Live Processes Lecture by Prashant Bhaiya

Introduction

Nutrition
- Definition: Obtaining and utilizing food by living organisms.
- Importance: Energy, growth, development, and repair of tissues.
- Types of Nutrition: Autotrophic (self-feeding) and Heterotrophic (depend on others for food)
Respiration
- Definition: Obtainment of energy in the form of ATP by breaking down glucose in the presence of oxygen (aerobic) or absence of oxygen (anaerobic)
- Types: Aerobic (with oxygen), Anaerobic (without oxygen)
- Process Explanation
Transportation
- Definition: Movement of substances synthesized or absorbed from one part to another in the body
- Components: Blood, blood vessels, heart
- Circulatory System: Systemic (Heart to body), Pulmonary (Heart to lungs)
Excretion
- Definition: Process by which organisms expel metabolic waste
- Human Excretory System: Kidneys, ureters, urinary bladder, urethra
- Functions of Kidneys: Waste removal, blood ionic composition regulation, production of hormones, blood pressure regulation
Transpiration in Plants
- Definition: Removal of excess water in the form of water vapor through stomata
- Components: Xylem (water & mineral transport from roots to leaves), Phloem (food transport from leaves to other parts) – Distinct Features:
- Xylem: Upward transport, dead elements
- Phloem: Bidirectional transport, living elements

Lymphatic System: Functions – fluid balance, fat transport, immune system support
Artificial Kidney (Dialysis): Process to remove waste from blood when kidneys fail
Plant Excretion: Various methods adopted by plants to expel waste