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Biomolecules — NEET/JEE Questions, Notes & Weightage

Class 11 Cell Structure and Function NEET weightage: High 0 questions

Covers carbohydrates, proteins, lipids, nucleic acids, enzymes, and metabolism at the chemical level — primary/secondary/tertiary/quaternary protein structure and enzyme kinetics are recurring NEET themes. Conceptually denser than most chapters but consistently rewarding for direct questions.

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Topics inside Biomolecules

Biochemistry 359 Pathology 109 Physiology 105 Pharmacology 93 Medicine 86 Microbiology 73 All India exam 63 Endocrinology 60 Metabolism of carbohydrate 60 miscellaneous 53 Proteins and Amino Acids 52 Unknown 45 Metabolism of lipid 43 General anatomy 42 Metabolism of nucleic acids 42 Pediatrics 41 Social & Preventive Medicine 41 Gynaecology & Obstetrics 40 Surgery 39 Respiratory chain 36 General pathology 35 G.I.T 34 Structure and function of protein 34 Enzymes 33 Nutrition and Health 32 Immunology 31 Carbohydrates 29 Bacteria 24 Lipids 21 vitamins 20 Cardiovascular system 19 Metabolism of protein and amino acid 19 Molecular Genetics 18 Other topics and Adverse effects 17 Forensic Medicine 17 Miscellaneous (Bio-Chemistry) 17 General physiology 17 Cellular Pathology 16 Vitamins and Minerals 15 Chemotherapy 15 Ophthalmology 15 General 14 Cholesterol and Lipoproteins 12 Bacteriology 12 Pharmacokinetics 12 Dental 12 C.V.S 11 Respiratory System 10 Haematology 10 Urinary tract 10 C.N.S 10 New born infants 10 Pharmacotherapy in psychiatry 9 Inborn Errors of Metabolism 9 Amino Acids Basics 9 Kidneys and Body Fluids 9 Anaesthesia 8 Kidney 8 ENT 8 Nutrition 8 Non communicable diseases 7 Cell Membrane and transpo protiens 7 Chemistry of Carbohydrates, Amino sugars, and Mucopolysaccharides 7 Nutrition & Digestion 7 FMGE 2018 7 Miscellaneous (Structure & Function of Proteins) 7 Amino Acid Metabolism 7 Genetics 7 Endocrinology metabolism 6 nutrition and digestion 6 Fluid & Electrolyte 6 general microbiology 6 Misc. 6 Nervous system 6 Glycolysis 5 Molecular Biology Techniques 5 Hypolipidemic 5 NEET Jan 2020 5 Renal physiology 5 Systemic Bacteriology (Gram Positive Bacilli, Gram Negative Bacilli) 5 Autacoids 5 Mechanisms of Enzyme Action 5 DNB 2018 5 Classification and metabolism of amino acids 5 Classification of carbohydrate 5 ETC 5 Sex Hormones 5 Structure of DNA 5 Immunology Pa 1 (Immune Response, Antigen-Antibody Reactions, Hypersensitivity, Structure of Immune System, Immunodeficiency Disorders) 5 Transcription 5 Gastrointestinal tract 5 FMGE 2019 5 Disorders of Amino acid Metabolism 4 Lipid Oxidation and Synthesis 4 A.N.S. 4 General Pharmacology 4 Excretory System (Kidney, Bladder) Acid-Base Balance 4 Central Nervous system 4 Gluconeogenesis 4 Transport Across Cell Membrane 4 Techniques in molecular biology 4 Apoptosis 4 Communicable diseases 4 Basics of amino acids 4 Chemistry of Nucleotides 4 General anaesthesia 4 Enzyme Kinetics 4 Parasitology 4 Glycogen Metabolism and Glycogen Storage 4 Breast 4 Infection 4 Proteins, Fats, Rich Sources 4 Orthopaedics 4 Blood 4 Lipoproteins 4 Regulation of Gene Expression 4 Galactose and fructose metabolism 4 Proteins bonds and structure 4 Immune system 3 Renal Tubular Reabsorption and Secretion 3 NEET 2019 3 JIPMER 2019 3 Radiology 3 HMP Shunt Pathway, Fructose, Galactose Metabolism 3 Skin 3 Replication 3 Miscellaneous (Gynae) 3 Glaucoma 3 Endocrinology and Reproduction 3 Glomerular Diseases 3 Virology 3 obstetrics,pediatrics and geriatrics 3 Trauma 3 Anti-HIV Drugs 3 Wounds, Tissue Repair & Scars 3 D.O.C 3 Heart, Circulation, and Blood 3 Immunology and Rheumatology 3 Digestion and Absorption 3 Pancreas 3 Diabetes Mellitus 3 Cell Physiology and Intercellular Connections 3 Metabolism of Purines and Pyrimidines 3 JIPMER 2017 3 Autonomic nervous system 3 membrane structure and function 3 Chemistry of Lipids 3 Glycogen 3 Adrenal Gland 3 Urea Cycle and Disorders 3 General obstetrics 3 NEET 2018 3 Intravenous Anesthetic Agents 3 Fluid and electrolytes 3 Proteins 3 