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Respiration in Plants

CBSE · Class 11 · Biology

Quick revision notes for Respiration in Plants — CBSE Class 11 Biology. Key concepts, formulas, and definitions for last-minute revision.

100 questions22 flashcards5 concepts

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Key Topics to Revise

1

Do Plants Breathe?

  • Plants require O₂ for respiration and release CO₂, similar to animals
  • Plants don't have specialized respiratory organs like animals
  • Gas exchange occurs through stomata (in leaves) and lenticels (in stems)
2

Glycolysis

  • Also known as EMP pathway (Embden-Meyerhof-Parnas pathway)
  • Occurs in the cytoplasm of all living organisms
  • Glucose undergoes partial oxidation to form two molecules of pyruvic acid
3

Fermentation

  • Incomplete oxidation of glucose under anaerobic conditions
  • Two main types: alcoholic fermentation and lactic acid fermentation
  • Alcoholic fermentation: pyruvate → CO₂ + ethanol (in yeast)
4

Aerobic Respiration

  • Complete oxidation of organic substances in the presence of oxygen
  • Occurs in mitochondria of eukaryotic cells
  • Pyruvate is transported from cytoplasm to mitochondrial matrix

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Full Notes

Key Concepts

The breaking of CThe breakdown of glucose into twoAnaerobic breakdown of pyruvic acid intoCyclic pathway in mitochondrial matrix whereSeries of electron carriers (Complex I

Frequently Asked Questions

What are the important topics in Respiration in Plants for CBSE Class 11 Biology?
Respiration in Plants covers several key topics that are frequently asked in CBSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Respiration in Plants — CBSE Class 11 Biology?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

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

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