NEET Biology is essentially an indispensable section as it is one of the most scoring subjects if the students plan their preparations wisely. The questions from biology are so comprehensive that a well-prepared student clears this section of NEET almost effortlessly.
NEET Biology section plays an important role in determining the success of students in NEET exam, however, this doesn’t mean that the students neglect the other two subjects. To grab a seat in a top medical or dental college, students are advised to polish their skills in Biology as well as Physics and Chemistry. The difficulty level of Biology has increased over recent years. As per the overall analysis of NEET 2019, it was deemed that the exam fared average on the difficulty meter where amongst all other sections, Biology was considered to be the easiest, followed by Chemistry and then Physics which was the toughest and challenging section demanding time.
When it comes to NEET Biology, the botany section was comparatively challenging. Most of the questions in botany were based on NCERT. Zoology, on the other hand, fared moderately on the difficulty meter. Most numbers of questions appeared from Human Physiology unit.
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Given below are some of the important key points about the two crucial parts of Biology, namely, Zoology and Botany.
Important Notes of Biology For NEET 2021
| Euplectella | Spongilla |
| Cliona | Spindle Fibres |
| Somatic Cells | Leptotene |
| Zygotene | Pachytene |
| Diplotene | Diakinesis |
| Lipase Enzyme | Protease Enzyme |
| What are Greenhouse Gases? | What is Plankton |
| What is Nutrient Cycling | Net Primary Productivity |
| Floral Formula | Sycon |
| Organic Evolution | Floral Formula Of Hibiscus |
| Enzyme Names | Plasma Membrane Structure |
| AMH Hormone | Hardy Weinberg Law |
| Gonadotropin Releasing Hormone | Facts About Global Warming and Greenhouse Effect |
| Catalase Enzyme | Facts About Enzymes |
| Assisted Reproductive Technology | Growth Hormone Deficiency |
| Organisms and Populations | Microevolution |
| Human Reproduction | Breathing and Exchange of Gases |
| Reproduction in Organisms | Reproductive Health |
| Plant Growth And Development | Plant Kingdom |
| Microbes in Human Welfare | Environmental Issues |
| Strategies for Enhancement in Food Production | Digestion and Absorption |
| Body Fluids and Circulation | Biomolecules |
| Principles Of Inheritance And Variation | Biological Classification |
| Living World | Anatomy of Flowering Plants |
| Human Health and Disease | Animal Kingdom |
| Application of Biotechnology | Chromosome Structure |
| Plant Taxonomy | Shapes of Bacteria |
| Adaptive Radiation | Morphology Of Flowering Plants |
| Molecular Basis Of Inheritance | Bones of Spine |
| Humification | Mineralisation |
| Carbon Fixation | Important Notes of Biology For NEET Locomotion and Movement |
| Photosynthetically Active Radiation | Importance of Spermatogenesis |
| Pyramid of Biomass Example | Cell Differentiation |
| Nodule Formation | Food Vacuole |
| Gas Vacuole | Which Organism is Known As Drosophila of Plant Kingdom |
| Significance of Glycolysis | Modifications of Stem |
| Diplontic Life Cycle | Opioid Drugs |
| Genetically Engineered Insulin | What is Transduction in Bacteria |
| Heterotrophic Bacteria | Autotrophic Bacteria |
| DNA Polymerases | Telomeres |
| What is Haemoglobin | Medulla Oblongata |
| Function of Pons | Thalamus Function |
| Equisetum | Salvinia |
| What Are Gametes | Pteris |
| Chondrichthyes | Chondrocytes |
| Squamous Epithelial Cells | Lymphocytes |
| Sensory Receptors | Pectoral Girdle |
| Pelvic Girdle | Marchantia |
NEET Biology Important Topics – Botany
| Protozoa | Allosteric Enzyme |
| Ketogenesis | Plasmid |
| Ecology and Environment | Euglena Structure and Classification |
| Polygenic Inheritance | Deuterostomes |
| Coelom | Cell Biology and Division |
| Ecology | Biomolecule |
| Dinoflagellates | Epiphytes |
| Volvox | Penicillium |
| Spirogyra | Connective Tissue |
| Epithelial Tissue | Auxin |
| Rhizopus | Endosperm |
| Structure of Ear | Nucleotide |
| Slime Moulds | Paramecium |
| Nostoc | Chromoplast |
| Ascomycetes | Floral Formula of Solanaceae |
| Floral Formula of Liliaceae | Floral Formula of Fabaceae |
| Brown Algae | Bacteriophage |
| Lactational Amenorrhea | pH Of Blood |
| Where Does The Oxygen Liberated During Photosynthesis Come From |
Important Concepts of Biology for NEET 2021
| Fimbriae and Pili | Non Vascular Plants |
| Thyroid Symptoms | Algae Bloom |
| Neural Communication | Tetany Causes |
| Multinodular Goitre | Plant Hormones |
| Thyroid Problems | Types of Fermentation |
| Genetic Diversity | Electrocardiogram |
| Polyarteritis Nodosa | Hydroponic System |
| Biochemical Pathways | Uricotelism Definition |
| Blue Green Algae | Krebs Cycle |
| Pyruvate | Biosynthesis |
| Pharynx Location | Log Phase |
| Lag Phase | Trophozoites |
| Sporozoite | Human Food Chain |
| Double Helix Structure of DNA | Bacterial Transformation |
| Urogenital System of A Frog | Constitutive Transcription |
| Digestive System of Balanoglossus | Granulocytes |
| CD4 Cells | Synopsis on Tissues |
| DNA Ligase | Neuron Physiology |
| Importance of Cell Division | Bacterial Viruses |
| What is Epistasis | Lethal Genes |
| Dryopteris | Vas Deferens Function |
| Fimbriae Function | Nondisjunction |
| RNA Splicing | Human Eye Lens |
| T Lymphocytes |
NEET Concept Questions
