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NEET Bio questions are most searched by students who are preparing for the NEET entrance exam. As per the exam pattern, this section carries the highest weightage in the NEET question paper. This page of Shiksha.com brings the NEET Biology Questions PDF download, along with the topic-wise questions and solutions. The NEET Biology section is segregated into two areas, Botany and Zoology. Both these areas carry equal weightage in the NEET exam paper.
According to the NEET question paper structure, the questions are asked in Multiple-choice questions (MCQs). Students looking for Biology MCQs for NEET must check the topic-wise questions and answer keys or solutions to complete their preparation.
Q: What is the total number of Biology questions in NEET?
There are a total of 100 questions in the Biology section of NEET. However, candidates will have to attempt 90 questions. The NEET Biology section is divided into two sections, Botany and Zoology. Each of these areas, Botany and Zoology are further divided into Section A and Section B. The Section A carries 35 questions and Section B carries 15 questions and candidates can attempt 10 questions out of 15 questions.
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Q: What is the total marks of the NEET Biology section?
The total marks of the NEET Biology section is 360. As per the marking scheme of the NEET exam, each correct question carries four marks and there is a negative marking of one mark for each wrong answer. Since the total number of questions to be attempted in the NEET Biology section is 90, the total marks is 360. The section-wise marking scheme of the NEET Biology section is given in the table below.
Sections | Total Marks |
Botany Section A | 140 |
Botany Section B | 40 |
Zoology Section A | 140 |
Zoology Section B | 40 |
Upvote Q: What is the total duration required to solve the NEET Biology section?
The total duration of the NEET exam is three hours and 20 minutes. Although there is no sectional time limit for NEET, to complete each section, a candidate gets an hour on an average. However, since the Biology section includes Botany and Zoology and the weightage is higher than the other two sections, candidates may decide to allot more time to the Biology section of NEET. While attempting the paper, candidates must ensure that they put equal weightage on all sections and their performance is not skewed. Apart from that, they should also keep at least 15 minutes time for revision to avoid any unnecessary mistake.
Upvote NEET Biology MCQs
Q: Which hormone promotes internode/petiole elongation in deep water rice? (1) Kinetin (2) Ethylene (3) 2, 4-D (4) GA3
A: The correct answer is Option 2 or Ethylene. Ethylene promotes rapid internode/petiole elongation in deep water rice plants.
Q: Which of the following plants is monoecious? (1) Carica papaya (2) Chara (3) Marchantia polymorpha (4) Cycas circinalis
A: The correct answer is Option 2 or Chara.
Monoecious refers to plants that bear unisexual reproductive organs or separate staminate or carpellate flowers on the same plant. Chara is a monoecious entity as both male and female reproductive structures are in the same plant.
Q: Which of the following stages of meiosis involves division of centromere? (1) Anaphase II (2) Telophase (3) Metaphase I (4) Metaphase II
A: The correct answer is Option (1) Anaphase II.
Splitting of centromere occurs during anaphase of mitosis or anaphase II of meiosis. During Metaphase I and II, chromosomes align at the equator. During telophase, chromosomes reach the respective poles.
NEET Biology Questions Papers PDF Download
The following table brings the year-wise NEET Biology question papers with solutions.
| Year |
NEET Biology Question Paper and Solutions PDF |
|---|---|
| 2023 |
|
| 2022 |
|
| 2021 |
|
| 2020 |
Also Read: NEET Biology Question Papers
NEET Biology Pattern and Syllabus
The following table brings the exam pattern and structure for the Biology MCQ for NEET:
| Sections |
Number of Questions |
Total Marks |
|---|---|---|
| Botany Section A |
35 |
140 |
| Botany Section B |
15 |
40 |
| Zoology Section A |
35 |
140 |
| Zoology Section B |
15 |
40 |
Each of the correct questions carries four marks and there is a negative marking of one mark for each correct answer.
Also Read:
FAQs Regarding NEET Biology Questions
This section brings the frequently asked questions (FAQs) regarding NEET Biology questions.
