Question:
Choose the incorrect statements:
I. Transport of water and minerals is essentially unidirectional from roots to stem.
II. Phloem facilitates unidirectional flow of water and minerals.
III. Organic and mineral nutrients undergo multidirectional transport through phloem.
Choose the incorrect statements:
I. Transport of water and minerals is essentially unidirectional from roots to stem.
II. Phloem facilitates unidirectional flow of water and minerals.
III. Organic and mineral nutrients undergo multidirectional transport through phloem.
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Xylem = Water (Up); Phloem = Food (Everywhere/Multidirectional).
Updated On: Jun 6, 2026
- I and III
- II and III
- I and II
- I, II and III
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Concept
Plant transport mechanisms.
Step 2: Meaning
Evaluating directional transport in Xylem and Phloem tissues.
Step 3: Analysis
Statement I is incorrect because, while water transport is largely from roots to stem, it is not "essentially" unidirectional due to transpiration and physiological needs. Statement II is incorrect because phloem facilitates multidirectional flow, not unidirectional. Statement III is correct as organic nutrients are indeed transported in multiple directions. Thus, I and II are incorrect.
Step 4: Conclusion
Statements I and II are false.
Final Answer: (C)
Plant transport mechanisms.
Step 2: Meaning
Evaluating directional transport in Xylem and Phloem tissues.
Step 3: Analysis
Statement I is incorrect because, while water transport is largely from roots to stem, it is not "essentially" unidirectional due to transpiration and physiological needs. Statement II is incorrect because phloem facilitates multidirectional flow, not unidirectional. Statement III is correct as organic nutrients are indeed transported in multiple directions. Thus, I and II are incorrect.
Step 4: Conclusion
Statements I and II are false.
Final Answer: (C)
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