Topics
Introducing Biology
- Growth of Biology
- Branches of Biology
- Applied Biology
- Study of Biology Helps Us in Many Ways
- Study of Biology Helps Us in Many Ways
Basic Biology
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 and Eukaryotic Cell
- Cell Organelles
- Structure of the Cell > Plasma Membrane / Cell Membrane
- Structure of the Cell > Cell Wall: “Supporter and Protector”
- Structure of the Cell > Cytoplasm: “Area of Movement”
- Endoplasmic Reticulum (ER)
- Ribosomes - "The sites of protein synthesis"
- Mitochondria - “Power House of the Cell”
- Golgi Apparatus - "The delivery system of the cell"
- Lysosome - “Suicidal Bag”
- Centrosome and Centrioles
- Plastids
- Non-living Substances Or Cell Inclusion
- Structure of the Cell > Nucleus: “Brain” of the Cell
- Plant Cell Vs Animal Cell
- Protoplasm
- Every Activity of a Living Organism is the Outcome of Cellular Activity
Tissues : Plant and Animal Tissues
- Tissues - “The Teams of Workers”
- Plant Tissues
- Meristems or Meristematic Tissues
- Permanent Tissue
- Protective 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)
- Animal Tissues
- Epithelial Tissue
- Connective Tissue
- Muscular Tissue
- Nervous Tissue
Flowering Plants
The Flower
Pollination and Fertilization
- Self-pollination
- Cross-pollination
- Artificial Pollination
- Fertilization in Plants
Plant Physiology
Seeds - Structure and Germination
- Classification of Seeds
- Structure of a Dicotyledonous Seed
- Structure of Monocotyledonous Seed
- Some Experiments on Germination
- Germination in Some Common Seeds
- The Seedling
Respiration in Plants
- Glycolysis
- Electron Transport System (Ets) and Oxidative Phosphorylation
- Tricarboxylic Acid Cycle (Citric Acid Cycle or Kreb’s Cycle)
- Phases of Respiration: Pyruvate Oxidation (Link Reaction)
- Fermentation
- Production of ATP
- Respiration Vs. Burning (Combustion)
- Respiration in Plant
- Experiments on Respiration in Plants
- Respiration and Photosynthesis
- Respiration in Animals
Diversity in Living Organisms / Eco Systems
Five Kingdom Classification
- Introduction of Biological Classification
- Concept of Species
- Two Kingdom Classification
- Three Kingdom Classification
- Four Kingdom Classification
- Five Kingdom Classification
- Kingdom Monera
- Kingdom Protista
- Kingdom Fungi
- Kingdom Plantae
- Kingdom Animalia
- Differences Between Plantae (Plants) and Animalia (Animals)
- Sub-division Algae
- Cryptogams > Division II- Bryophytes
- Cryptogams > Division III- Pteridophytes
- Phanerogams > Division I-Gymnosperms
- Phanerogams > Division II- Angiosperms
- Phylum: Porifera
- Phylum: Cnidaria/Coelenterata
- Phylum: Platyhelminthes
- Invertebrate: Phylum Nematoda
- Phylum: Annelida
- Phylum: Arthropoda
- Phylum: Mollusca
- Phylum: Echinodermata
- Subphylum: Vertebrata/Craniata
- Invertebrata and Vertebrata
- Nomenclature
- Taxonomy and Systematics
Economic Importance of Bacteria and Fungi
Human Anatomy and Physiology
Nutrition
- Nutrients and Nutrition
- Food and Its Types
- Component of Food
- Carbohydrates
- Fats (Lipids)
- Proteins
- Component of Food: Minerals
- Vitamin and Minerals
- Water
- A Balanced Diet
- Deficiency Diseases
- Diseases Due to Deficiency of Carbohydrates
- Diseases Due to Deficiency of Fats
- Diseases Due to Deficiency of Proteins
- Diseases Due to Deficiency of Vitamin
- Diseases Due to Deficiency of Minerals
Digestive System
- Need for Digestive System
- Human Digestive System
- The Teeth and Its Structure
- The Salivary Glands
- Swallowing and Peristalsis
- The Food Pipe/Oesophagus
- The Stomach
- The Small Intestine
- Absorption of Food
- The Large Intestine
- Assimilation of Food
- Human Digestive System
- Experiments on Digestion
- Test for Carbohydrates/Starch
- Test for Protein
- Test for Fats
Skeleton - Movement and Locomotion
Skin - "The Jack of All Trades"
- The Skin
- Structure of the Skin
- The Skin Proper
- Derivation of the Skin
- Skin and Heat Regulation of Body
The Respiratory System
- Production of ATP
- Parts of Respiration
- Capacities of the Lungs
- Inspired Air Vs. Expired Air
- Hypoxia and Asphyxiation
- Experiments on Breathing and Respiration
Health and Hygiene
Hygiene - [A Key to Healthy Life]
- Hygiene
- Types of Hygiene: Personal Hygiene
- Types of Hygiene: Public Hygiene (Community)
- Vector Borne Diseases
- Control of Disease Carriers (Vectors)
- Contamination of Water and Water Borne Diseases
- Waterborne Diseases Caused by Bacteria
- Waterborne Diseases Caused by Virus
- Protozoan Diseases
- Health
Diseases : Cause and Control
Aids to Health
- Types of Hygiene: Personal Hygiene
- Types of Hygiene: Public Hygiene (Community)
- Immunity
- Defence System in Our Body: Local Defence System
- Antiseptics and Disinfectants
- Antibiotics
- Sulphonamide Group of Medicines
Health Organisation
- Common Health Problems in India
- Categories of Health Organisation
- International Bodies: Red Cross
- International Bodies: WHO (World Health Organisation)
Waste Generation and Management
- Waste and Its Categories
- Methods of Safe Disposal of Waste
Vegetative Propagation
Biotechnology Applications
Estimated time: 3 minutes
CBSE: Class 12
Key Points: Protozoan Diseases
- Malaria is caused by Plasmodium sp. (P. vivax, P. malariae, P. falciparum) and spreads through a female Anopheles mosquito bite.
- Sporozoites enter the human body, multiply in liver cells, then attack and rupture RBCs.
- Rupture of RBCs releases haemozoin toxin, causing chills and high fever every 3-4 days.
- Plasmodium needs two hosts - humans (asexual stage) and female Anopheles mosquitoes (sexual stage).
- Mosquito picks up gametocytes from an infected person → fertilisation in the mosquito's intestine → sporozoites reach the salivary glands → injected into the next human.
- Amoebiasis is caused by Entamoeba histolytica; houseflies transmit parasites from faeces to food/water.
- Symptoms of Amoebiasis - constipation, abdominal pain, cramps, and stools with mucous and blood clots.
