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Question #45327
The Question
In angiosperms, the developing embryo requires substantial nourishment, which is typically provided by the endosperm. However, metabolic trade-offs and resource limitations have led to diverse seed storage strategies. Which of the following statements regarding these storage tissues is INCORRECT?
Options
- A.
In non-albuminous seeds like pea and groundnut, the endosperm is completely consumed by the developing embryo prior to seed maturation.
- B.
Black pepper and beet retain a persistent nucellus, known as perisperm, which acts as a diploid maternal nutritive tissue.
- C.
Albuminous seeds such as wheat, maize, and castor retain a portion of the endosperm as it is not completely consumed during embryonic development.
- D.
Perisperm and endosperm are both post-fertilization, triploid storage tissues, but perisperm develops as a compensatory mechanism when the primary endosperm nucleus degenerates.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Evolutionary_Exception
Tackle problems where standard rules evolve or change based on specific environmental constraints.
Concepts Behind This Question
Seed Maturation|Perisperm|Pericarp
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Functional Overlap and Ploidy Confusion.
Students frequently equate 'nutritive seed tissue' strictly with the triploid endosperm.
The trap exploits this by falsely categorizing the perisperm (a diploid, pre-fertilization maternal nucellar remnant) as a post-fertilization triploid product, testing the student's ability to distinguish between analogous functional structures with different developmental origins.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Sexual Reproduction in Flowering Plants - Class 12 |
| Concept | Endosperm Development Sequencing |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |