Topics
Diversity of Living Organisms
The Living World
- Concept of Living
- Diversity in the Living World
- Taxonomic Hierarchy of Living Organisms: Unit of Classification
- Three Domains of Life
- Taxonomical Aids
Biological Classification
Plant Kingdom
- Introduction of Plant Kingdom
- Classification System - Artificial and Natural
- Phylogenetic Classification System
- Sub Classification of Plantae
- Concept of Algae
- Cryptogams > Division II- Bryophytes
- Cryptogams > Division III- Pteridophytes
- Phanerogams
- Phanerogams > Division I-Gymnosperms
- Phanerogams > Division II- Angiosperms
- Life Cycle Patterns in Plants
Animal Kingdom
Structural Organisation in Animals and Plants
Morphology of Flowering Plants
- Morphology and Modifications of Root, Stem, Leaf
- Types of Root
- Modifications of Roots for Storage, Respiration (Pneumatophores) and Support (Stilt and Prop)
- Stems
- The Stem
- Leaves
- Types of Leaves
- Phyllotaxy – Alternate, Opposite, Whorled (With an Example of Each)
- Modifications for Mechanical Support, Protection, Storage, Reproduction; Insectivorous Plant (Pitcher Plant, Venus-fly-trap
- Morphology of Flower, Fruit and Seed
- Types of Inflorescence (Racemose and Cymose)
- Structure of a Typical Flower
- Fruits to Be Classified into True and False, Structure of a Typical Fruit (Mango and Coconut)
- Structure of a Dicotyledonous Seed
- Non-Albuminous and Albuminous, Perisperm
- Description of Families – Solanaceae, Fabaceae and Liliaceae
Anatomy of Flowering Plants
- Meristems or Meristematic Tissues
- Permanent Tissue
- Epidermal Tissue System
- Internal Structure of Root, Stem, and Leaf
- Secondary Growth in Dicot Stem and Dicot Root (With the Help of Outline Diagrams)
- Formation of Annual Rings
- Activity of the Cambium and Cork Cambium
- Formation of Secondary Tissues
- Differences Between Heart Wood and Sap Wood
- Early Wood and Late Wood
- Definition of Bark
Structural Organisation in Animals
- Introduction of Structural Organisation in Animals
- Epithelial Tissue
- Connective Tissue
- Muscular Tissue
- Morphology of Cockroach
- Location, Structure and Functions of Epithelial Tissues with Examples
- Types of Junctions
- Location and General Structure of Areolar Tissue
- Difference Between Bone and Cartilage
- T.S. of Hyaline Cartilage and Bone
- Different Types of Muscles and Their Functions
- Anatomy of Cockroach
Cell: Structure and Function
Cell - The Unit of Life
- Cell Theory
- Structure of Prokaryotic and Eukaryotic Cells
- Plant Cell Vs Animal Cell
- Cell: Structural and Functional Unit of Life
- Endomembrane System
- Mitochondria - “Power House of the Cell”
- Ribosomes - "The sites of protein synthesis"
- Plastids
- Microbodies
- Cytoskeleton
- Cilia and Flagella
- Centrosome and Centrioles
- Structure of the Cell > Nucleus: “Brain” of the Cell
Biomolecules
Cell Cycle and Cell Division
Plant Physiology
Transport in Plants
- Introduction of Transport in Plants
- Movement of Water, Gases and Nutrients
- Cell to Cell Transport
- Diffusion
- Active Transport
- Osmosis
- Turgidity and Flaccidity (Plasmolysis)
- Introduction of Long Distance Transport of Water
- Uptake of Mineral Ions
- Concept of Plant-water Relations
- Diffusion of Gases
- Transport in Plants (Numericals)
Mineral Nutrition
- Elementary Idea of Hydroponics
- Criteria for Essentiality
- Macro and Micro Nutrients and Their Role
- Nitrogen Metabolism
- Nitrogen to Ammonia Conversion and Nitrogenase
- Deficiency Symptoms of Essential Elements
- Toxicity of Micronutrients
Photosynthesis in Higher Plants
- Experiments on Photosynthesis
- Photosynthesis Reaction
- Cyclic and Non-cyclic Photo-phosphorylation
- Pigments in Photosynthesis
- Photochemical and Biosynthetic Phases of Photosynthesis
- Photosynthesis as a Mean of Autotrophic Nutrition
- Site of Photosynthesis
- Photorespiration
- Light Reaction
- Factors Affecting Photosynthesis
Respiration in Plants
Plant Growth and Development
Human Physiology
Digestion and Absorption
- Alimentary Canal
- Role of Digestive Enzymes and Gastrointestinal Hormones
- Peristalsis, Digestion, Absorption and Assimilation of Proteins, Carbohydrates and Fats
- Calorific Values of Proteins
- Calorific Values of Carbohydrates
- Calorific Values of Fats
- Egestion of Food
- Nutritional and Digestive Tract Disorders
Breathing and Exchange of Gases
Body Fluids and Circulation
Excretory Products and Their Elimination
- Modes of Excretion: Ammonotelism, Ureotelism, and Uricotelism
- Modes of Excretion: Ammonotelism, Ureotelism, and Uricotelism
- Modes of Excretion: Ammonotelism, Ureotelism, and Uricotelism
- Human Excretory System
- Function of the Kidney - “Production of Urine”
- Osmoregulation
- Regulation of Kidney Function
- The Excretory Organs
- Common Disorders of the Urinary System
- Dialysis and Artificial Kidney
Locomotion and Movement
Neural Control and Coordination
Chemical Co-ordination and Integration
- Introduction of Chemical Coordination and Integration
- Role of Hormones as Messengers and Regulators
- Hypo and Hyperactivity and Related Disorders
Estimated time: 3 minutes
CBSE: Class 12
Key Points: Human Circulatory System
- Arteries carry oxygenated blood from the heart to tissues, while veins bring deoxygenated blood back; capillaries connect them.
- Exception: Pulmonary artery carries deoxygenated blood, and pulmonary vein carries oxygenated blood.
- The heart is fist-sized, located in the thorax between the lungs, and protected by the pericardium.
- The heart has four chambers separated by septa, with valves (tricuspid, bicuspid/mitral, semilunar) ensuring one-way blood flow.
- Heart sounds: “Lub” is due to closure of the tricuspid and bicuspid valves, and “Dub” is due to closure of the semilunar valves.
- The SA node (pacemaker) generates impulses (70–75/min) and controls the heartbeat through the AV node and the bundle of His.
Shaalaa.com | Body Fluids and Circulation part 11 (Circulatory System in Animals)
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Body Fluids and Circulation part 11 (Circulatory System in Animals)
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Body Fluids and Circulation part 12 (Fishes, Amphibians circulatory system)
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Body Fluids and Circulation part 13 (Human circulatory system)
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Body Fluids and Circulation part 15 (Nodal Tissues in Heart : SA , AV nodes)
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