Skip to main content
Super TutorResources
Chapter 25 of 41
Syllabus

Nitrogen Metabolism — Syllabus

Telangana Open School (TOSS) · Class 12 · Biology

What Nitrogen Metabolism covers in Telangana Open School (TOSS) Class 12 Biology: 3 topics, for the 2026-27 session.

52 questions28 flashcards4 concepts

Interactive on Super Tutor

Studying Nitrogen Metabolism? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for syllabus and more.

Try Super Tutor — Free

Free trial, no card needed.

3 Topics · Telangana Open School (TOSS) Class 12 Biology · 2026-27

Topics in Nitrogen Metabolism

1

Nitrogen Cycle Overview

  • The nitrogen cycle is a biogeochemical cycle that describes the movement of nitrogen between the atmosphere, soil, and living organisms.
  • It consists of five main steps: Nitrogen Fixation, Nitrogen Assimilation, Ammonification, Nitrification, and Denitrification.
  • Atmospheric nitrogen (N₂) is inert and must be 'fixed' into ammonia (NH₃) or nitrates (NO₃⁻) before plants can absorb it.
2

Nitrogen Fixation

  • Nitrogen fixation is the conversion of atmospheric nitrogen (N₂) into ammonia (NH₃).
  • It occurs through abiological (non-living) and biological methods.
  • Abiological fixation happens during lightning or via the industrial Haber process.
3

Nitrogen Assimilation and Amino Acid Synthesis

  • Plants absorb nitrogen in the form of nitrates (NO₃⁻) or ammonia (NH₄⁺) from the soil.
  • Nitrates are reduced to nitrites (NO₂⁻) by nitrate reductase, then to ammonia by nitrite reductase.
  • Ammonia is incorporated into amino acids via two main processes: Reductive Amination and Transamination.

Key Concepts

Central concept: Nitrogen Metabolism

Nitrogen CycleNitrogen FixationNitrogen AssimilationAmino Acid SynthesisMicrobial Involvement

Work through every topic in Nitrogen Metabolism with notes and quizzes

Start This Chapter

Frequently Asked Questions

What are the important topics in Nitrogen Metabolism for Telangana Open School (TOSS) Class 12 Biology?
Key topics in Nitrogen Metabolism include Nitrogen Cycle Overview, Nitrogen Fixation, Nitrogen Assimilation and Amino Acid Synthesis. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Nitrogen Metabolism for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 52 practice questions on Nitrogen Metabolism. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Nitrogen Metabolism

All Telangana Open School (TOSS) Class 12 Biology Syllabus

For serious students

Get the full Nitrogen Metabolism chapter — start free.

Quizzes, flashcards, an AI doubt solver and a study plan for Telangana Open School (TOSS) Class 12 Biology. Free to start, no card needed.

Try Super Tutor Free
Try this chapter free