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ICSE Class 10 Biology Chapter-Wise Weightage 2024

Check out the complete details regarding ICSE Class 10 Biology Chapter-Wise Weightage 2024 below. Find here the breakdown of the marks distribution for the theory paper.

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ICSE Class 10 Biology Chapter-Wise Weightage 2024: In ICSE Biology syllabus, there are a total of six units with heavier weightage on the first three units. While referring to the unit-wise and chapter-wise weightage provided here, it is important to note that it is unofficial and hence, there may be variations in the actual question paper. The marks distribution provided here is analysed from the previous years’ papers and the sample paper for this year. The following provides an idea about the approximate expected weightage per chapter and thus will allow the candidate to plan their studies accordingly.

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ICSE Class 10 Biology Chapter-Wise Weightage 2024

The weightage distribution for all units and their respective chapters are as follows:

Unit 1: Basic Biology

ChapterTotal Weightage
Structure of Chromosomes, Cell Cycle and Cell Division12 to 14 marks
Genetics – Some Basic Fundamentals8 to 10 marks

Unit 2: Plant Physiology

ChapterTotal Weightage
Absorption by Roots3 to 5 marks
Transpiration1 to 4 marks
Photosynthesis12 to 14 marks
Chemical Co-ordination of Plants3 to 5 marks

Unit 3: Human Anatomy & Physiology

ChapterTotal Weightage
The Circulatory System8 to 10 marks
The Excretory System3 to 5 marks
The Nervous System4 to 6 marks
Sense Organs8 to 11 marks
The Endocrine System4 to 5 marks
The Reproduction System12 to 14 marks

Unit 4, Unit 5, and Unit 6

ChapterTotal Weightage
Unit 4: Human Evolution4 to 6 marks
Unit 5: Population2 to 3 marks
Unit 6: Pollution7 to 9 marks


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