Bone Tumour 3 Drugs 3 Endocrine System 3 Pharmacodynamics 3 Cholesterol synthesis and bile acids 3 Urea cycle 2 Cofactor and prosthetic groups 2 Fundamental Concepts 2 Hemolytic anemia 2 Diagnosis in obstetrics 2 Fuel in Fed, Fasting and Starvation 2 Metabolic disorders 2 Pituitary 2 Lab Investigations 2 Immunity 2 Liver and Gall Bladder 2 Enzyme basics and serine proteases 2 Genetics And Genetic Disorders 2 Amino Acid Metabolic Disorder 2 Carcinogenesis 2 Translation 2 Anti-Hypertensive 2 Immunology Pa 2 ( Hybridoma Technology, Complement Pathways, Interferon, Structure and Functions of Immune Cells ) 2 Contraception 2 Endocrine 2 Autoimmune skin disorders 2 Cells and Tissues of Immune System 2 Vitreous and retina 2 Integrated QBank 2 Ear 2 Hematology 2 Disorders of Carbohydrate Metabolism 2 Thermal injuries 2 Urology 2 Genetic and genetic disorders 2 Transpo Processes 2 Cataract 2 Membrane Structure & Function 2 Mycology 2 Gastro Intestinal System 2 Biosynthesis of Fatty Acids and Eicosanoids 2 Asthma 2 Lysosomal Storage Diseases 2 Enterobecteriaceae 2 Epidemiology 2 Antenatal Screening 2 HAEM synth and porphyrias 2 Enzyme Specificity and Allosteric Regulation 2 Body Fluids 2 TCA Cycle 2 Pathology of Conception 2 Regional Anesthesia 2 Obstetrics 2 Biological Function of Proteins 2 Blood: Hemostasis and Blood Coagulation 2 Disorders of pituitary gland 2 Gall Bladder & Bile Ducts 2 Lens 2 Gastrointestinal System 2 Cholinergic System 2 Anti Microbial 2 Immunomodulators 2 Environment and Health 2 Oxidation of Fatty acids: Ketogenesis 2 Sources of blood glucose 2 Ovarian Hyperstimulation Syndrome (OHSS) 1 Ovarian Tumors 1 Mechanical injuries 1 Histology 1 Principles of Gas Exchange - Respiratory Membrane 1 Amyloidosis 1 Helminthology 1 Depolarising Neuromuscular Blocking Agents 1 Acute coronary syndrome 1 Secondary, Tertiary and Quaternary Structure of Proteins 1 Egg 1 Acute Inflammation - Overview and Morphologic Patterns 1 Respiration 1 Anti Adrenergic System 1 Concepts in physiology 1 Malabsorbtion Syndrome 1 Investigation in ophthalmology and miscellaneous topics 1 Mendelian Disorders: Single-Gene Defects 1 Nuclear medicine 1 Genetic Approach to Pediatric Medicine 1 Chemical mediators in plasma: Kinin system 1 Principles of Immunization and Vaccination 1 Demography and family planning 1 Hematology and CVS 1 Chronic Inflammation 1 Hemodynamics 1 General Concepts 1 Methionine and Cysteine details 1 Anti-Anginal 1 Immune Deficiency Diseases 1 Anticoagulants and Coagulants 1 Fluid, Electrolyte and Nutrition 1 Gram-Positive Infections - Corynebacterial Infections 1 Management In Orthopedics 1 Corynebacterium 1 Physiological Changes of Pregnancy 1 Local and Regional Anesthesia 1 Adrenal 1 Burns 1 Adrenergic System 1 Maternal and child care 1 Tumour markers 1 Cornea and sclera 1 Aerial disorders 1 Polycystic Kidneys 1 Gallstone Disease 1 Hospital waste, disaster management and occupational health 1 Musculoskeletal disorders 1 Biostatistics 1 Nature of Gene Abnormalities 1 Kidney Stones & Renal Tubular Acidosis 1 Forensic Toxicology - Concepts, Statutes, Evidence, and Techniques 1 Genital Differentiation 1 Fungal infections 1 VBDs, Arboviral & Viral Infections, Surface Infections 1 Antiplatelets and Fibrinolytics 1 Anatomy of skin 1 Pneumoconiosis 1 Basic Concepts 1 Infeility (Eggs'plantation!) 1 Physiology & Histology 1 Infections of the genital tract 1 Thyroid Tumor 1 Phospholipids, Glycolipids and their disorders 1 Occupational Health 1 Vitamins and Nutritional Deficiencies 1 Medical Entomology 1 Abnormality of Puerperium 1 Skeletal Muscle: Contraction and Excitation 1 Nucleotides 1 Diabites & Inappropriate Antidiuretic Hormone 1 Genetic Disorders 1 Mutations & Codons 1 Toxicology 1 Benign Gastric Disease 1 Diseases of Cornea 1 Allied Health Sciences 1 Bilirubin Metabolism 1 Scabies and other infestations 1 Auto Immune Disorders Introduction 1 Uveal tract 1 Physics of Radiotherapy 1 Neuro-Ophthalmology 1 Statistical Tests 1 Anatomy, Development and clinical examination 1 Mechanisms of Cell Injury 1 Primary Structure of Proteins 1 