Humus Formation and Mineralization — NEET Biology
📚 Practice ConceptBeing colloidal in nature it serves as a reservoir of nutrients. The humus is further degraded by some microbes and release of inorganic nutrients occur by the process known as mineralisation.
Assertion (A): Mineralisation is the final step in making nutrients available to plants. Reason (R): Mineralisation produces more humus that enriches the soil organic matter content.
View solution & NCERT explanation
Correct answer: C — If assertion is true but reason is false.
NCERT confirms mineralisation makes nutrients available (Assertion true). However, NCERT states “The humus is further degraded by some microbes and release of inorganic nutrients occur by the process known as mineralisation.” The Reason falsely claims mineralisation produces more humus - it actually breaks down humus to release inorganic nutrients, the opposite of humus production.
What does NCERT say about Being colloidal nature it?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.