Class 12 · Microbes in Human Welfare

Microbial Metabolism: Gases Released — NEET Biology

📚 Practice Concept
📖 NCERT Source

Give examples to prove that microbes release gases during metabolism.

NCERT Biology · Class 12 · Chapter 8 · Paragraph 39
Practice This Concept
QuestionPractice Question

Which of the following statements regarding the gas composition and production in gobar gas plants is/are correct? S1: Biogas is a mixture of gases predominantly composed of methane, carbon dioxide, and often includes hydrogen and hydrogen sulphide. S2: The anaerobic conditions maintained in the digester are crucial for the efficient production of methane by methanogens. S3: Ethylene, a plant hormone, is a common gaseous product of microbial activity in biogas plants along with methane. S4: The type of gas produced during microbial metabolism is independent of the specific organic substrates utilized and the microbes involved. S5: Biogas plants generate only combustible gases, with non-flammable components being entirely absent.

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.

88/90
of the NEET 2026 Biology paper matched from the MedicNEET question bank

MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.

88 of 90 NEET 2026 Biology questions traced to MedicNEET10,000+ Biology questionsHindi + English
Free to start · Hindi + English · 10,000+ questions · NEET 2026 pattern
Related Concepts from Microbes in Human Welfare
📘Practice all 21 NEET PYQs from Microbes in Human Welfare🔍See full Microbes in Human Welfare PYQ Analysis