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Respiration and Circulation — Class 12 Maharashtra HSC Biology revision notes

A 9-page visual revision sheet for Respiration and Circulation, written for Class 12 Maharashtra HSC Biology. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.

What this Respiration and Circulation sheet covers

• Respiration, the energy conversion
• Gaseous exchange in plants
• Respiratory surfaces across animals
• Human respiratory tract: upper
• Human respiratory tract: lower
• The diaphragm
• Four processes make up respiration
• Breathing: an active pressure pump
• Lung volumes and capacities
• External respiration: gas exchange at alveoli
• Oxygen transport
• Bohr effect vs Haldane effect
• Bohr effect
• Haldane effect
• Carbon monoxide poisoning
• Carbon dioxide transport, three routes
• Chloride shift (Hamburger's phenomenon)
• Cellular respiration and its ATP
• Regulation of breathing
• Respiratory disorders
• Emphysema
• Chronic bronchitis
• Asthma
• Occupational disorders
• Transportation in organisms
• Open vs Closed circulation
• Open (Arthropods, most Molluscs)
• Closed (Annelids, Cephalopod molluscs, all Vertebrates)
• Single vs Double circulation
• Single (fish)
• Double (birds, mammals)
• Blood, what it's made of
• Blood, composition
• Erythrocytes (RBCs)
• The five leucocytes, by proportion
• Neutrophils (~70%)
• Lymphocytes (25-30%)
• Monocytes (3-5%)
• Eosinophils (1-3%) & Basophils (0.5-1%)
• Platelets and clotting
• Blood clotting cascade
• Thromboplastin
• Prothrombin → Thrombin
• Fibrinogen → Fibrin
• Heart, external anatomy
• Heart, internal structure and valves
• Conducting system of the heart
• SA node
• AV node
• Bundle of His → Purkinje fibres
• The cardiac cycle, 0.8 sec
• Cardiac output
• Artery, Vein, Capillary
• Artery
• Vein
• Capillary
• Blood pressure
• Blood pressure, three named ranges
• Vessel disorders
• Coronary Artery Disease
• Angina Pectoris
• Angiography / Angioplasty
• ECG, the three waves
• Lymphatic system
• Abbreviations
• Traps that cost marks
• Tricks that save time

Open the full Respiration and Circulation sheet →Free, works offline, no account needed. All 9 pages, plus a study plan built around your own exam dates.

How CapCompass uses this sheet

These notes are not a standalone PDF. CapCompass plans Biology chapter by chapter against your real exam dates and free hours, and when the plan reaches Respiration and Circulation the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.

More Biology Class 12 revision notes

• Biodiversity, Conservation and Environmental Issues
• Biotechnology
• Control and Co-ordination
• Ecosystems and Energy Flow
• Enhancement of Food Production
• Human Health and Diseases
• Inheritance and Variation
• Molecular Basis of Inheritance
• Organisms and Populations
• Origin and Evolution of Life
• Plant Growth and Mineral Nutrition
• Plant Water Relation
• Reproduction in Lower and Higher Animals
• Reproduction in Lower and Higher Plants