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Question #45302
The Question
In a rapidly dividing plant tissue subjected to severe metabolic stress, the respiratory pathway operates exclusively in a catabolic mode to maximize ATP generation, completely halting the withdrawal of TCA cycle intermediates. Which of the following cytological consequences is most likely to occur?
Options
- A.
Arrest of karyokinesis at anaphase due to the lack of ATP for spindle fiber depolymerization.
- B.
Development of a coenocytic condition due to the failure of cell plate formation.
- C.
Formation of a syncytium due to the dissolution of existing cell walls and subsequent membrane fusion.
- D.
Immediate arrest of the cell cycle at the G2/M checkpoint due to the inhibition of DNA replication.
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Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Regulatory_Failure
Understand how NOT, EXCEPT, and logical constraints are used to manipulate exam results.
Concepts Behind This Question
Amphibolic Pathway|Plant Cell Cytokinesis|Respiration in Plants
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Integrating the anabolic function of the amphibolic pathway (providing carbon skeletons) with the structural requirements of plant cytokinesis.
Students often assume that if ATP is available, cell division will complete normally, failing to recognize that the cell plate requires massive amounts of carbohydrate precursors diverted from respiration.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Cell Cycle and Cell Division - Class 11 |
| Concept | Plant Cell Cytokinesis |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |