CBSE Class 11 · Biology

CBSE Class 11 Biology Exam Preparation

Cell biology, plant physiology, and human physiology — your NEET and board foundation

Complete chapter-wise preparation guide for CBSE Class 11 Biology. Covers cell biology, biomolecules, plant physiology, animal kingdom, and human physiology — with marks distribution and scoring strategy.

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70

Theory Marks

30

Practical Marks

3 hours

Exam Duration

22

Total Chapters

Chapter-Wise Marks Breakdown

108 theory marks
ChapterMarksDifficulty
The Living World4Easy
Biological Classification5Medium
Plant Kingdom5Medium
Animal Kingdom5Hard
Morphology of Flowering Plants6Medium
Anatomy of Flowering Plants5Medium
Structural Organisation in Animals5Medium
Cell: The Unit of Life6Hard
Biomolecules6Hard
Cell Cycle and Cell Division6Hard
Transport in Plants5Medium
Mineral Nutrition4Easy
Photosynthesis6Hard
Respiration in Plants5Medium
Plant Growth and Development4Easy
Digestion and Absorption5Medium
Breathing and Exchange of Gases5Medium
Body Fluids and Circulation5Medium
Excretory Products and Elimination4Medium
Locomotion and Movement4Easy
Neural Control and Coordination5Hard
Chemical Coordination and Integration3Medium

Topics That Appear Every Year

01Cell organelles — all functions with diagrams
02Photosynthesis — light reactions and Calvin cycle
03Respiration — glycolysis, Krebs cycle, ETC with ATP yield
04Cell division — mitosis and meiosis phases
05Animal kingdom — classification criteria for each phylum
06Neural control — neuron structure and synapse mechanism
07Plant growth regulators — all 5 with functions
08Nephron — structure and filtration process

Study Strategy for 90+

1

Biology is diagram-intensive — draw and label every important structure daily

2

Animal kingdom classification: use a table (phylum → features → examples)

3

Photosynthesis and respiration are the highest-weight physiology topics

4

Cell division phases: draw each stage of mitosis and meiosis from memory

5

Human physiology chapters (units 5–6) have maximum NEET overlap — study thoroughly

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