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Question #46801
The Question
Kranz anatomy in C4 plants represents a highly specialized spatial organization designed to minimize photorespiration. Regarding the bundle sheath cells and their relationship with the vascular tissue, which of the following statements is INCORRECT?
Options
- A.
Bundle sheath cells contain a large number of chloroplasts, lack intercellular spaces, and possess thick walls impervious to gaseous exchange.
- B.
Anatomically, the bundle sheath is a specialized component of the vascular tissue system that physically encloses the conducting elements.
- C.
The close proximity of the bundle sheath to the vascular bundles facilitates the rapid loading of Calvin cycle products into the phloem.
- D.
Decarboxylation of C4 acids occurs within the bundle sheath, creating a high CO2 concentration that favors the carboxylase activity of RuBisCO.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Comparative_Analysis
Sharpen your ability to evaluate multiple scenarios and distinguish between competing potential answers.
Concepts Behind This Question
Stele|Bundle_Sheath_Cells|Vascular_Bundle
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Tissue System Classification vs.
Physical Location.
Students frequently conflate the physical proximity and naming of the 'bundle sheath' with the 'vascular bundle', incorrectly assuming it belongs to the vascular tissue system.
This trap exploits the cognitive dissonance where ground tissue assumes a highly specialized photosynthetic and structural role directly at the boundary of the stele.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Anatomy of Flowering Plants - Class 11 |
| Concept | Stele Definition |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |