Question
In plants, transportation of metabolites from shoot to root occurs through :
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
Phloem
Plant Metabolite Transport Explained
Plants have distinct vascular tissues for transporting substances:
- Xylem: Transports water and minerals primarily from roots to the shoot.
- Phloem: Transports sugars (metabolites) and other organic nutrients from source areas (e.g., leaves in the shoot) to sink areas (e.g., roots).
- Casparian Strip: A feature within the root's endodermis that controls water and solute entry into the vascular tissue.
- Endodermis: The inner layer of root cortex containing the Casparian strip.
The movement of metabolites, like sugars produced during photosynthesis in the shoot, to the roots for energy and storage is facilitated by the specialized tissue known as the phloem. This directional transport is crucial for overall plant function.
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