Notes and Study material for Exams
–2/”>a >DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> Fermentation Which of the following is the most efficient type of respiration? (A) Aerobic respiration (B) Anaerobic respiration (C) Photosynthesis (D) Fermentation Which of the following is the equation for aerobic respiration? (A) C6H12O6 + 6O2 â 6CO2 + 6H2O + ATP (B) C6H12O6 + 2ADP … Read more
The Building Blocks of Life: Macronutrients Essential for Plant Growth Plants, the foundation of our ecosystems and food systems, are remarkable organisms capable of converting sunlight into energy through photosynthesis. This process, however, requires a complex interplay of various elements, including those we call macronutrients. These essential nutrients, absorbed from the soil and air, play … Read more
Preparation of Oxygen Oxygen Oxygen is prepared in lab generally in two ways either by the application of heat or no application of heat. Using heat: Oxygen in lab is prepared by heating the mixture of powdered potassium chlorate and manganese dioxide in the ratio 4:1 in a hard glass test tube. The oxygen gas … Read more
Combustion and Incineration: A Comprehensive Overview Combustion and incineration are two closely related processes that involve the rapid chemical reaction between a substance and an oxidant, typically oxygen, producing heat and light. While both processes involve burning, they differ in their applications, objectives, and environmental implications. This article delves into the intricacies of combustion and … Read more
Compounds are defined as substances composed of two or more different Elements that are chemically combined. Both salt and water are compounds. Some important chemical compound and their uses are as follows:- NaCl sodium chloride (table salt, used in solutions for contact lens) ZnO zinc oxide (used in some sunscreens and diaper rash ointment) NaF … Read more
–2/”>a >DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> Blood makes up about 8% of the human body weight. It contains erythrocytes, leucocytes, thrombocytes (platelets) and plasma. The volume Percentage of all blood cells in the whole blood is about 45% of adults (hematocrit). The rest consists of liquid plasma (e.g. water, plasma proteins, electrolytes … Read more
The Invisible Shield: Composition of the Atmosphere and Its Vital Role The Earth’s atmosphere, a seemingly invisible blanket enveloping our planet, plays a crucial role in sustaining life. It acts as a protective shield, regulating temperature, filtering harmful radiation, and facilitating weather patterns. Understanding the composition of this vital layer is essential for comprehending its … Read more
Respiratory System Introduction Red blood cells are like trucks that transport cargo on a highway system. Their cargo is Oxygen, and the highways are blood vessels. Where do red blood cells pick up their cargo of oxygen? The answer is the lungs. The lungs are organs of the respiratory system. The respiratory system is the … Read more
An Atmosphere is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body. Many of the planets in this Solar System have atmospheres, but none that we know of have an atmosphere quite like ours – one that can support life. The … Read more
Unveiling the Mysteries of the Deep: A Journey into Oceanography The Earth, a vibrant tapestry of life and landscapes, holds within its embrace a vast and enigmatic realm â the ocean. Covering over 70% of our planet’s surface, this watery expanse is a cradle of biodiversity, a regulator of climate, and a source of countless … Read more