Question

In plants, transportation of metabolites from shoot to root occurs through:

• A. Xylem
• B. Phloem
• C. Casparian strip
• D. Endodermis

Hint:

Xylem transports water, while phloem transports food and metabolites.

Answer 1

The Correct Option is B

Concept:
Plants have two main conducting tissues: xylem and phloem.

Step 1: Function of xylem.
Xylem mainly transports water and minerals from roots to shoots. \[ \text{Xylem} \rightarrow \text{water and minerals} \]

Step 2: Function of phloem.
Phloem transports food and metabolites from source organs to sink organs. \[ \text{Phloem} \rightarrow \text{food and metabolites} \]

Step 3: Apply to the question.
Metabolites formed in shoots may be transported to roots through phloem. \[ \text{Shoot to root transport} \rightarrow \text{Phloem} \] \[ \therefore \text{Correct Answer is (B)} \]