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Cellular Processes — Revision Notes

CBSE · Class 11 · Biotechnology

Cellular Processes revision notes for CBSE Class 11 Biotechnology: 4 topics in quick points. Part of the CBSE Class 11 Biotechnology syllabus.

58 questions116 flashcards5 formulas & key relations5 concepts

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Key Topics to Revise

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1. Cell Signaling

  • A receptor is a protein located either on the cell surface or inside the cytoplasm or the nucleus.
  • A chemical messenger to which a receptor responds is a ligand.
  • The association between a receptor and its corresponding ligand is highly specific.
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2. Metabolic Pathways and Energy Use

  • Metabolism is the process through which living organisms take and utilise free energy for life processes.
  • Living organisms are of two types on the basis of taking free energy: phototrophs and chemotrophs.
  • Phototrophs use sunlight to convert simple molecules into energy-rich molecules.
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3. Glycolysis and Fate of Pyruvate

  • Glycolysis is a universal catalytic pathway in all living cells and is also known as the Embden-Meyerhof-Parnas pathway.
  • Glycolysis occurs entirely in the cytosol.
  • The pathway begins with phosphorylation of glucose to glucose-6-phosphate by hexokinase.
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4. Citric Acid Cycle and Electron Transport Chain

  • The citric acid cycle is also known as Kreb's cycle or Tricarboxylic acid cycle.
  • The citric acid cycle takes place inside mitochondria, unlike glycolysis which occurs in the cytosol.
  • Hans Kreb discovered the citric acid cycle.

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Full Notes

Key Concepts

Cells respond only when they possessMetabolism is the use of freeGlycolysis is a universal pathwayPyruvate may undergo homolactic fermentationThe pyruvate dehydrogenase complex is found

Frequently Asked Questions

What are the important topics in Cellular Processes for CBSE Class 11 Biotechnology?
Key topics in Cellular Processes include Cell Signaling, Metabolic Pathways and Energy Use, Glycolysis and Fate of Pyruvate, Citric Acid Cycle and Electron Transport Chain. Study these first, then practise questions on each for Class 11 exams.
How should I revise Cellular Processes for Class 11 exams?
Learn the core ideas first, then work through the 58 practice questions on Cellular Processes. 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.

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All CBSE Class 11 Biotechnology Revision Notes

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