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Maharashtra HSC (12th) Biology Chapter-Wise Weightage 2023: Know most important chapters & topics

Chinmayai Ajay Bobade
Chinmayai Ajay BobadeUpdated On: January 13, 2023 04:14 pm IST
Maharashtra 12th Biology 2023 chapter-wise weightage, along with the marks distribution as per the type and difficulty level given by MSBSHSE has been provided here.
Maharashtra 12th Biology 2022-23 Chapter-Wise Weightage

Maharashtra HSC Biology Weightage 2023: The entire syllabus of Maharashtra board biology subject is divided into 5 units and 15 chapters. The question paper will be set such that the weightage with options will account for 98 marks while the mandatory weightage is 70 marks. The rest of the 30 marks are for practical examinations. These marks are distributed chapter-wise, not equally but as per the importance of the respective chapter. Knowing Maharashtra board HSC weightage 2023 for Biology will thus help the candidates prepare better for their board examination. Here, the weightage distribution as per the difficulty level and the typology of questions is also given.

Also Read | Maharashtra SSC, HSC Final Time Table 2023 (Out)

Maharashtra 12th Biology Chapter-Wise Weightage 2023

The unit-wise and chapter-wise weightage distribution for Maharashtra HSC 2023 Biology paper is as follows:

Unit/Chapter Number

Unit/Chapter Name

Weightage Distribution (without options)

Weightage Distribution (with options)

Unit 1


12 marks

16 marks


Reproduction in Lower and Higher Plants

6 marks

8 marks


Reproduction in Lower and Higher Animals

6 marks

8 marks

Unit 2

Genetics and Evolution

12 marks

18 marks


Inheritance and Variation

4 marks

6 marks


Molecular Basis of Inheritance

4 marks

6 marks


Origin and Evolution of Life

4 marks

6 marks

Unit 3


25 marks

35 marks


Plant Water Relation

5 marks

7 marks


Plant Growth and Mineral Nutrition

5 marks

7 marks


Respiration and Circulation

7 marks

10 marks


Control and Co-ordination

8 marks

11 marks

Unit 4

Applied Biology

12 marks

17 marks


Human Health and Diseases

3 marks

4 marks


Enhancement of Food Production

4 marks

6 marks



5 marks

7 marks

Unit 5

Ecology and Environment

9 marks

12 marks


Organisms and Populations

3 marks

4 marks


Ecosystems and Energy Flow

3 marks

4 marks


Biodiversity, Conversion, and Environmental Issues

3 marks

4 marks


70 marks

98 marks

Also Read |

Maharashtra HSC Question Bank PDF 2023
Maharashtra HSC Mathematics Weightage 2023
Maharashtra HSC Chemistry Weightage 2023
Maharashtra HSC Physics Weightage 2023
Maharashtra HSC Paper Pattern 2023 for Maths
Maharashtra HSC Paper Pattern 2023 for Physics
Maharashtra HSC Paper Pattern 2023 for Chemistry

Maharashtra 12th Biology Weightage 2023: Typology and Difficulty Level of Questions

1. Typology of Questions

The weightage distribution of the question paper has been further divided based on the sort of questions to be asked:

Type of Question

Weightage Distribution (with options)


30% or 29 marks


42% or 41 marks


28% or 28 marks

2. Based on Difficulty Level

To effectively prepare, the expected level of difficulty must be understood. The difficulty level of the Maharashtra HSC Biology 2023 paper is:

Difficulty Level

Weightage Distribution (with options)


30% or 29 marks


50% or 49 marks


20% or 20 marks

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