Tamil Nadu Board of Secondary EducationHSC Science Class 11
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Important Solutions4
Concept Notes35
Syllabus

Zoology HSC Science Class 11 Tamil Nadu Board of Secondary Education Syllabus 2023-24

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Tamil Nadu Board of Secondary Education Class 11 Zoology Syllabus - Free PDF Download

Tamil Nadu Board of Secondary Education Syllabus 2023-24 Class 11: The Tamil Nadu Board of Secondary Education Class 11 Zoology Syllabus for the examination year 2023-24 has been released by the , Tamil Nadu Board of Secondary Education. The board will hold the final examination at the end of the year following the annual assessment scheme, which has led to the release of the syllabus. The 2023-24 Tamil Nadu Board of Secondary Education Class 11 Zoology Board Exam will entirely be based on the most recent syllabus. Therefore, students must thoroughly understand the new Tamil Nadu Board of Secondary Education syllabus to prepare for their annual exam properly.

The detailed Tamil Nadu Board of Secondary Education Class 11 Zoology Syllabus for 2023-24 is below.

Academic year:

Tamil Nadu Board of Secondary Education Class 11 Zoology Revised Syllabus

Tamil Nadu Board of Secondary Education Class 11 Zoology and their Unit wise marks distribution

Tamil Nadu Board of Secondary Education Class 11 Zoology Course Structure 2023-24 With Marking Scheme

#Unit/TopicWeightage
1  The Living World 
2  Kingdom Animalia 
3  Tissue Level of Organisation 
4  Organ and Organ Systems in Animals 
5  Digestion and Absorption 
6  Respiration 
7  Body Fluids and Circulation 
8  Excretion 
9  Locomotion and Movement 
10  Neural Control and Coordination 
11  Chemical Coordination and Integration 
12  Basic Medical Instruments and Techniques 
13  Trends in Economic Zoology 
 Total -
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Syllabus