Q: Has there been any change in the syllabus of NEET 2025?
No, there has not been any change in the NEET 2025 syllabus. Last year, the NEET syllabus underwent major changes as per the recommendation by the National Medical Commission (NMC). A number of chapters and topics were removed from Physics, Chemistry and Biology subjects. On the other hand, certain topics and chapters were added and some of the topics were modified. Since such major changes were brought in to last year's NEET syllabus, the NEET 2025 syllabus is unchanged.
NEET syllabus 2025 has been released officially by NMC in December 2024. Hence, students preparing for NEET 2025 should start preparing, or continue their preparation based on last year's NEET syllabus. Even if some changes are introduced to the NEET 2025 syllabus, those would not be something major.
Upvote Q: What is the difficulty level of the NEET Biology section?
According to the previous years' analysis of NEET exam, the difficulty level of the Biology section is considered as easy to moderate. Even though the Biology section carries the highest weightage, the difficulty level is not that high. According to experts of top coaching institutes, the questions were NCERT-based. There were some analytical questions as well, which were tough. It is expected that the similar difficulty level will be maintained for NEET 2024 as well.
Upvote Q: Which topics were removed from the Biology subject of the NEET 2024 syllabus?
The National Medical Commission (NMC) had revised the NEET 2024 syllabus. As compared to the previous years' syllabus, some of the topics were removed from each of the three subjects, Physics, Chemistry and Biology. In the Biology subject, chapters have been removed in around six units. The following table brings the list of chapters and topics along with the units, which were removed in the NEET 2024 syllabus.
Units | Chapters/Topics |
|---|---|
Structural Organisation in Animals and Plants | Animal tissues; Morphology, anatomy and functions of different systems (digestive, circulatory, respiratory, nervous and reproductive) of an insect (Frog). (Brief account only) |
Plant Physiology | · Transport in plants: Movement of water, gases and nutrients; Cell to cell transport-Diffusion, facilitated diffusion, active transport; Plant – water relations – Imbibition, water potential, osmosis, plasmolysis; Long distance transport of water – Absorption, apoplast, symplast, transpiration pull, root pressure and guttation; Transpiration-Opening and closing of stomata; Uptake and translocation of mineral nutrients-Transport of food, phloem transport, Mass flow hypothesis; Diffusion of gases (brief mention). · Mineral nutrition: Essential minerals, macro and micronutrients and their role; Deficiency symptoms; Mineral toxicity; Elementary idea of Hydroponics as a method to study mineral nutrition; Nitrogen metabolism-Nitrogen cycle, biological nitrogen fixation. |
Human Physiology | Digestion and absorption; Alimentary canal and digestive glands; Role of digestive enzymes and gastrointestinal hormones; Peristalsis, digestion, absorption and assimilation of proteins, carbohydrates and fats; Caloric value of proteins, carbohydrates and fats; Egestion; Nutritional and digestive disorders – PEM, indigestion, constipation, vomiting, jaundice, diarrhoea. |
Reproduction | Reproduction in organisms: Reproduction, a characteristic feature of all organisms for continuation of species; Modes of reproduction – Asexual and sexual; Asexual reproduction; Modes-Binary fission, sporulation, budding, gemmule, fragmentation; vegetative propagation in plants. |
Biology and Human Welfare | Improvement in food production; Plant breeding, tissue culture, single cell protein, Biofortification; Apiculture and Animal husbandry. |
Ecology and Environment | Organisms and environment: Habitat and niche; Population and ecological adaptations Ecosystem Patterns: Nutrient cycling (carbon and phosphorous); Ecological succession; Ecological Services fixation, pollination, oxygen release. Biodiversity and its conservation: Sacred Groves. Environmental issues: Air pollution and its control; Water pollution and its control; Agrochemicals and their effects; Solid waste management; Radioactive waste management; Greenhouse effect and global warning; Ozone depletion; Deforestation; Any three case studies as success stories addressing environmental issues. |
Also Read: NEET Biology Syllabus with Chapter-wise Weightage
Upvote Q: Which chapters carry high weightage in NEET Biology section?
