NEET 2025 Biology Topic-Wise Weightage & List of Important Topics

Updated On: January 20, 2025 04:22 PM | NEET

NEET 2025 Biology Topic-Wise Weightage & List of Important Topics will aid students in scoring good marks in the section. As per the NEET 2024 Biology Topic-Wise Weightage Human Physiology, and Genetics and Evolution are the most important chapters for the upcoming NEET exam.

Table of Contents

NEET 2025 Biology Chapter Wise Weightage Syllabus
How to Find Out NEET 2025 Biology Important Topics?
List of NEET 2025 Biology Important Topics
NEET 2025 Biology Chapter-wise Weightage
NEET Biology 2025 Chapter-wise Weightage (All Topics)
NEET 2025 Biology Chapter-wise Important Questions (Expected)
Best Books Recommended for NEET 2025 Biology Important Topics
How to Study according to NEET 2025 Biology Chapter Wise …
Quick Tips for NEET 2025 Biology Chapter Wise Weightage Preparation
Faqs

NEET Biology Topic-Wise Weightage & List of Important Topics

NEET 2025 Biology Chapter Wise Weightage and Important Topics is created based on the previous year trends of the exam. As per the analysis, the NEET Biology Important Topics include Ecology and Environment, Biology in Human Welfare, Biotechnology and Its Applications, and Genetics and Evolution. As per the NEET 2025 Biology Chapter Wise Weightage, Human Physiology is considered to be the most important with a weightage of 20%. According to the previous years’ NEET paper analysis, the Biology section is considered to be the easiest section. However, several tricky questions are asked to confuse the students. Students must prepare the NEET Biology 2025 Chapter-wise Weightage with proper reference materials and NEET Sample Papers with Sample Papers and Answer Keys PDF to score good marks. Students will be able to identify the most important chapters with the help of the NEET Biology Topic-Wise Weightage.

NEET 2025 Exam is a national level entrance test that is conducted by National Testing Agency (NTA) on a national level. It is expected that the NEET UG 2025 Exam will be conducted on May 4, 2025. With a limited time left in hand, aspirants are suggested to prepare with the NEET 2025 Biology Topic-Wise Weightage to avoid any last minute confusion. As per the NEET Tie Breaking Criteria 2024 , the biology section plays an important role when it comes to the rank of the students. Aspirants unsure what to study, their preparation would be like a bowman shooting in the dark. That is why, it is important to refer to the Topic-Wise Weightage for NEET Biology to identify the chapters that students should focus more on. Read the article below to learn more about the NEET 2025 Biology Topic-wise Weightage, how to prepare, important chapters, and other latest updates.

NEET 2025 Biology Chapter Wise Weightage Syllabus

The important topics covered in the NEET 2025 Biology Chapter Wise Weightage Syllabus are mentioned below in the table for students to refer to. The following is curated by keeping in mind all the important chapters mentioned in the NEET UG 2025 Syllabus.

Units	Topics from Class 11th Curriculum	Topics from Class 12th Curriculum
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

Also Read: NEET 2025 Passing Marks

How to Find Out NEET 2025 Biology Important Topics?

Before delving further, one must know how to figure out which topics are important and need more attention. Here are some helpful tips that candidates may keep in mind while Preparing for NEET 2025 Biology . However, it must be noted that even though some topics carry higher weightage than others, preparing every topic included in the NEET 2025 Biology Syllabus is a requirement to Achieve 120+ Marks in NEET 2025 .

Topics that carry higher weightage in the NEET 2025 Question Paper than others can be considered important as preparing them well would help candidates score high.
Topics that are asked repetitively in the NEET 2025 Question Papers of Previous Years often have higher chances of being asked again. So, candidates may consider them important.
Depending on the content size, the question paper may have more questions from certain topics than others. Candidates should think of those topics as important and prepare accordingly.
Candidates must also consult with their teachers, tutors, mentors or seniors to know which topics need more attention.

Also Read: What is a Good Score in NEET 2025?

List of NEET 2025 Biology Important Topics

The table below includes the list of NEET 2025 Biology Important Topics section based on the factors mentioned above. Candidates may also check the tentative number of questions asked from these chapters.

