The Living World
Taxonomy, nomenclature and classification.
Biology · Class 11
Work through the chapters in order, or continue with the one you need today.
Understand the ideaTry it yourselfReview what needs work
Learn this chapter
Cell: The Unit of Life
Prokaryotic and eukaryotic cells and organelles.
Biomolecules
Carbohydrates, proteins, lipids, nucleic acids and enzymes.
Cell Cycle and Cell Division
Mitosis, meiosis and their significance.
Photosynthesis in Higher Plants
Light reactions and the Calvin cycle.
Respiration in Plants
Glycolysis, Krebs cycle and the electron transport system.
Breathing and Exchange of Gases
Human respiratory system and gas transport.
Body Fluids and Circulation
Blood, the heart and the cardiac cycle.
Biological Classification
Compare major classification systems and the defining organisation of microbes, fungi, and acellular agents.
Plant Kingdom
Trace plant diversity from algae to flowering plants through life cycles and reproductive innovations.
Animal Kingdom
Classify animals through levels of organisation, body plans, embryology, and diagnostic features.
Morphology of Flowering Plants
Identify external plant organs, their modifications, and the descriptive language of flowers and fruits.
Anatomy of Flowering Plants
Relate plant tissues and internal organisation to growth, transport, and adaptation.
Structural Organisation in Animals
Connect animal tissues with the organisation of representative organ systems.
Plant Growth and Development
Explain plant growth mathematically and track the hormonal and environmental control of development.
Excretory Products and Their Elimination
Trace nitrogenous wastes through nephron filtration, reabsorption, secretion, and regulation.
Locomotion and Movement
Connect muscle contraction, skeleton, joints, and neural control to human movement.
Neural Control and Coordination
Follow information from receptors through neurons and central pathways to coordinated responses.
Chemical Coordination and Integration
Explain endocrine signalling, feedback control, and the coordinated roles of major hormones.