What is Blood Introduction Blood is an essential component of the human body and plays an important role in maintaining normal body functions. It circulates continuously through the heart and blood vessels, transporting oxygen, nutrients, hormones and other substances to different parts of the body. At the same time, it carries carbon dioxide and metabolic wastes to organs such as the lungs and kidneys for removal. From a biological perspective, blood is a specialised connective tissue consisting of a liquid component called plasma and formed elements, which include red blood cells (RBCs), white blood cells (WBCs), and platelets. Each component has a specific structure and function and together they help maintain the body's internal balance, known as homeostasis. What Is Blood Blood is a fluid connective tissue that circulates through the heart and blood vessels. In a healthy adult, the total blood volume is generally around 4–6 litres, although it varies according to body size and...

RIGHT TO INFORMATION  (RTI)  INTRODUCTION In a democracy, citizens have an important role in understanding how the government works. People have the right to know how public money is spent, how decisions are made and how government departments perform their responsibilities. In India, one of the most important laws that supports this transparency is the Right to Information Act, 2005, commonly known as the RTI Ac t . The RTI Act gives eligible citizens a legal mechanism to seek information from public authorities. It aims to promote openness, accountability and responsible administration. Instead of depending only on rumours, advertisements or informal sources, citizens can use the RTI system to request information held by public authorities. RTI is therefore closely connected with democracy, good governance and citizen participation. ABOUT RTI  RTI stands for Right to Information. It refers to the legal right of citizens to obtain information from public authorities, su...

Hormones Introduction Hormones are chemical substances produced by special cells or glands in our body. They travel through the blood or act on nearby cells and tissues to control and coordinate many important activities. They act as messengers and carry signals to different parts of the body. Hormones help control many important functions such as growth, development, metabolism, digestion, reproduction, sleep, mood,  blood pressure, blood sugar, water balance and responses to stress. They are released into the blood and help different organs work properly and maintain balance in the body. The organs that produce and release hormones are called endocrine glands. Together, these glands form the endocrine system. Examples of important endocrine glands include the pituitary gland, thyroid gland, adrenal glands, pancreas, ovaries, testes, pineal gland, parathyroid glands, hypothalamus, and thymus. What Are Hormones A hormone is a chemical substance produced by specialized cells a...