Refer to the following figure of phloem tissue. Which of the following statements correctly describes the relationship between cells Y and Z?

Options

A. Y provides the carbohydrates that are transported by Z.
B. Y transports sucrose, while Z transports water and minerals.
C. Y helps to filter the liquid transported in Z to facilitate translocation.
D. Y contains ribosomes that synthesise proteins required by Z.

Answer

D

Explanation

In the given figure of phloem tissue. Cell Y is companion cell while Z is sieve tube. Sieve tube lacks cellular organelles, e.g., nucleus, ribosomes, etc. Hence, the adjacent companion cells provide proteins, ATP and other molecules to carry out all the cellular functions in sieve tube cells.