1 The Living World
  • Diversity in the Living World  
    • Diversity in the Living World
    • Biodiversity
    • Types of Biodiversity
    1. Genetic Biodiversity
    2. Species Biodiversity
    3. Ecological Biodiversity
  • Need for Classification  
  • Taxonomy and Systematics  
    • Taxonomy
    • Systematics
    • Classification of Taxonomy
    1. Plant Taxonomy
    2. Animal Taxonomy
  • Three Domains of Life  
    • Three Domains of life
    • Domain Archaea
    • Domain Bacteria
    • Domain Eukarya (Eukaryotes)
  • Taxonomic Hierarchy  
    • Taxon
  • Nomenclature  
  • Concept of Species  
  • Tools for Study of Taxonomy  
    • The classical taxonomical tools
    • Molecular taxonomical tools
    • Automated species identification tools
2 Kingdom Animalia
  • New Criteria for Basis of Classification  
    • Levels of organisation
    • Cellular level of organisation
    • Tissue level of organisation
    • Organ system level of organisation
    • Diploblastic and Triploblastic organisation
    • Patterns of symmetry
    • Coelom
    • Segmentation and Notochord
  • Classification of Kingdom Animalia  
    • Parazoa
    • Eumetazoa
    1. Radiata
    2. Bilateria
    • Division 1: Protostomia
    • Division 2: Deuterostomia 
  • Invertebrata and Vertebrata  
    • Non Chordates (Invertebrata)  
    • Phylum: Chordata  
      • Chordata
      • Sub phylum - Urochordata
      • Sub phylum - Cephalochordata
      • Subphylum Prochordata
      • Subphylum Vertebrata
3 Tissue Level of Organisation
  • Animal Tissues  
    • Epithelial Tissue  
      • Epithelial Tissue
      • Location and Structure
      • Types of Epithelial Tissue
      1. Simple epithelium Tissue
        1. Squamous epithelial tissue
        2. Cuboidal epithelial tissue
        3. Columnar epithelium
        4. Ciliated epithelium
        5. Glandular epithelium
        6. Sensory epithelial tissue
        7. Germinal epithelial tissue
      2. Compound epithelial tissue
        a. Stratified epithelium
        b. Transitional epithelium
      • Cell junctions 
        Types of Cell junction
        - Tight junctions (TJs)
        - Hemidesmosomes (HDs)
        - Gap Junctions (GJs)
        - Adherens Junctions (AJs)
        - Desmosomes (Ds)
    • Connective Tissue  
      • Connective Tissue
      • Types of connective tissue
      1. Loose connective tissue
        1) Areolar tissue
        2) Adipose tissue
      2. Dense connective tissue
        1) Dense regular connective tissues
        2) Dense irregular connective tissues
      3. Specialised (supporting) connective tissue
        1) Cartilage
        a) Hyaline cartilage
        b) Elastic cartilage
        c) Fibrocartilage
        d) Calcified cartilage
        2) Bone
        3) Blood
      4. Fluid Connective tissue (Vascular)
    • Muscular Tissue  
      • Muscle Tissue 
      • Types of muscles
        1) Skeletal muscles
        2) Smooth or Non-striated muscles,
        3) Cardiac Muscles
  • Neural Tissue  
    • Neural tissue
    • Types of Neural tissue
    1. Neurons/Nerve cells 
    2. Neuroglial cells
4 Organ and Organ Systems in Animals
  • Earthworm - Lampito Mauritii  
    • Earthworms
    • Classification of earthworm
    • Economic importance of earthworm
  • Cockroach - Periplaneta Americana  
    • Cockroach - Periplaneta americana
    • Biological classification of cockroach
    • Various kinds of cockroaches
  • Frog - Rana Hexadactyla  
    • Frog - Rana hexadactyla
    • Biological classification of frog
    • Differences between a Frog and Toad
    • Economic importance of frog
5 Digestion and Absorption
  • Digestive System  
    • Structure of the alimentary canal
    • Histology of the Gut
    • Digestive glands
  • Digestion of Food and Role of Digestive Enzymes  
    • Digestion in the buccal cavity
    • Digestion in the stomach
    • Digestion in the small intestine
  • Peristalsis, Digestion, Absorption and Assimilation of Proteins, Carbohydrates and Fats  
    • Absorption
    • It is carried out by various processes:
    1. Passive Absorption
      ⇒ Process
      a) Simple diffusion
      b) Osmosis
      c) Facilitated transport
    2. Active absorption
    • Absorption of fatty acids and glycerol
    • Absorption in different parts of the alimentary canal
    • Assimilation
  • Egestion of Food  
  • Nutrients, Vitamins and Minerals  
    • Vitamins
    • Minerals
  • Caloric Value of Carbohydrates, Proteins and Fats  
  • Nutritional and Digestive Disorders  
6 Respiration
  • Respiratory Functions  
  • Respiratory Organs in Various Organisms  
    • Human Respiratory System
