NEET 2024 Biology Topic-Wise Weightage & List of Important Topics

1

Structural organization – Plants and Animals

Genetics and Evolution

2

Cell Structure and Function

Biology and Human welfare

3

Diversity in the Living World

Reproduction

4

Human physiology

Ecology and environment

5

Plant Physiology

Biotechnology and its applications

Units

Chapters

No. of Questions Asked (Tentative)

Diversity in Living Organisms

• Biological Classification

• The Living World

• Animal Kingdom

• Plant Kingdom

10

Structural Organizations in Plants and Animals

• Anatomy of Flowering Plants

• Morphology of Flowering Plants

• Structural Organization in Animals

5

Cell: Structure and Function

• Biomolecules

• Cell Cycle and Cell Division

• Cell - The Unit of Life

7

Plant Physiology

• Photosynthesis in Higher Plants

• Mineral Nutrition

• Respiration in Plants

• Transport in Plants

• Plant - Growth and Development

8

Human Physiology

• Locomotion and Movement

• Breathing and Exchange of Gases

• Excretory Products and Their Elimination

• Body Fluids and Circulation

• Chemical Coordination and Integration

• Digestion and Absorption

13

Units

Chapters

No. of Questions Asked (Tentative)

Reproduction

• Reproductive Health

• Human Reproduction

• Reproduction in Organisms

• Sexual Reproduction in Flowering Plants

10

Genetics and Evolution

• Evolution

• Principles of Inheritance and Variation

• Molecular Basis of Inheritance

18

Biology in Human Welfare

• Microbes in Human Welfare

• Human Health and Disease

4

Biotechnology and Its Applications

• Biotechnology and Its Applications

• Biotechnology - Principles & Processes

7

Ecology and Environment

• Ecosystem

• Biodiversity and Its Conservation

• Organisms and Population

• Environmental Issues

10

Class XI

Diversity in Living Organisms

14%

Structural Organizations in Plants and Animals

5%

Cell: Structure and Function

9%

Plant Physiology

6%

Human Physiology

20%

Class XII

Reproduction

9%

Genetics and Evolution

18%

Biology in Human Welfare

9%

Biotechnology and Its Applications

4%

Ecology and Environment

6%

Topics

Weightage Percentage

Plant Diversity

12%

Plant Anatomy

4%

Plant Morphology

7%

Cell Biology and Cell Division

10%

Bio-Molecule

3%

Plant Physiology

13%

Plant Reproduction

9%

Genetics and Biotechnology

24%

Biology in Human Welfare

2%

Ecology

16%

Topics

Weightage Percentage

Animal Diversity

10%

Animal Tissue

3%

Structural Organization in Animals

2%

Human Physiology

45%

Human Reproduction and Reproductive Health

18%

Origin and Evolution

10%

Animal Husbandry

3%

Human Health and Diseases

9%

The Living World

• What is the correct representation of organization levels in living beings?

• What is the first step of taxonomy?

Biological Classification

• What is the sequence of taxonomic categories?

• What do you mean by Biological Classification?

Plant Kingdom

• Why does Funaira require water?

• What do you mean by Phenetics?

Animal Kingdom

• Name the two animals that have non-glandular skin.

• Name the common feature shared by birds and mammals.

Morphology of Flowering Plants

• What are adventitious roots?

• Where does the placenta attach to develop the seed?

Anatomy of Flowering Plants

• Why is grafting not possible in monocots?

• What is the responsibility of the pericycle in roots?

Structural Organization of Animals

• Which system is associated with pseudostratified ciliated columnar epithelium?

• Who secretes the non-cellular basement membrane of epithelial cells?

The Unit of Life

• Who proposed the fluid mosaic model of the plasma membrane?

• Give an example of the dye not used for staining chromosomes?

Biomolecules

• What is the most plentiful component of a cell in a living organism?

• What does glycogen make up?

Cell Cycle and Cell Division

• Where does pairing between homologous chromosomes take place?

• Where does the nuclear membrane disappear?

Transport in Plants

• What is the use of a Potometer?

• What happens when potassium ions enter the guard cells?

Mineral Nutrition

• What is Hydroponics?

• Which bacteria converts ammonia into nitrite?

Photosynthesis in Higher Plants

• What is the correct sequence of stages of the Clavin cycle?

• How many molecules of ATP and NADPH₂ are required to form a glucose molecule in plants?

Respiration in Plants

• Why does Phosphorus play an important role in the energy metabolism process?

• Why does R. Q. get highest when the respiratory substance is maleic acid?

Plant Growth and Development

• Why is abscisic acid known as a stress hormone?

• What is differentiation?

Digestion and Absorption

• How many monophyodont teeth are there in human beings?

• Why do you lose hunger in a fever?

Breathing and Exchange of Gases

• Why is CO more toxic than CO₂?

• What is the correct sequence of the air passage in a man?

Body Fluids and Circulation

• Who performed the first heart transplant?

• What is Pericardium?

Excretory Products and Their Elimination

• Which part of the nephron is also called Renal Corpuscle?

• Where does Aldosterone act?

Locomotion and Movement

• What is Rigour Mortis?

• What is muscular dystrophy?

Neural Control and Coordination

• Who controls the function of visceral organs?

• How does the potential of the resting membrane maintain?

Chemical Coordination and Integration

• Name the group of hormones produced by Leydig cells.

• What is thymosin responsible for?

Reproduction in Organisms

• Why are dogs called seasonal breeders?

• Match the Following Questions

Sexual Reproduction in Flowering Plants

• What is a haploid plant?

• What is the meaning of siphonogamy in angiosperm?

Human Reproduction

• Name the sections in which the man’s epididymis from the anterior to posterior is divided?

• The ampulla is the part of which reproductive system?

Reproductive Health

• where does semen collect in the artificial insemination technique?

• What is the most dangerous sexually transmitted disease?

Principle of Inheritance and Variation

• What will be the cross result between a homozygous female and a haemophiliac male?

• Why can’t males be the carriers of colour blindness?

Molecular Basis of Inheritance

• Which enzyme is known as the ‘chemical knife of DNA?’

• How many base pairs of nucleotides are present in the human genome?

Evolution

• What is the sequence of origin of life according to the chemical evolution theory?

• Why do most biologists think RNA was the first genetic material?

Human Health and Disease

• What is the definition of ‘health’ according to WHO?

• What is the WHO Oral Rehydration Solution (ORS) composition?

Strategies for Enhancement in Food Production

• What is the name given to the somatic hybridisation between potato and tomato?

• Which infectious bacterial diseases affect cattle?

Microbes in Human Welfare

• What is the Batch Process?

• Which antibiotic was extensively used to treat American soldiers wounded in World War II?

Biotechnology: Principles and Processes

• What is Recon?

• Why are DNA ligases called genetic gum?

Biotechnology and its Applications

• Does organic farming involve genetic engineering?

• What is Pathophysiology?

Organisms and Populations

• How does Peroxyacetyl Nitrate form?

• What is the reason for the increase in global temperature?

Ecosystem

• If all the world’s plants die, all the animals will also die – explain why.

• What is net primary productivity (NPP)?

Biodiversity and Conservation

• What is the threat to wildlife?

• What do you mean by eroded soil?

Environmental Issues

• What was the main cause of the Bhopal Gas Tragedy?

• When did the wildlife protection act pass?

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Objective Botany by Ansari

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