Question:
Choose the incorrect statements of the following:
A) Parenchyma constitute major components of plant organs
B) The anatomy of seed plants was published by Easu
C) Protophloem will have broader sieve tubes
D) Sieve tube functions are controlled by its nucleus
Choose the incorrect statements of the following:
A) Parenchyma constitute major components of plant organs
B) The anatomy of seed plants was published by Easu
C) Protophloem will have broader sieve tubes
D) Sieve tube functions are controlled by its nucleus
Show Hint
Mature sieve tubes are enucleated to facilitate efficient conduction; companion cells act as their "life support".
Updated On: Jun 10, 2026
- A, B
- C, D
- A, D
- B, D
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Concept
Anatomy of phloem and plant tissues.
Step 2: Meaning
Evaluating: A is correct. B is correct. C is incorrect (protophloem typically has narrower sieve tubes). D is incorrect (sieve tube functions are controlled by companion cells, as mature sieve tubes lack nuclei).
Step 3: Analysis
Since the question asks for incorrect statements, C and D are the correct choices.
Step 4: Conclusion
The incorrect statements are C and D.
Final Answer: (B)
Anatomy of phloem and plant tissues.
Step 2: Meaning
Evaluating: A is correct. B is correct. C is incorrect (protophloem typically has narrower sieve tubes). D is incorrect (sieve tube functions are controlled by companion cells, as mature sieve tubes lack nuclei).
Step 3: Analysis
Since the question asks for incorrect statements, C and D are the correct choices.
Step 4: Conclusion
The incorrect statements are C and D.
Final Answer: (B)
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