  • Breathing – Respiratory Cycle  
    • Inspiration (Inhalation)
    • Expiration (Exhalation)
    • Exchange of gases in the Alveoli
    • Difference between inhalation and exhalation
    • Differences between breathing and respiration
    • Model to show mechanism of breathing
    • Control of breathing movements
  • Exchange of Gases  
    • Exchange of Gases - in Humans
  • Transport of Gases  
    • Transport of oxygen
    • Transport of Carbon–dioxide
  • Regulation of Respiration  
    • Neural control
      1) Respiratory rhythm centre
      2) Pneumotaxic centre
    • Chemical Control
      1) Chemosensitive Area
      2) Chemoreceptors
  • Problems in Oxygen Transport  
  • Disorders of Respiratory System  
    • Disorders of the respiratory system
      1) Asthma
      2) Emphysema
      3) Occupational respiratory disorders
  • Effects of Smoking  
7 Body Fluids and Circulation
  • Body Fluids  
    • Plasma
    • Formed elements
    • Red blood cells
    • Blood groups
    • ABO blood grouping
    • Coagulation of blood
    • Composition of lymph and its functions
  • Blood Vessels – Arteries, Veins, and Capillaries  
  • Circulatory Pathways  
    • Human Circulatory System  
      • Circulatory System in Animals, Humans and Structure of Human Heart and Blood Vessels
      • Origin and conduction of heart beat 
      • Cardiac Cycle
      • Cardiac output
      • Blood Pressure
      • Electrocardiogram (ECG)
      • P Wave (Atrial depolarisation)
      • PQ Interval (AV node delay)
      • QRS Complex (Ventricular depolarisation)
      • ST Segment 
      • T wave (Ventricular repolarisation)
  • Double Circulation  
    • Pulmonary Circulation
    • Systematic Circulation
    • Hepatic Portal System
    • Coronary System
  • Regulation of Cardiac Activity  
  • Disorders of Circulatory System  
    • Disorders of the Circulatory System:
    1. Hypertension/ High blood pressure: Normal blood pressure
    2. Coronary Artery Disease (CAD) or Atherosclerosis
    3. Angina / Angina pectoris
    4. Heart Failure: Myocardial infarction (Heart failure), Cardiac arrest, Heart attack, Stroke
    5. Rheumatoid Heart Disease
  • Diagnosis and Treatment  
    • Angiogram
    • Angioplasty
    • Bypass Surgery
    • Heart Transplantation
    • Cardio pulmonary resuscitation (CPR)
8 Excretion
  • Modes of Excretion: Ammonotelism, Ureotelism, and Uricotelism  
    • Modes of Excretion
    1. Ammonotelism
    2. Ureotelism 
    3. Uricotelism 
    • Nephridiopores
    • Types of nephridia
    1. Protonephridia
    2. Metanephridia
  • Human Excretory System  
    • Kidneys
    • Sweat glands
    • Ureters
    • Urinary bladder
    • Urethra
    • Lungs
    • Kidneys
      ⇒ V.S. of kidney shows that there are two distinct regions:
      1) Renal Cortex
      2) Renal Medulla
    • Nephron
      ⇒ Structure of nephron: Glomerulus, Renal Tubule
      1) Bowman's capsule (Glomerular capsule)
      2) Proximal Convoluted Tubule (PCT)
      3) Loop of Henle
      4) Distal convoluted tubule (DCT)
      5) Collecting tubule (CT)
  • Function of the Kidney - “Production of Urine”  
    • Ultrafiltration
    • Reabsorption
    • Tubular secretion (Renal Secretion)
    • Distal convoluted tubule (DCT)
    • Collecting duct
  • Regulation of Kidney Function  
    • Osmoregulation
    • Regulation of Kidney Function
    1. Renin-Angiotensin,
    2. Atrial Natriuretic Factor (ANF)
    3. ADH and Diabetes Inspidus
  • Micturition  
    • Urine
  • Accessory Excretory Organs  
    • Excretory role of skin
    • Excretory role of lungs
    • Excretory role of liver
  • Common Disorders of the Urinary System  
    • Kidney stones
    • Uremia
    • Nephritis
    • Renal Failure
    • Diabetes
    • Urinary tract infection
    • Haemodialysis
    • Peritoneal dialysis 
    • Kidney transplant
    • Renal Calculi
    • Glomerulonephritis
  • Haemodialysis  
9 Locomotion and Movement
  • Types of Movement  
    • Types of movement
      1) Amoeboid movement
      2) Ciliary movement
      3) Muscular movement
  • Different Types of Muscles and Their Functions  
  • Skeletal Muscle (Voluntary Muscle)  
    • Structure of a skeletal muscle fibre
  • Structure of Contractile Proteins  
    • Structure of Contractile Proteins
    1. Actin filament
    2. Myosin filament
  • Mechanism of Muscle Contraction  
    • Mechanism of muscle contraction
    • Steps of muscle contraction
  • Types of Skeletal Muscle Contraction  
    • Isotonic contraction
    • Isometric contraction
  • Properties of Skeletal Muscle  
  • Skeletal System and Its Function  
  • The Axial Skeleton  
