Question:
Water is the best medium for the transport of dissolved minerals and food molecules because it has ________ .
Water is the best medium for the transport of dissolved minerals and food molecules because it has ________ .
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Water transport = Cohesion + Adhesion. Adhesion helps water climb xylem walls, supporting mineral transport.
Updated On: May 4, 2026
- high surface tension
- high adhesive force
- high adhesive force
- neutral pH
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The Correct Option is B
Solution and Explanation
Concept:
Water plays a crucial role in transport in plants due to its physical properties such as cohesion and adhesion, which help in the movement of substances through xylem.
Step 1: Understand transport mechanism. Water transports dissolved minerals and food molecules through vascular tissues. Adhesion helps water stick to the walls of xylem vessels, aiding upward movement.
Step 2: Analyze the given options.
• (A) High surface tension → Not directly responsible for transport $\times$
• (B) High adhesive force → Helps water stick to vessel walls, aiding transport \checkmark
• (C) High adhesive force → Duplicate option $\times$
• (D) Neutral pH → Not related to transport mechanism $\times$
Step 3: Conclusion. Thus, water is an excellent transport medium because of: \[ \text{High adhesive force} \]
Water plays a crucial role in transport in plants due to its physical properties such as cohesion and adhesion, which help in the movement of substances through xylem.
Step 1: Understand transport mechanism. Water transports dissolved minerals and food molecules through vascular tissues. Adhesion helps water stick to the walls of xylem vessels, aiding upward movement.
Step 2: Analyze the given options.
• (A) High surface tension → Not directly responsible for transport $\times$
• (B) High adhesive force → Helps water stick to vessel walls, aiding transport \checkmark
• (C) High adhesive force → Duplicate option $\times$
• (D) Neutral pH → Not related to transport mechanism $\times$
Step 3: Conclusion. Thus, water is an excellent transport medium because of: \[ \text{High adhesive force} \]
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