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Class 11 Biology NCERT Solutions

CBSE, Karnataka Board PUC Class 11 Biology Solutions Guide

Shaalaa.com provides the CBSE, Karnataka Board PUC Class 11 Biology Solutions Digest. Shaalaa is undoubtedly a site that most of your classmates are using to perform well in exams.

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CBSE, Karnataka Board PUC Class 11 Biology Textbook Solutions

Questions and answers for the Class 11 Biology Textbook are on this page. NCERT Solutions for Class 11 Biology Digest CBSE, Karnataka Board PUC will help students understand the concepts better.


NCERT Solutions for Class 11 Biology Chapterwise List | Class 11 Biology Digest

The answers to the NCERT books are the best study material for students. Listed below are the chapter-wise NCERT Biology Class 11 Solutions CBSE, Karnataka Board PUC.


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Class 11 Biology NCERT Solutions - Shaalaa.com
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NCERT Class 11 solutions for other subjects

We also provide solutions for other subjects to help you top the exams. These NCERT solutions are curated with respect to the exam pattern and old papers. Find the best questions and solutions here. Click now to access it.

Chapters covered in NCERT Solutions for Biology [English] Class 11

NCERT Solutions for Class 11 Biology (11th) 1: The Living World

Concepts covered in The Living World are Diversity in the Living World, Taxonomical Aids, Taxonomic Hierarchy of Living Organisms: Unit of Classification, What is ‘Living’?.

NCERT Class 11 Biology (11th) 1: The Living World exercises

ExerciseNo. of questionsPages
Exercises1515

NCERT Solutions for Class 11 Biology (11th) 2: Biological Classification

Concepts covered in Biological Classification are Bacteria, Biological Classification, Classification of Bacteria, Classification of Kingdom Plantae, Division of Kingdom Fungi, Division of Kingdom Monera, Examples of Kingdom Monera, Five Kingdom Classification, Fungi, History of Classification, Kingdom Animalia, Kingdom Fungi, Kingdom Monera, Kingdom Protista, Lichens, Life Cycle Patterns in Plants, Life Processes in Fungi: Nutrition, Prions, Protozoa, Reproduction in Fungi, Structure and Function of Viruses, Structure of Bacteria, Structure of Fungi, Viroids, Viruses.

NCERT Class 11 Biology (11th) 2: Biological Classification exercises

ExerciseNo. of questionsPages
Exercises1428

NCERT Solutions for Class 11 Biology (11th) 3: Plant Kingdom

Concepts covered in Plant Kingdom are Algae, Classification of Kingdom Plantae, Division I-Gymnosperms, Division II- Angiosperms, Division II- Bryophytes, Division III- Pteridophytes, Division I- Thallophyta, Life Cycle Patterns in Plants, Systems of Plant Taxonomy.

NCERT Class 11 Biology (11th) 3: Plant Kingdom exercises

ExerciseNo. of questionsPages
Exercises1944 to 45

NCERT Solutions for Class 11 Biology (11th) 4: Animal Kingdom

Concepts covered in Animal Kingdom are Class: Amphibia, Class: Aves, Class: Chondrichthyes, Class: Cyclostomata, Classification of Kingdom Animalia, Class: Mammalia, Class: Osteichthyes, Class: Reptilia, Invertebrata and Vertebrata, Kingdom Animalia, New Criteria for Basis of Classification, Non Chordates (Invertebrata), Phylum: Annelida, Phylum: Arthropoda, Phylum: Aschelminthes, Phylum: Chordata, Phylum: Cnidaria/Coelenterata, Phylum: Ctenophora, Phylum: Echinodermata, Phylum: Hemichordata, Phylum: Mollusca, Phylum: Platyhelminthes, Phylum: Porifera.

NCERT Class 11 Biology (11th) 4: Animal Kingdom exercises

ExerciseNo. of questionsPages
Exercises1545 to 62

NCERT Solutions for Class 11 Biology (11th) 5: Morphology of Flowering Plants

Concepts covered in Morphology of Flowering Plants are Description of Some Important Families, Parts of Flower, Plant Morphology, Root System, Semi-technical Description of a Typical Flowering Plant, Shoot System, Structure of a Dicotyledonous Seed, Structure of Monocotyledonous Seed, The Flower, The Fruit, The Inflorescence, The Leaf, The Seed.