NEET Class XI Biology Chapters
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

NEET Class XII Biology Chapters
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

Also Read: NEET 2023 Important Topics - All Subjects

NEET 2025 Biology Chapter-wise Weightage

Having an idea of the NEET Biology chapter wise weightage 2025 can help candidates determine the number of marks are allotted to particular topic, and how likely it is to appear in the exam paper. As mentioned, one can refer to NEET previous question papers to figure this out. For the convenience of all candidates, we have prepared a list of topics along with the weightage in the table below. Candidates can check out the weightage percentage for the important topics mentioned above from Class 11 and 12:

NEET Biology Important Units/ Chapters	Weightage Percentage
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%

Also Read: NEET 2025 Marks Vs Rank

NEET Biology 2025 Chapter-wise Weightage (All Topics)

Below is the weightage percentage for all the topics included in NEET Botany and Zoology syllabus.

Important Topics from Botany
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%

Important Topics from Zoology
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%

NEET 2025 Biology Chapter-wise Important Questions (Expected)

For students who are wondering what would be the types of questions asked in NEET 2025 paper, or whether the questions will be based on the syllabus, we have a list of probable questions that may help them score well in the actual examination. Checkout the table below to know about the chapter-wise important questions for NEET 2025 Biology:

Chapters	Important Questions for NEET 2025 Biology
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?

Candidates must note that the questions listed above are only tentative based on the previous trends. These do not resemble the actual questions in the NTA NEET 2023 paper.

Best Books Recommended for NEET 2025 Biology Important Topics

To excel in NEET 2025 Biology, make sure you refer to these books recommended by toppers and experts for conceptual clarity and MCQ practice sessions:

NCERT Biology Class XI and Class XII textbooks	GR Bathla publications for Biology	Biology Vol 1 and Vol 2 by Trueman
Objective Biology by Dinesh	Objective Botany by Ansari	Pradeep Guide on Biology

How to Study according to NEET 2025 Biology Chapter Wise Weightage?

Here are some tips to study according to the NEET 2025 Biology topic-wise weightage:

Identify high-weightage topics: The first step is to identify the high-weightage topics and allocate more time to studying those topics. This will help you cover the most important topics in the limited time available and improve your chances of scoring well in the exam.
Create a study plan: Once you've identified the high-weightage topics, create a study plan that prioritizes those topics. Allocate more time to studying those topics and make sure you cover them thoroughly. Divide your study time equally among all the topics to ensure that you have a basic understanding of each topic.
Use study resources: Utilize study resources such as textbooks, notes, online resources, and video lectures that focus on high-weightage topics. This will help you gain a better understanding of the material and prepare more effectively.
Practice questions: Practice questions related to high-weightage topics. This will help you become more comfortable with the type of questions that are likely to appear on the exam, and it will also help you identify any areas where you need more practice.
Make notes: While studying, make notes of important points and concepts. This will help you revise quickly and effectively and will also help you retain the material better.
Revise regularly: Regular revision is crucial to ensure that you retain the material you've learned. Make sure you revise regularly to identify any areas where you need to spend more time studying.
Seek help when needed: Don't hesitate to seek help if you're struggling with a particular topic or concept. Reach out to your teachers, mentors, or online resources for guidance and support.

Quick Tips for NEET 2025 Biology Chapter Wise Weightage Preparation

Achieving a score above 300+ in NEET 2025 Biology requires a well-rounded study plan. Top scorers and experts highly recommend the following tips for effective NEET 2025 Biology preparation:

Understand the Syllabus and Exam Pattern: Begin by thoroughly understanding the NEET 2025 Biology syllabus and exam pattern to strategize your preparation.
Create a Comprehensive Study Plan: Develop a study plan that allocates sufficient time to cover each topic systematically.
Use Standard Textbooks and Study Materials: Utilize reputable Biology textbooks and study materials to comprehensively cover all relevant topics.
Take Regular Mock Tests: Assess your preparation by taking regular mock tests and practicing previous year's question papers to identify areas of weakness.
Focus on Revision: Regularly revise key topics, with special emphasis on crucial areas like human physiology, genetics, and ecology.
Utilize Effective Study Tools: Take notes and create flashcards to aid in the revision and memorization of important concepts.
Enroll in Coaching Classes or Online Courses: Seek expert guidance and support by attending coaching classes or opting for online courses.
Maintain Motivation and Manage Stress: Stay motivated by taking breaks and engaging in recreational activities to avoid stress.
Stay Updated with Current Events: Boost your knowledge by staying informed about current events related to Biology and healthcare.
Maintain a Positive Attitude: Believe in yourself and maintain a positive attitude throughout the preparation process.
Prioritize Overall Health: Alongside exam preparation, prioritize your overall health. Ensure you get ample rest and sufficient sleep in the weeks leading up to the entrance exam.