Some of the chapters of Biology, which are given a high weightage, are listed below:
- Animal Kingdom
- Molecular Basis of Inheritance
- Morphology of Floweing Plants
- Sexual Reproduction in Floweing Plants
- Principles of Inheritance and Variation
- Chemical Coordination and Integration
- Biomolecules
The table below brings the chapter-wise weightage of NEET Biology section.
Name of the chapter | Number of questions asked (Approx.) | Weightage in Per Cent |
|---|---|---|
Anatomy of Flowering Plants | 0-1 | 2 |
Animal Kingdom | 2 | 7 |
Biodiversity and Conservation | 1 | 3 |
Biological Classification | 0-1 | 2 |
Biomolecules | 1 | 4 |
Biotechnology and its Applications | 1 | 3 |
Biotechnology: Principles and Processes | 1 | 3 |
Body Fluids and Circulation | 0-1 | 1 |
Breathing and Exchange of Gases | 0-1 | 2 |
Cell Cycle and Cell Division | 0-1 | 2 |
Cell: The Unit of Life, Biomolecules | 0-1 | 2 |
Chemical Coordination and Integration | 1 | 4 |
Digestion and Absorption | 1 | 3 |
Ecosystem | 0-1 | 2 |
Environmental Issues | 0-1 | 2 |
Evolution | 0-1 | 2 |
Excretory Products and their Elimination | 0-1 | 2 |
Human Health and Disease | 1 | 3 |
Human Reproduction | 1 | 3 |
Locomotion and Movement | 0-1 | 2 |
Microbes in Human Welfare | 0-1 | 2 |
Mineral Nutrition | 0-1 | 1 |
Molecular Basis of Inheritance | 2 | 6 |
Morphology of Flowering Plants | 1 | 5 |
Neural Control and Coordination | 0-1 | 2 |
Organisms and Populations | 0-1 | 2 |
Photosynthesis in Higher Plants | 0-1 | 2 |
Plant Growth and Development | 0-1 | 1 |
Plant Kingdom | 1 | 4 |
Principles and Inheritance and Variation | 1 | 5 |
Reproduction in Organisms | 0-1 | 1 |
Reproductive Health | 0-1 | 2 |
Respiration in Plants | 0-1 | 1 |
Sexual Reproduction in Flowering Plants | 1 | 5 |
Strategies for Enhancement in Food Production | 0-1 | 2 |
Structural Organisation in Animals | 0-1 | 2 |
The Living World | 0-1 | 2 |
Transport in Plants | 0-1 | 1 |
Total | 90 | 100 |
Upvote Q: What is the Biology syllabus for NEET?
The Biology syllabus for NEET has undergone changes based on the recommendations by the National Medical Commission (NMC). Although earlier the NEET syllabus for Biology was categorised into Class 11 and Class 12 syllabus, it has now been merged. The units of the NEET 2024 Biology syllabus is given below.
Unit I: Diversity in Living World
Unit II: Structural Organisation in Animals and Plants
Unit III: Cell Structure and Function
Unit IV: Plant Physiology
Unit V: Human Physiology
Unit VI: Reproduction
Unit VII: Genetics and Evolution
Unit VIII: Biology and Human Welfare
Unit IX: Biotechnology and Its Applications
Unit X: Ecology and Environment
Upvote Q: Why are some topics added to the NEET 2024 syllabus but are not included in the NCERT books?
The National Testing Agency (NTA) has clarified the reason why some topics or chapters have been added to the NEET 2024 syllabus. "These topics have been added as these are being taught in various School Boards i.e. Maharashtra State Board of Secondary and Higher Secondary Education, Bihar School Education Board, National Institute of Open Schooling (NIOS), Jammu and Kashmir Board of School Education, Nagaland Board of School Education, Board of secondary education Manipur, " stated NTA.
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