NCERT Class 11 Biology (11th) 5: Morphology of Flowering Plants exercises

ExerciseNo. of questionsPages
Exercises2782 to 83

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NCERT Solutions for Class 11 Biology (11th) 6: Anatomy of Flowering Plants

Concepts covered in Anatomy of Flowering Plants are Anatomy and Functions of Different Parts of Flowering Plants, Complex Permanent Tissue: Phloem Structure and Function (Conducting Tissue), Complex Permanent Tissues, Complex Permanent Tissue: Xylem Structure and Function (Conducting Tissue), Cork Cambium, Dicotyledonous Root, Dicotyledonous Stem, Dorsiventral (Dicotyledonous) Leaf, Epidermal Tissue System, Ground Tissue System, Isobilateral (Monocotyledonous) Leaf, Meristems or Meristematic Tissues, Monocotyledonous Root, Monocotyledonous Stem, Permanent Tissue, Plant and Animals Tissue, Secondary Growth in Roots, Simple Permanent Tissues (Supporting Tissue), Tissues - “The Teams of Workers”, Vascular Cambium, Vascular Tissue System.

NCERT Class 11 Biology (11th) 6: Anatomy of Flowering Plants exercises

ExerciseNo. of questionsPages
Exercises1399

NCERT Solutions for Class 11 Biology (11th) 7: Structural Organisation in Animals

Concepts covered in Structural Organisation in Animals are Anatomy of Cockroach, Anatomy of Earthworm, Anatomy of Frog, Connective Tissue, Earthworm - Lampito Mauritii, Epithelial Tissue, Introduction of Structural Organisation in Animals, Morphology of Cockroach, Morphology of Earthworm, Morphology of Frog, Muscular Tissue, Neural Tissues, Organ and Organ System.

NCERT Class 11 Biology (11th) 7: Structural Organisation in Animals exercises

ExerciseNo. of questionsPages
Exercises2699 to 122

NCERT Solutions for Class 11 Biology (11th) 8: Cell: The Unit of Life

Concepts covered in Cell: The Unit of Life are Cell Envelope and Its Modifications, Cell Membrane, Cell: Structural and Functional Unit of Life, Cell Theory, Cell Wall, Centrosome and Centrioles, Cilia and Flagella, Cytoskeleton, Endomembrane System, Microbodies, Mitochondria, Nucleus, Organisms Show Variety in Cell Number, Shape and Size, Overview of Cell, Plant Cell and Animal Cell, Plastids, Prokaryotic Cells, Ribosomes, Ribosomes and Inclusion Bodies, Structure and Functions of Cell Envelope, Cell Membrane, Cell Wall, Cell Organelles, Structure of Prokaryotic and Eukaryotic Cells, The Invention of the Microscope and the Discovery of Cell.

NCERT Class 11 Biology (11th) 8: Cell: The Unit of Life exercises

ExerciseNo. of questionsPages
Exercises16141

NCERT Solutions for Class 11 Biology (11th) 9: Biomolecules

Concepts covered in Biomolecules are Biomacromolecules, Biomolecules in Living System, Carbohydrates, Chemical Constituents of Living Cells, Classification and Nomenclature of Enzymes, Dynamic State of Body Constituents – Concept of Metabolism, Enzymes, Enzymes - Chemical Reactions, Enzymes - Co-factors, Enzymes - High Rates of Chemical Conversions, Factors Affecting Enzyme Activity, How to Analyse Chemical Composition?, Metabolic Basis for Living, Nature of Bond Linking Monomers in a Polymer, Nature of Enzyme Action, Nucleic Acids, Polysaccharides, Primary and Secondary Metabolites, Proteins, Structure and Function of Lipids, Structure of Proteins, The Living State.

NCERT Class 11 Biology (11th) 9: Biomolecules exercises

ExerciseNo. of questionsPages
Exercises15160 to 161

NCERT Solutions for Class 11 Biology (11th) 10: Cell Cycle and Cell Division

NCERT Class 11 Biology (11th) 10: Cell Cycle and Cell Division exercises

ExerciseNo. of questionsPages
Exercises19171 to 172

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NCERT Solutions for Class 11 Biology (11th) 11: Transport in Plants

Concepts covered in Transport in Plants are Active Transport, Cell to Cell Transport, Comparison of Different Transport Processes, Concept of Imbibition, Concept of Plant-water Relations, Diffusion of Gases, Facilitated Diffusion, Introduction of Long Distance Transport of Water, Introduction of Transport in Plants, Movement of Water, Gases and Nutrients, Osmosi, Phloem Transport - Flow from Source to Sink, Phloem Transport - Pressure Flow Or Mass Flow Hypothesis, Plants Absorb Water, Simple Diffusion, Structure of Stomatal Apparatus, Transpiration, Transpiration - Transpiration and Photosynthesis – a Compromise, Transport in Plants (Numericals), Transport of Mineral Ions, Turgidity and Flaccidity (Plasmolysis), Uptake of Mineral Ions, Water Movement up a Plant, Water Potential (ψ).

