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NTPC Graduate Tier 1 2025 Shift-1 📅 06 May, 2025

Which structural-functional issue in a plant root would hinder gas exchange but not significantly impact water absorption?

A
Endodermal cells without suberin
B
Disrupted stomatal apparatus on aerial organs
C
Absence of root hairs due to epidermal deformation
D
Mutated epiblema cells lacking vacuoles
Result Summary
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APEDIA

NTPC Graduate Tier 1
2025 • 06 May, 2025 • Shift-1
Which structural-functional issue in a plant root would hinder gas exchange but not significantly impact water absorption?
Correct Answer
Disrupted stomatal apparatus on aerial organs
Understanding Plant Functions: Roots primarily absorb water and minerals from the soil, while also requiring minimal oxygen for cellular respiration.Aerial vs S......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject General Science
Chapter -
Ref. Topic Biology
Pg. No -
💡 Analysis & Explanation
Understanding Plant Functions ▼
Roots primarily absorb water and minerals from the soil, while also requiring minimal oxygen for cellular respiration.
Aerial vs Subterranean ▼
Stomata, located on aerial parts like leaves and stems, are the primary sites for massive gas exchange (carbon dioxide for photosynthesis, oxygen release).
Impact Analysis ▼
If the stomatal apparatus on aerial organs is disrupted, systemic gas exchange is severely hindered. However, roots independently absorb moisture via root hairs, a process largely unaffected by aerial stomatal damage.
Conclusion ▼
Disrupted stomatal apparatus on aerial organs represents this specific functional division.
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