Life Processes CBSE Class 10

Explore nutrition and its types, including autotrophic nutrition and through traffic nutrition, and learn how carbohydrates, proteins, and fats fuel respiration, circulation, and excretion.

Learn how carbon dioxide, water, and sunlight—the raw materials for photosynthesis—enable chlorophyll-driven synthesis of glucose and release of oxygen.

Engage in activities showing carbon dioxide, light, and chlorophyll essential for photosynthesis. Use leaf experiments, boiling water to stop enzymes, potassium hydroxide to absorb carbon dioxide, iodine detect starch.

Learn how chlorophyll in chloroplasts uses sunlight in light and dark reactions to split water and fix carbon dioxide into glucose, producing oxygen and ATP in the two-stage photosynthesis process.

Outlines the structure of the alimentary canal from mouth to anus, detailing digestive glands, saliva, gastric juice, enzymes, bile, and small intestine absorption.

Trace digestion from mouth with salivary amylase to stomach pepsin, then small intestine enzymes, bile emulsification, absorption, and water absorption in the large intestine, with cellulose not digested.

Explore how respiration in humans converts glucose to energy via glycolysis and aerobic and anaerobic pathways, with gas exchange from lungs to blood and diffusion via oxyhemoglobin.

Explore the structure of the heart, its chambers and valves, and follow the double circulation of oxygenated and deoxygenated blood through pulmonary and systemic pathways.

Explore arteries, veins, and capillaries, and learn how they carry blood through systemic and pulmonary circulation, with arteries carrying oxygenated blood away from the heart and capillaries enabling diffusion.

Explore how the kidney excretes metabolic nitrogenous waste and excess water via nephrons in the renal cortex and medulla, to urine carried by collecting ducts to renal pelvis and bladder.