NCERT Class 11 Biology (11th) 11: Transport in Plants exercises

ExerciseNo. of questionsPages
Exercises22193

NCERT Solutions for Class 11 Biology (11th) 12: Mineral Nutrition

Concepts covered in Mineral Nutrition are Biological Nitrogen Fixation, Criteria for Essentiality, Deficiency Symptoms of Essential Elements, Elementary Idea of Hydroponics, Macro and Micro Nutrients and Their Role, Mechanism of Absorption of Elements, Methods to Study the Mineral Requirements of Plants, Mineral Nutrition (Questions), Nitrogen Cycle, Nitrogen Metabolism, Nitrogen to Ammonia Conversion and Nitrogenase, Plant Mineral Nutrition, Soil as Reservoir of Essential Elements, Toxicity of Micronutrients, Translocation of Solutes.

NCERT Class 11 Biology (11th) 12: Mineral Nutrition exercises

ExerciseNo. of questionsPages
Exercises17193 to 205

NCERT Solutions for Class 11 Biology (11th) 13: Photosynthesis in Higher Plants

Concepts covered in Photosynthesis in Higher Plants are Chloroplast Structure, Early Experiments on Photosynthesis, Electron Transport, Electron Transport - Chemiosmotic Hypothesis, Electron Transport - Cyclic and Non-cyclic Photo-phosphorylation, Electron Transport - Photolysis / Splitting of Water, Factors Affecting Photosynthesis, Light Dependent Reaction (Hill Reaction \ Light Reaction), Light-independent Reactions, Photochemical and Biosynthetic Phases of Photosynthesis, Photorespiration, Photosynthesis as a Mean of Autotrophic Nutrition, Photosynthesis in Higher Plants (Questions), Photosynthesis Reaction, Pigments Are Involved in Photosynthesis, Primary Acceptor of CO2, Site of Photosynthesis, The C4 Pathway, The Calvin Cycle, Where Does Photosynthesis Take Place?.

NCERT Class 11 Biology (11th) 13: Photosynthesis in Higher Plants exercises

ExerciseNo. of questionsPages
Exercises10224 to 225

NCERT Solutions for Class 11 Biology (11th) 14: Respiration in Plants

Concepts covered in Respiration in Plants are Amphibolic Pathways, Energy Relations - Number of ATP Molecules Generated, Exchange of Gases - in Plants, Oxidation of Pyruvate, Phases of Respiration: Electron Transport System (Ets) and Oxidative Phosphorylation, Phases of Respiration: Fermentation, Phases of Respiration: Glycolysis, Phases of Respiration: Tricarboxylic Acid Cycle (Citric Acid Cycle Or Kreb’s Cycle), Plants Breathe, Respiration in Plant, Respiratory Balance Sheet, Respiratory Quotient (R.Q.), Types of Respiration: Aerobic and Anaerobic Respiration.

NCERT Class 11 Biology (11th) 14: Respiration in Plants exercises

ExerciseNo. of questionsPages
Exercises17238

NCERT Solutions for Class 11 Biology (11th) 15: Plant Growth and Development

Concepts covered in Plant Growth and Development are Characteristics of Growth Regulators, Concept of Development, Conditions Necessary for Plant Growth, Coordination in Plant: Tropism in Plants, Differentiation, Dedifferentiation and Redifferentiation, Discovery of Plant Growth Regulators, Formation of Seed and Fruit, Introduction of Plant Growth and Development, Phases of Plant Growth, Photoperiodism, Physiological Effects of Plant Growth Regulators, Plant Growth and Development (Questions), Plant Growth Generally is Indeterminate, Plant Growth Rate, Vernalisation.

NCERT Class 11 Biology (11th) 15: Plant Growth and Development exercises

ExerciseNo. of questionsPages
Exercises29253 to 254

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NCERT Solutions for Class 11 Biology (11th) 16: Digestion and Absorption

Concepts covered in Digestion and Absorption are Absorption of Digested Products, Alimentary Canal, Calorific Values of Carbohydrates, Calorific Values of Fats, Calorific Values of Proteins, Digestion and Absorption Questions, Digestion of Food, Digestive Glands, Egestion of Food, Introduction of Digestion and Absorption, Nutritional and Digestive Tract Disorders, Peristalsis, Digestion, Absorption and Assimilation of Proteins, Carbohydrates and Fats, Role of Digestive Enzymes and Gastrointestinal Hormones.

