually the perforations in the sieve plates are surrounded by callose. The callose is solube and disappears when the solute is dilute to that the solute can pass from one cell to another cell through the pores.