Skip to main content
Chapter 29 of 41
Revision Notes

Cellular Respiration in Plants

Telangana Open School (TOSS) · Class 12 · Biology

Quick revision notes for Cellular Respiration in Plants — Telangana Open School (TOSS) Class 12 Biology. Key concepts, formulas, and definitions for last-minute revision.

43 questions25 flashcards4 concepts

Interactive on Super Tutor

Studying Cellular Respiration in Plants? Get the full interactive chapter.

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

1,000+ Class 12 students started this chapter today

Key Topics to Revise

1

1. Overview of Cellular Respiration

  • Cellular respiration is the process by which cells break down food (like glucose) to release energy.
  • It is a catabolic and exergonic process, meaning it breaks down molecules and releases energy.
  • The energy released is stored in ATP (Adenosine Triphosphate), the energy currency of the cell.
2

2. Steps of Aerobic Respiration

  • Aerobic respiration occurs in four main steps: Glycolysis, Pyruvate Oxidation, Krebs Cycle, and Electron Transport System.
  • Glycolysis occurs in the cytoplasm and breaks glucose into two pyruvate molecules.
  • Pyruvate is converted to Acetyl CoA before entering the Krebs cycle in mitochondria.
3

3. Anaerobic Respiration and Fermentation

  • Anaerobic respiration occurs in the absence of oxygen and includes glycolysis followed by fermentation.
  • Fermentation regenerates NAD⁺ so glycolysis can continue producing 2 ATP.
  • Two common types: alcoholic fermentation (in yeast) and lactic acid fermentation (in muscles).
4

4. Significance and Applications

  • Krebs cycle is amphibolic — involved in both breakdown (catabolism) and synthesis (anabolism).
  • Intermediates like alpha-ketoglutaric acid are used to make amino acids.
  • Fermentation is used in food industry — bread, alcohol, curd, and idli/dosa preparation.

Get complete notes with diagrams and examples

Full Notes

Key Concepts

Glycolysis is the first stepAfter glycolysisThe NADH and FADH2 producedWhen oxygen is not available

Frequently Asked Questions

What are the important topics in Cellular Respiration in Plants for Telangana Open School (TOSS) Class 12 Biology?
Cellular Respiration in Plants covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Cellular Respiration in Plants — Telangana Open School (TOSS) Class 12 Biology?
Understand the core concepts first, then work through the 43 practice questions available for this chapter. Revise formulas and 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.

For serious students

Get the full Cellular Respiration in Plants chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for Telangana Open School (TOSS) Class 12 Biology.