NCERT Class 11 Biology (11th) 16: Digestion and Absorption exercises

ExerciseNo. of questionsPages
Exercises17267

NCERT Solutions for Class 11 Biology (11th) 17: Breathing and Exchange of Gases

Concepts covered in Breathing and Exchange of Gases are Breating and Exchange of Gases (Questions), Disorders of Respiratory System, Exchange of Gases, Human Respiratory System, Introduction of Breating and Exchange of Gases, Mechanism of Breathing, Regulation of Breathing / Respiration, Respiratory Organs, Respiratory Volumes and Capacities, Transport of Gases - Transport of Carbon Dioxide, Transport of Gases - Transport of Oxygen.

NCERT Class 11 Biology (11th) 17: Breathing and Exchange of Gases exercises

ExerciseNo. of questionsPages
Exercises16277

NCERT Solutions for Class 11 Biology (11th) 18: Body Fluids and Circulation

Concepts covered in Body Fluids and Circulation are Blood Transfusion and Blood Groups (ABO and Rh system), Body Fluids and Circulation (Questions), Cardiac Cycle, Cardiac Output, Compatibility of Antigen, Composition of Blood: Plasma (The Liquid Portion of Blood), Disorders of Circulatory System, Electrocardiograph (ECG), Function of Platelets - Clotting of Blood (Coagulation), Human Circulatory System, Introduction of Body Fluids and Circulation, Lymph and Lymphatic System, Regulation of Cardiac Activity, Types of Closed Circulation.

NCERT Class 11 Biology (11th) 18: Body Fluids and Circulation exercises

ExerciseNo. of questionsPages
Exercises18289

NCERT Solutions for Class 11 Biology (11th) 19: Excretory Products and their Elimination

Concepts covered in Excretory Products and their Elimination are Accessory Excretory Organs, Common Disorders of the Urinary System, Dialysis and Artificial Kidney, Function of the Kidney - “Production of Urine”, Function of the Tubules, Human Excretory System, Introduction of Excretory Products and Their Elimination, Mechanism of Concentration of the Filtrate, Micturition, Modes of Excretion: Ammonotelism, Ureotelism, and Uricotelism, Osmoregulation, Regulation of Kidney Function.

NCERT Class 11 Biology (11th) 19: Excretory Products and their Elimination exercises

ExerciseNo. of questionsPages
Exercises20289 to 301

NCERT Solutions for Class 11 Biology (11th) 20: Locomotion and Movement

Concepts covered in Locomotion and Movement are Disorders of Muscular and Skeletal System, Introduction of Locomotion and Movement, Joints and Its Classification, Locomotion and Movement (Questions), Mechanism of Muscle Contraction, Muscles, Skeletal System, Structure of Contractile Proteins, Types of Movement.

NCERT Class 11 Biology (11th) 20: Locomotion and Movement exercises

ExerciseNo. of questionsPages
Exercises25313 to 314

NCERT Solutions for Class 11 Biology (11th) 21: Neural Control and Coordination

Concepts covered in Neural Control and Coordination are Central Nervous System (CNS), Eye - Mechanism of Vision, Human Ear, Human Eye, Human Neural System, Neural Control and Coordination Questions, Neuron (Or Nerve Cell) and Its Types, Reflex and Reflex Action, Sense Organs, Sensory Perception, The Ear - Mechanism of Hearing, Transmission of Nerve Impulse.

NCERT Class 11 Biology (11th) 21: Neural Control and Coordination exercises

ExerciseNo. of questionsPages
Exercises44328 to 329

NCERT Solutions for Class 11 Biology (11th) 22: Chemical Coordination and Integration

Concepts covered in Chemical Coordination and Integration are Adrenal Gland (Suprarenal Gland), Chemical Coordination and Integration (Questions), Hormones of Heart, Kidney and Gastrointestinal Tract, Human Endocrine System, Hypo and Hyperactivity and Related Disorders, Introduction of Chemical Coordination and Integration, Mechanism of Hormone Action, Ovary, Pancreas (Islets of Langerhans), Parathyroid Gland, Pituitary Gland or Hypophysis Gland, Role of Hormones as Messengers and Regulators, Testis, The Hypothalamus, The Pineal Gland, Thymus Gland, Thyroid Gland.

NCERT Class 11 Biology (11th) 22: Chemical Coordination and Integration exercises

ExerciseNo. of questionsPages
Exercises39341 to 342

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NCERT Solutions for Biology [English] Class 11

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