    • The Skull 
    • The Vertebral Column
    • The Sternum (Chest bone)
    • The Rib cage
  • The Appendicular Skeleton  
    • The Upper limb
    • The Lower limb
    • Structure of a typical long bone
  • Types of Joints  
    • Synarthroses
    • Sutures
    • Syndesmoses
    • Gomphoses
      A. Cartilagenous or slightly movable joints - Synchondroses, Symphysis
      B. Synovial joints or freely movable joints - Pivot joint, Ball and socket joint, Hinge joint, Condyloid joint, Gliding joint, Saddle joint.
  • Disorders of Muscular and Skeletal System  
    • Disorders of Muscular and Skeletal System -
    1. Myasthenia gravis
    2. Tetany
    3. Muscular dystrophy
    4. Arthritis
    5. Osteoporosis
    6. Gout
  • Benefits of Regular Exercise  
    1. Health Benefits
      (a) Reduces risk of Cardiovascular Disease
      (b) Weight Management
      (c) Strengthens Bones and Muscles
      (d) Reduces risk of some Cancers
      (e) Reduces risk of Falls
    2. Provides Stress Relief
    3. Increases Happiness
    4. Promotes Self-Efficacy
    5. Promotes Social Cohesion
    6. Enhances Value Orientation
    7. Cognitive Benefits
      (a) Attention Control
      (b) Improves Memory
    8. Mental Health Benefits
      (a) Exercise as therapy for emotional disorder
      (b) Fitness as moderator of life stress
      (c) Runners High
    9. Psychological Well-being
    10. Personality Enhancement
    11. Develops Leadership Qualities
    12. Special Population
      (a) Clinical Population
      (b) Elderly Population
  • Bone Fracture  
    • Mechanism and healing of a bone fracture
    1. Formation of haematoma
    2. Formation of fibrocartilaginous callus 
    3. Formation of Bony callus 
    4. Remodeling of Bone
  • Dislocation of Joints and Treatment  
  • Physiotherapy  
10 Neural Control and Coordination
  • Human Neural System  
  • Neuron (Or Nerve Cell) and Its Types  
    • Neuron as Structural and Functional Unit of Neural System  
      • Neuron consists of three parts: Cell body, axon and dendrites
      • Structure of the neuron
        1) Cell body (Cyton)
        2) Axon - Neuron-muscular junction, synaptic knob, neurotransmitters
        ⇒ Types of axons:
        a) Myelinated nerve fibres: Schwann cells, Nodes of Ranvier
        b) Non-myelinated nerve fibres
        3) Dendrites
      • Types based on the number of axons and dendrites
        (i) Unipolar
        (ii) Bipolar
        (iii) Multipolar
  • Concept of Central Neural System (CNS)  
    • Brain
    1. Forebrain
    2. Midbrain
    3. Hindbrain
    •  Spinal cord
  • Reflex and Reflex Action  
    • Reflexes
    • Types of actions
    1. Voluntary actions 
    2. Involuntary actions
  • Sensory Reception and Processing  
    • Photoreceptor - Eye
    • Phonoreceptor
    • Olfactory receptors
11 Chemical Coordination and Integration
  • Human Endocrine System  
    • Human Endocrine System
    • The hormones at a glance
  • Hypo and Hyper Activity of Endocrine Glands and Related Disorders  
  • Mechanism of Hormone Action  
    • Mechanism of Hormone Action
    • Hormones and their types
    • Target cells have specific receptors
12 Basic Medical Instruments and Techniques
  • Diagnostic and Monitoring Instruments  
    • Stethoscope
    • Clinical significance of stethoscope
    • Sphygmomanometer
    • Types of sphygmomanometer
    • Clinical Significance
    • Glucometer
    • Significance
    • Autoanalyser
  • Imaging Instruments  
    • EEG – Electroencephalogram
    • Clinical significance of EEG
    • X-rays
    • Ultrasound imaging
    • Computed Tomographic (CT)
    • Positron Emission Tomographic Scanning (PET)
    • MRI-Magnetic Resonance Imaging
  • Therapeutic Instruments  
    • Pacemakers
    • Medical LASER
  • Biomedical Techniques  
    • Blood Cell Counting using Haemocytometer
    • Preparation of Blood Smear
    • Differential Count 
13 Trends in Economic Zoology
  • Scope of Zoology  
  • Vermiculture  
    • Vermicomposting
    • Advantages of Using Vermicompost
  • Sericulture  
    •  Sericulture 
    • The life cycle of silk moth (Mulberry silkworm)
    • Uses of Sericulture
  • Animal Husbandry (Livestock)  
    • Apiculture (Bee Farming)  
      • Apiculture
      • Types of Honey Bee
      • Useful product of Honey Bees
  • Lac Culture  
    • Lac culture
    • Life Cycle of Lac Insect
  • Aquaponics  
    • Advantages of Aquaponic gardening
  • Aquaculture  
    • Fish culture
    • Prawn Culture 
    • Pearl Culture
  • Animal Husbandry and Management  
    • Poultry Farming
    • Duck Farming

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