Lichens — Predicted 2026

AI-Predicted Question Angles for UPSC 2026

Based on trend analysis, current affairs, and recurring themes in Lichens.

Detailed mechanism of $SO_2$ impact on lichens

medium

While the fact that lichens are $SO_2$ indicators is well-known, NEET might delve slightly deeper into *how* $SO_2$ affects them. Questions could ask about the specific cellular damage, impact on photosynthesis, or disruption of the fungal-algal transfer of nutrients. This would test a more nuanced understanding beyond simple recall.

Differentiation between types of symbiotic relationships involving fungi

high

The 'Biological Classification' chapter also covers mycorrhizae. A common predicted angle is a comparative question, asking to differentiate between lichens and mycorrhizae based on partners, benefits, or ecological roles. This tests a student's ability to distinguish between similar-sounding biological concepts.

Specific examples of mycobionts and phycobionts

medium

Beyond just knowing 'fungus' and 'alga/cyanobacterium,' questions could ask for specific genera, e.g., *Trebouxia* (alga) or *Nostoc* (cyanobacterium) as phycobionts, or the fact that most mycobionts are ascomycetes. This requires a slightly deeper level of factual recall than general definitions.