Hypersensitivity Reactions: Immune-Mediated Injury 1 Substance Related and Addictive Disorders 1 Normal Labour 1 Miscellaneous (Obs) 1 Anatomy of the female genital tract 1 Preoperative assessment and monitoring in anaesthesia 1 Hepatic encephalopathy & hepatic failure 1 Cytotoxic Anticancer Drugs 1 Tryptophan metabolism detail 1 Kidney disorders 1 Clinical Trials 1 Diabetes 1 Radiotherapy 1 JIPMER 2018 1 Sex-Hormone 1 Nutritional Requirements 1 General Anesthesia 1 Stomach & Duodenum 1 Special topics 1 Staphylococci 1 NCDs: CHD, HTN, DM, RF, Cancers, Obesity, Blindness 1 Kerbs Cycle 1 Peripheral Nerve & Skeletal Muscles 1 General surgery 1 Genetic Basics Of Carcinogenesis 1 Misc. (R.B.C) 1 Larynx 1 Malnutrition 1 Concepts in Biochemistry 1 Robotics, Laparoscopy and Bariatric Surgery 1 Secretory Functions of the Alimentary Tract 1 Reversible Cell Injury 1 NSAIDs, Gout and Rheumatoid Ahritis 1 Hypeension, Arrhythmias, Dyslipidemia 1 Mendalian Inheritance 1 Immunomodulator 1 Muscle relaxants 1 Opioids and Alcohols 1 Cellular Aging 1 Special Senses: Vision and its Elements 1 Abdomen and pelvis 1 ABG Analysis Simplified 1 Sexual Offenses 1 Membrane Potentials and Action Potentials 1 Blood Vessels 1 Irreversible cell Injury/Necrosis 1 Anti Thyroid 1 Childhood tumors 1 Targeted Anticancer Drugs and Immunosuppressants 1 Obstructive Lung Diseases 1 Special Sense Organs 1 Structure & Function of Protein 1 Nephrology 1 Chemotherapy: General Principles 1 Fat and Carbohydrate interconversion 1 Disorders of Ovulation - Anovulation 1 Concepts of Immunity, Classification of Vaccines 1 Anti-Fungal Drugs 1 Electrolyte 1 Miscellaneous (Pharmacology) 1 Neuromuscular Blocker 1 viral infection 1 Miscellaneous (Local and Regional Anesthesia) 1 Abdominal Radiography 1 Beta oxidation of fatty acids 1 Metabolic and endocrine disorders 1 Oncology 1 Nutrition, Food Security, and Health 1 Iron deficiency anemia 1 Infertility 1 Environment & Nutritional Pathology 1 Hemoglobinopathies: Sickle cell anemia 1 ECG and Arrhythmias 1 1 Primary Immunodeficiency 1 Inflammation & Repair 1 Pigmentation 1 Adverse Drug Effect 1 Endocrine Control of the Menstrual Cycle 1 Paediatric Care in RCH: BW, BL, PEM, Breast Feeding 1 Glycine Metabolism Detail 1 Urinary bladder 1 Miscellaneous (Lens) 1 Nephrotic Syndrome 1 Protein Synthesis Inhibitors 1 Arachidonic acid metabolites 1 Liver & Biliary Tract 1 Miscellaneous (Enzymes) 1 Kidney & Ureturs 1 Endocrine Regulation and the Pituitary Gland 1 Complement system 1 Electron Transport Chain and Biological Oxidation 1 Parasympathetic System & Glaucoma 1 Basics of genetics 1 Thermal injury 1 Disorders of Gastrointestinal System Including Diarrhea 1 Anatomy 1 Primary Amenorrhea 1 Basics of DNA 1 Four Formulas 1 Functional Anatomy - Respiratory System 1 Anatomy of Bone & Fracture Healing 1 Alcohol 1 Cellular Responses and Adaptations to Stress 1 Feeding Healthy Infants and Children 1 Systemic Lupus Erythematous 1 General Principles of Gastrointestinal Function 1 Transfusion 1 Conjuctiva 1 SLE 1 Diuretics, Kidney Diseases 1 Enzyme uses 1 Ophthalmology Q Bank 1 Injuries Around Hip 1 Drugs & Other Biological Methods of Treatment 1 Anti-Neoplastic Agents 1 Vigina 1 Psychiatry 1 Systemic Bacteriology Pa 1 (Gram Positive Cocci, Gram Negative Cocci) 1 Systemic histology 1

Frequently asked questions

What enzyme concepts does NEET test most?

Enzyme classification (by reaction type), the lock-and-key vs induced-fit models, and factors affecting enzyme activity (temperature, pH, substrate concentration) recur most often.

Is protein structure (primary to quaternary) really asked in detail?

Yes — distinguishing the four structural levels, and identifying which bonds (peptide, hydrogen, disulfide) stabilise each, is one of the more reliable question sources in this chapter.

How does Biomolecules connect to other chapters?

It underlies Respiration, Photosynthesis, and Molecular Basis of Inheritance (Class 12) — nucleic acid and enzyme concepts here are assumed knowledge in those later chapters.

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