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Question #46817
The Question
A temperate dicotyledonous tree is cultivated in a phytotron where optimal 'spring-like' photoperiods and temperatures are artificially maintained year-round. Based on the environmental regulation of vascular cambium activity, which of the following statements regarding the tree's secondary xylem is INCORRECT?
Options
- A.
The tree will fail to form distinct annual rings, thereby complicating dendrochronological analysis.
- B.
The vascular cambium will continuously differentiate into xylary elements possessing wider cavities.
- C.
The sustained high cambial activity will yield secondary xylem with a higher density and darker color than typical late wood.
- D.
The normal seasonal transition from early wood to late wood will be completely abolished.
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
Spring Wood|Autumn Wood|Cambial Ring|Plant Growth and Development
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: The counter-intuitive relationship between cambial activity and wood density.
Students often assume 'high activity and overproduction of elements' equates to 'higher density'.
However, high cambial activity (spring wood) produces wider vessels for maximum water conduction, which increases the void space and actually lowers the overall density and lightens the color of the wood.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Anatomy of Flowering Plants - Class 11 |
| Concept | Spring vs Autumn Wood |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |