Topics
The Living World
- What is ‘Living’?
- Diversity in the Living World
- Diversity in the Living World
- Taxonomic Hierarchy of Living Organisms: Unit of Classification
- Taxonomical Aids
Diversity in the Living World
Biological Classification
- History of Classification
- Five Kingdom Classification
- Kingdom Monera
- Bacteria
- Classification of Bacteria
- Structure of Bacteria
- Division of Kingdom Monera
- Examples of Kingdom Monera
- Kingdom Protista
- Protozoa
- Kingdom Protista
- Kingdom Fungi
- Fungi
- Structure of Fungi
- Life Processes in Fungi: Nutrition
- Reproduction in Fungi
- Division of Kingdom Fungi
- Classification of Kingdom Plantae
- Classification of Kingdom Plantae
- Life Cycle Patterns in Plants
- Kingdom Animalia
- Viruses
- Structure and Function of Viruses
- Viroids
- Prions
- Lichens
Structural Organisation in Plants and Animals
Cell: Structure and Function
Plant Kingdom
- Classification of Kingdom Plantae
- Classification of Kingdom Plantae
- Systems of Plant Taxonomy
- Life Cycle Patterns in Plants
- Cryptogams > Division I- Thallophyta
- Algae
- Cryptogams > Division II- Bryophytes
- Cryptogams > Division III- Pteridophytes
- Phanerogams > Division I-Gymnosperms
- Phanerogams > Division II- Angiosperms
Plant Physiology
Animal Kingdom
- Kingdom Animalia
- Classification of Kingdom Animalia
- Invertebrata and Vertebrata
- Non Chordates (Invertebrata)
- Subphylum -Vertebrata/Craniata > Class: Chondrichthyes
- Subphylum -Vertebrata/Craniata > Class: Osteichthyes
Human Physiology
Morphology of Flowering Plants
- Plant Morphology
- Root System
- Shoot System
- The Leaf
- Shoot System
- The Inflorescence
- Structure of a Dicotyledonous Seed
- Structure of Monocotyledonous Seed
- Semi-technical Description of a Typical Flowering Plant
- Description of Some Important Families
Anatomy of Flowering Plants
- Anatomy and Functions of Different Parts of Flowering Plants
- Tissues - “The Teams of Workers”
- Plant and Animals Tissue
- Meristems or Meristematic Tissues
- Permanent Tissue
- Simple Permanent Tissues (Supporting Tissue)
- Complex Permanent Tissues
- Complex Permanent Tissue: Xylem Structure and Function (Conducting Tissue)
- Complex Permanent Tissue: Phloem Structure and Function (Conducting Tissue)
- Epidermal Tissue System
- Ground Tissue System
- Vascular Tissue System
- Dicotyledonous Root
- Monocotyledonous Root
- Dicotyledonous Stem
- Monocotyledonous Stem
- Isobilateral (Monocotyledonous) Leaf
- Dorsiventral (Dicotyledonous) Leaf
- Vascular Cambium
- Cork Cambium
- Secondary Growth in Roots
Structural Organisation in Animals
- Introduction of Structural Organisation in Animals
- Epithelial Tissue
- Connective Tissue
- Muscular Tissue
- Neural Tissues
- Earthworm - Lampito Mauritii
- Morphology of Earthworm
- Anatomy of Earthworm
- Morphology of Cockroach
- Anatomy of Cockroach
- Morphology of Frog
- Anatomy of Frog
- Organ and Organ System
Cell : the Unit of Life
- Cell: Structural and Functional Unit of Life
- The Invention of the Microscope and the Discovery of Cell
- Cell Theory
- Organisms Show Variety in Cell Number, Shape and Size
- Prokaryotic Cells
- Cell Envelope and Its Modifications
- Ribosomes and Inclusion Bodies
- Structure of Prokaryotic and Eukaryotic Cells
- Structure of the Cell > Plasma Membrane / Cell Membrane
- Structure of the Cell > Cell Wall: “Supporter and Protector”
- Endomembrane System
- Mitochondria - “Power House of the Cell”
- Plastids
- Ribosomes - "The sites of protein synthesis"
- Cilia and Flagella
- Centrosome and Centrioles
- Cytoskeleton
- Structure of the Cell > Nucleus: “Brain” of the Cell
- Microbodies
- Plant Cell Vs Animal Cell
Biomolecules
- How to Analyse Chemical Composition?
- Primary and Secondary Metabolites
- Biomacromolecules
- Polysaccharides
- Proteins
- Biomolecules in the Cell > Nucleic Acids
- Structure of Proteins
- Nature of Bond Linking Monomers in a Polymer
- Dynamic State of Body Constituents – Concept of Metabolism
- Metabolic Basis for Living
- The Living State
- Biomolecules in the Cell > Enzymes
- Enzymes - Chemical Reactions
- Enzymes - High Rates of Chemical Conversions
- Nature of Enzyme Action
- Factors Affecting Enzyme Activity
- Classification and Nomenclature of Enzymes
- Enzymes - Co-factors
- Biomolecules in Living System
- Chemical Constituents of Living Cells
- Carbohydrates
- Structure and Function of Lipids
Cell Cycle and Cell Division
Transport in Plants
- Introduction of Transport in Plants
- Movement of Water, Gases and Nutrients
- Cell to Cell Transport
- Comparison of Different Transport Processes
- Concept of Plant-water Relations
- Water Potential (ψ)
- Osmosi
- Introduction of Long Distance Transport of Water
- Plants Absorb Water
- Water Movement up a Plant
- Concept of Transpiration
- Transpiration - Transpiration and Photosynthesis – a Compromise
- Uptake of Mineral Ions
- Transport of Mineral Ions
- Phloem Transport - Flow from Source to Sink
- Phloem Transport - Pressure Flow Or Mass Flow Hypothesis
- Structure of Stomatal Apparatus
- Diffusion of Gases
- Transport in Plants (Numericals)
Photosynthesis in Higher Plants
- Experiments on Photosynthesis
- Where Does Photosynthesis Take Place?
- Pigments Are Involved in Photosynthesis
- Light-Dependent Phase of Photosynthesis
- Electron Transport
- Electron Transport - Photolysis / Splitting of Water
- Electron Transport - Cyclic and Non-cyclic Photo-phosphorylation
- Electron Transport - Chemiosmotic Hypothesis
- Primary Acceptor of CO2
- The Calvin Cycle
- The C4 Pathway
- Photorespiration
- Factors Affecting Photosynthesis
- Photosynthesis as a Mean of Autotrophic Nutrition
- Chloroplast Structure
- Site of Photosynthesis
- Light-Dependent Phase of Photosynthesis
- Photosynthesis Reaction
- Photochemical and Biosynthetic Phases of Photosynthesis
- Photosynthesis in Higher Plants (Questions)
Respiration in Plants
- Respiration in Plant
- Plants Breathe
- Phases of Respiration: Glycolysis
- Phases of Respiration: Fermentation
- Oxidation of Pyruvate
- Phases of Respiration: Tricarboxylic Acid Cycle (Citric Acid Cycle or Kreb’s Cycle)
- Phases of Respiration: Electron Transport System (Ets) and Oxidative Phosphorylation
- Respiratory Balance Sheet
- Amphibolic Pathways
- Respiratory Quotient (R.Q.)
- Exchange of Gases - in Plants
- Energy Relations - Number of ATP Molecules Generated
- Respiration in Plant
Mineral Nutrition
- Plant Mineral Nutrition
- Methods to Study the Mineral Requirements of Plants
- Elementary Idea of Hydroponics
- Criteria for Essentiality
- Macro and Micro Nutrients and Their Role
- Deficiency Symptoms of Essential Elements
- Toxicity of Micronutrients
- Mechanism of Absorption of Elements
- Translocation of Solutes
- Nitrogen Metabolism
- Soil as Reservoir of Essential Elements
- Nitrogen Cycle
- Biological Nitrogen Fixation
- Nitrogen to Ammonia Conversion and Nitrogenase
- Mineral Nutrition (Questions)
Plant Growth and Development
- Introduction of Plant Growth and Development
- Plant Growth Generally is Indeterminate
- Phases of Plant Growth
- Plant Growth Rate
- Conditions Necessary for Plant Growth
- Differentiation, Dedifferentiation and Redifferentiation
- Concept of Development
- Characteristics of Growth Regulators
- Discovery of Plant Growth Regulators
- Physiological Effects of Plant Growth Regulators
- Photoperiodism
- Vernalisation
- Tropic Movements in Plants
- Plant Growth and Development (Questions)
Breathing and Exchange of Gases
- Introduction of Breating and Exchange of Gases
- Respiratory Organs
- Human Respiratory System
- Respiratory Volumes and Capacities
- Exchange of Gases
- Transport of Gases - Transport of Oxygen
- Transport of Gases - Transport of Carbon Dioxide
- Regulation of Breathing / Respiration
- Disorders of Respiratory System
- Breating and Exchange of Gases (Questions)
- Mechanism of Breathing
Body Fluids and Circulation
- Fluids in Our Body
- Composition of Blood > Plasma (The Liquid Portion of Blood)
- Blood Transfusion and Blood Groups (ABO and Rh system)
- Composition of Blood > Cellular Elements: Blood Platelets (Thrombocytes)
- Lymph and Lymphatic System
- Human Circulatory System
- Cardiac Cycle
- Electrocardiograph (ECG)
- Types of Closed Circulation
- Regulation of Cardiac Activity
- Disorders of Circulatory System
- Cardiac Output
- Compatibility of Antigen
- Body Fluids and Circulation (Questions)
Excretory Products and Their Elimination
- Human Excretory System
- Function of the Kidney - “Production of Urine”
- Function of the Tubules
- Mechanism of Concentration of the Filtrate
- Regulation of Kidney Function
- Micturition
- The Excretory Organs
- Common Disorders of the Urinary System
- Modes of Excretion: Ammonotelism, Ureotelism, and Uricotelism
- Modes of Excretion: Ammonotelism, Ureotelism, and Uricotelism
- Modes of Excretion: Ammonotelism, Ureotelism, and Uricotelism
- Osmoregulation
- Dialysis and Artificial Kidney
- Introduction of Excretory Products and Their Elimination
Digestion and Absorption
- Introduction of Digestion and Absorption
- Alimentary Canal
- Digestive Glands
- Digestion of Food
- Absorption of Digested Products
- Nutritional and Digestive Tract Disorders
- Role of Digestive Enzymes and Gastrointestinal Hormones
- Peristalsis, Digestion, Absorption and Assimilation of Proteins, Carbohydrates and Fats
- Digestion and Absorption Questions
- Calorific Values of Proteins
- Calorific Values of Carbohydrates
- Calorific Values of Fats
- Egestion of Food
Locomotion and Movement
- Introduction of Locomotion and Movement
- Types of Movement
- Muscles
- Structure of Contractile Proteins
- Mechanism of Muscle Contraction
- Skeletal System
- Joints and Its Classification
- Disorders of Muscular and Skeletal System
- Locomotion and Movement (Questions)
Neural Control and Coordination
Chemical Coordination and Integration
- Introduction of Chemical Coordination and Integration
- Human Endocrine System
- The Hypothalamus
- Pituitary Gland or Hypophysis Gland
- The Pineal Gland
- Thyroid Gland
- Parathyroid Gland
- Thymus Gland
- Adrenal Gland (Suprarenal Gland)
- Pancreas (Islets of Langerhans)
- Testis
- Ovary
- Hormones of Heart, Kidney and Gastrointestinal Tract
- Mechanism of Hormone Action
- Role of Hormones as Messengers and Regulators
- Hypo and Hyperactivity and Related Disorders
- Chemical Coordination and Integration (Questions)
Maharashtra State Board: Class 8
Bacteria:
Bacteria are very tiny organisms, usually between 1 mm and 10 mm in size. They are unicellular, meaning they have only one cell and can live independently or as parasites. Sometimes, bacteria group together and form colonies. Bacterial cells are prokaryotic, which means they have a cell wall but do not have a distinct nucleus or organelles like more complex cells do. They reproduce through a simple process called binary fission, where one cell divides into two. Under favourable conditions, bacteria can grow and multiply very quickly, doubling their number every 20 minutes.
Some Bacteria
