NEET 2024 Biology Chapter Wise Weightage

Unit and Topic

Number of Questions

Weightage of Questions

Botany

50

100%

Cell Biology – Introduction, Prokaryotic Cell

5

10%

Ecology-Biodiversity and preservation – preface, Level of biodiversity, Pattern of biodiversity, Loss of biodiversity

2

4%

Plant Kingdom-Algae

2

4%

Genetics 1 – preface, Mendelism, Monohybrid Cross, Dihybrid Cross, Back Cross, Test Cross, Incomplete Dominance, Codominance,  various  Alleflism, Pleiotropy

3

6%

Sexual Reproduction in angiosperms – Sexual Reproduction preface

4

8%

Ecology-Ecosystem – Introduction, Biotic components of ecosystem

2

4%

Anatomy of angiosperms – Plant Tissues, Tissue System

3

6%

Application Biology (Biotechnology) – Principles of Biotechnology

4

8%

Morphology of Flowering Plants – Root

3

6%

Plant Physiology-II-Plant growth and Growth Hormones – Growth and improvement

3

6%

Plant Physiology-II-Photosynthesis In Higher Plants – preface (Early experiments), site of photosynthesis and photosynthetic pigments

4

8%

Ecology-Environmental challenges – Kind of pollutants, Kind of pollution-Air pollution, Noise pollution, Acid rain, Ozone reduction, Water pollution

1

2%

Genetics – Nucleic Acids (The Generic Material, RNA and DNA)

4

8%

Mineral Nutrition – Plant Physiology -Methods to study mineral requirements of plants, Essential mineral elements, Role of macro and micronutrients, deficiency symptoms of essential elements, Toxicity of micronutrients

2

4%

Transport in plants -Transport in plants – Diffusion, Facilitated diffusion, osmosis, Active transport, DPD, Water potential plasmolysis, imbibition

3

6%

Biomolecule – I – Carbohydrates

1

2%

Responses of Organisms to Abiotic Factors

2

4%

Respiration in plants Plant Physiology – Introduction, Glycolysis and Fermentation

1

2%

Nucleic Acids  Biomolecule-II

1

2%

Zoology

50

100%

Cell Biology Introduction, Prokaryotic Cell-

4

8%

Genetics I – Introduction, Mendelism, Monohybrid Cross, Incomplete Dominance, Multiple Alleflism, Pleiotropy Codominance, Dihybrid Cross, Back Cross, Test Cross.

2

4%

Principles of Biotechnology  Principles of Biotechnology Application Biology  

2

4%

ENVIRONMENTAL POLLUTION CAUSES, EFFECTS AND CONTROL MEASURES

1

2%

Genetic Material- DNA and RNA

3

6%

 Introduction, Abiotic factors, Responses to Abiotic factors- Ecology-Organisms and Population

2

4%

Biomolecule-II – Nucleic Acids

1

2%

 heart and conduction- Body fluids and circulation

3

6%

Animal Kingdom-1 – Porifera

4

8%

Human Reproduction system: structure & function – Male Reproductive System

6

12%

Excretion and Osmoregulation

1

2%

Nervous Tissue -Neural Control and Coordination

2

4%

Nutrition -Digestion and Absorption

2

4%

Connective tissue Structural organization in animals

1

2%

Muscles -Locomotion and Movement

2

4%

Biology In Human Welfare-Human Health and Disease – Diseases caused by a virus

3

6%

 Exchange and transport of Gases in lungs – Respiratory Organ

1

2%

Origin of Life -Origin and Evolution  

2

4%

Endocrine Gland -Chemical Coordination and Integration

3

6%

Biology In Human Welfare – Microorganisms in Human Welfare

1

2%

Structural Organisation in Animal – Epithelial tissue

1

2%

Animal Kingdom-2 – Chordata

2

4%

Strategies for Enhancement of Food Production in Animal – Biology In Human Welfare      

1

2%