Following these tips, coupled with dedication and consistent effort, will enhance your chances of scoring well in NEET 2025 Biology.

To get more information on NEET preparation, stay tuned with CollegeDekho !

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FAQs

How many chapters are included in the NEET Biology section?

A total of 31 Biology chapters are included in the NEET Biology section. Students should prepare with the NEET 2025 Biology Chapter Wise Weightage to identify the important topics for the upcoming exam.

What are the important chapters as per the NEET 2025 Biology Chapter Wise Weightage analysis?

As per the analysis of the NEET 2025 Biology Chapter Wise Weightage Diversity in Living Organisms, Human Physiology, and Genetics and Evolution are the most important chapters for the NEET exam.

Which chapter has the highest weightage as per the NEET Biology 2025 Chapter-wise Weightage?

As per the analysis of the NEET Biology 2025 Chapter-wise Weightage, Human Physiology is the most important chapter with a weightage of 20%. It is expected that a total of 13 questions can be asked from this chapter.

What is the importance of NEET Biology Important Topics and Weightage?

Aspiring students must refer to the NEET Biology Important Topics and Weightage to take a better preparation for the exam. With the help of the NEET 2025 Biology Topic wise Weightage, students will be able to identify the important chapters and prepare those with more emphasis.

How many questions are asked from Genetics and Evolution in NEET Biology?

Based on the analysis of NEET previous question papers, approximately 16-18 questions are asked from Genetics and Evolution in NEET 2024 Biology. Students are, therefore, advised to go through them and prepare accordingly.

Will NEET 2025 Biology be tough?

The Biology section in NTA NEET is considered relatively easy and scoring in comparison to the Physics and Chemistry sections if one is prepared well. Going by the previous trends, the difficulty level of NEET 2025 Biology should be easy to moderate.

How can I increase my NEET 2025 Biology score?

To score exceedingly well in NEET 2025 Biology, candidates must get in the habit of solving previous years’ question papers to have a clear understanding of the question pattern, and focus on the important topics, chapters, and frequently asked questions.

How do you get 360 marks in NEET Biology?

NEET Biology paper has 90 questions of 4 marks each. So, to get 360 marks, aspirants need to get all 90 questions from the Zoology and Botany sections correct.

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Can I get the opportunity to learn in bakson homeopathy college for bhms course in poor Mark's at neet at a general quota

-Jyotidipa Roy Updated on February 06, 2025 11:48 PM

1 Answer

Ankita Sarkar, Content Team

Hello Jyotidipa,

To secure admission in the BHMS course at Bakson Homeopathic Medical College and Hospital, you must have passed the intermediate or 10+2 level with at least a 50% aggregate score from a recognised board. At the 10+2 level, you must have Physics, Biology, Chemistry and English as compulsory subjects. You must also have a valid NEET score. For the general category, a NEET mark of 715-117 is required for admission. However, it is advised that you wait for subsequent rounds after the release of the first merit list, as chances of admission are minimal but not impossible. …

I need the scorecard of NEET 2019

-sunilUpdated on February 11, 2025 12:36 PM

2 Answers

nihal shekhawat, Student / Alumni

you can get by filing writ petition for more details you can contact on 9928096483

There is a BSc. RTT course.. How is fees structure

-RashaUpdated on February 10, 2025 04:48 PM

1 Answer

Harleen Kaur, Content Team

Government Medical College in Kozhikode provides a Bachelor of Science (B.Sc.) in Radiotherapy Technology (RTT) as part of its Allied Health Sciences curriculum. The fees for the B.Sc. RTT course are as follows:

First Year: Rs 20,870.
Second Year: Rs. 21,870.
Third Year: Rs 21,870.
Fourth Year: Rs 18,870.

The entire fee for the four-year program is Rs 83,480.