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Tools and Techniques — Study Plan

CBSE · Class 11 · Biotechnology

A step-by-step study plan for Tools and Techniques, CBSE Class 11 Biotechnology: what to learn first, what to practise and when to revise.

90 questions108 flashcards2 formulas & key relations5 concepts

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Study Plan

1
Day 1–2

Learn the Theory

Read the textbook chapter carefully. Note down definitions, formulas and key ideas. Focus on: Microscopy, Centrifugation, Electrophoresis.

2
Day 3

Practise

Solve the textbook exercises and extra practice questions. There are 90 questions available for this chapter.

3
Day 4

Revise & Test

Revise key points without looking at your notes. Take a practice quiz and mark weak areas for another pass.

4
Day 7

Spaced Revision

Come back to Tools and Techniques after a week. Use flashcards for quick recall and try past exam questions on this chapter.

What to Focus On

  • Magnification increases retinal image size.
  • Total magnification = objective magnification × eyepiece magnification.
  • Resolving power means the ability to distinguish two very close objects.
  • Centrifugation separates materials using centrifugal force.
  • Differential centrifugation depends on sedimentation rate differences.
  • Density-gradient centrifugation is used for particles of similar size but different density.
  • Electrophoresis separates molecules by charge to mass ratio.
  • Agarose gel electrophoresis separates DNA by size only.
  • DNA moves towards the anode because it is negatively charged.

Common Mistakes to Avoid

Robert Hooke proposed cell theory in 1665.

Magnification and resolving power mean the same thing.

In electron microscopy, the image is seen through an eyepiece like a light microscope.

Memory Tips

Robert Hooke's microscope work and the origin of the term cell

Cell theory proposed by Schleiden and Schwann

Magnification formula

Total magnification of a compound microscope

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Frequently Asked Questions

What are the important topics in Tools and Techniques for CBSE Class 11 Biotechnology?
Key topics in Tools and Techniques include Microscopy, Centrifugation, Electrophoresis, ELISA. Study these first, then practise questions on each for Class 11 exams.
How should I revise Tools and Techniques for Class 11 exams?
Learn the core ideas first, then work through the 90 practice questions on Tools and Techniques. 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 Tools and Techniques

All CBSE Class 11 Biotechnology Study Plan

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