| What is Holoenzyme? | What is The Function of Iris?</a |
| What are The Three Primary Layers of Retina? | Where is Optic Nerve Located? |
| What are Erythrocytes? | What is Apoenzyme? |
| What are Vascular Plants? | When does DNA Copying occur? |
| How do Annelids Feed? | How do Plants Reduce Water Loss? |
| How do Cells Produce New Cells? | How does Interphase prepare a cell to divide? |
| What Is Dwarfism? | What is Bioprocessing? |
| What is Cretinism? | What is Ecori |
| What is Collagen | What does QRS Complex Represent In ECG |
| What are Floating Ribs | What is Acromion |
| Where is Scapula Bone Located | Where is The Glenoid Cavity Located |
| What is The Function Of Cochlea | What is The Function Of Eustachian Tube |
| What is Stroma? | What is Spermatid? |
| What is Fallopian Tube? | What is The Blind Spot in Eye? |
| What is The Function of Cornea? | What is The Function of Pupil? |
| What is The Sclera of Eye? | What is The Function of Epididymis? |
| What is The Function of Stroma Lamellae? | What is The Function of Thylakoid? |
Short Notes on NEET Biology
| Short Notes on Trna Structure | Short Notes on Aneuploidy |
| Short Notes on Hindbrain | Short Notes on Cam Plants |
| Short Notes on Synapse | Short Notes on Metaphase |
| Short Notes on Glycolate Pathway | Short Notes on Aschelminthes |
| Short Notes on Disorders of Bones | Short Notes on Disorders of Joints |
| Short Notes on Disorders of Muscular System |
NEET Biology – Weightage of various topics is as follows:
| Class XI | ||
| Unit | Chapters | Weightage (approximate) |
| I | Diversity of Living Organisms | 12% |
| II | Structural Organisation in Plants & Animals | 9% |
| III | Cell: Structure and Function | 8% |
| IV | Plant Physiology | 8% |
| V | Human Physiology | 16% |
| Class XII | ||
| Unit | Chapters | Weightage |
| VI | Reproduction | 11% |
| VII | Genetics and Evolution | 13% |
| VIII | Biology and Human Welfare | 9% |
| IX | Biotechnology and its Applications | 4% |
| X | Ecology and Environment | 10% |
Zoology Section
Zoology is all about the interaction of animals with the ecosystem. It is the most interesting stream of Biology and deals with the study of the Animal Kingdom and their structures, evolution, embryology, habits, classification, and distribution of both living and extinct animals. Students are advised to focus more on topics like Reproduction and Human Physiology while preparing for the exam. Given below is a list of topics, important from the examination point of view:
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NEET Biology Important Topics – Zoology |
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| Animal Diversity | Animal Husbandry | Human Health and Diseases |
| Evolution | Animal Tissue | Cockroach |
| Human Physiology | Human Reproduction | |
NEET 2020 Analysis: Zoology section
| Class | Chapter name | Level of Difficulty | ||
| Easy | Average | Challenging | ||
| Class 11 | Human Physiology | 1 | 7 | 4 |
| Biomolecules | 3 | 2 | 1 | |
| Animal Kingdom | 2 | 2 | 1 | |
| Structural organization of animals | 1 | 0 | 1 | |
| Class 12 | Animal husbandry and Biotechnology | 3 | 4 | 3 |
| Human Reproduction and reproductive health | 0 | 2 | 2 | |
| Evolutions theories and evidences | 3 | 0 | 1 | |
| Human Health and diseases | 0 | 3 | 1 | |
| Total Questions | 47 | |||
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Botany Section
Botany (also known as Phytology) is the Science of Plant Life. It also includes the Study of Fungi and Algae. Modern Botany deals with plant structure, differentiation, growth, biochemistry, reproduction, primary metabolism, disease and plant taxonomy. Students are advised to focus more on topics carrying high weightage like Genetics, Biotechnology, and Ecology while preparing for the exam. In NEET exam, there are typically 45 questions from Botany.
NEET 2020 Analysis: Botany section
| Class | Chapter name | Level of Difficulty | ||
| Easy | Average | Challenging | ||
| Class 11 | Plant Physiology | 3 | 2 | 4 |
| Cell and cell cycle | 1 | 1 | 4 | |
| Structural organization of plants | 3 | 0 | 2 | |
| Diversity of Life | 1 | 3 | 1 | |
| Class 12 | Genetics | 2 | 1 | 4 |
| Ecology | 2 | 2 | 3 | |
| Biology in Human welfare | 0 | 1 | 1 | |
| Reproduction and sexual reproduction | 1 | 1 | 0 | |
| Total Questions | 43 | |||
Books play a vital role during the exam preparations. The table given below depicts a list of recommended books for NEET Biology apart from NCERT textbook.
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NEET Biology Books |
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| S. Chand’s Biology | Trueman’s Elementary Biology |
| Modern’s ABC Biology | Pradeep’s A Text Book of Biology |
| Together with Biology | Truman’s Objective Biology |
Stay tuned with BYJU’S to know more about each and every topic included in NEET syllabus 2021, preparation tips, previous years question papers, NEET Biology questions, sample papers, study materials, and more.
Frequently Asked Questions on NEET Biology 2021
Which book is best for NEET biology?
Is NCERT enough for NEET biology 2021?
How many chapters in biology for NEET?
How many questions in NEET biology are from NCERT?
| NEET Related Links | |
| NEET Chemistry | All India NEET Counselling |
| NEET 2016 Question Paper | NEET Crash Course |
| NEET Botany MCQ | NEET Study Material |
| Topics for NEET UG | NEET 2020 Exam Date |
| NEET Hall Ticket | NEET Results Date |