“General Science” is the highest scoring as well as the most challenging section for all competitive exams. In this section, you will find important notes on three main subjects of General Science: Physics, Chemistry, Biology, etc.
You can Browse the Subject- wise General Science Notes here:
A zygote is the single, diploid cell formed when a sperm fertilizes an egg. In humans, it forms in the fallopian tube, begins rapid mitotic divisions (cleavage), and develops into a morula by day 3–4 and a blastocyst by day 5–6, typically implanting around day 6–7. The zygote is totipotent, meaning it can give rise … Read more
Blood pressure is a vital topic in competitive exams, especially in the Biology and General Science sections. This blog simplifies key concepts—normal range, types, causes, symptoms, and health risks—using exam-friendly language. Strengthen your preparation with accurate, concise, and clear explanations tailored for quick understanding and effective revision. Why Blood Pressure Matters ◾Blood pressure is a … Read more
The spleen is one of the most underrated yet crucial organs of the human body. Often overshadowed by more prominent organs like the liver or kidneys, the spleen plays a vital role in immunity and blood maintenance. For students appearing in competitive exams like UPSC, SSC, NEET, or other state-level tests, understanding the spleen’s structure … Read more
Blood is the vital fluid that sustains life, carrying oxygen, nutrients, hormones, and waste throughout the body. While red and white blood cells often take the spotlight, a lesser-known yet crucial component is blood plasma. Accounting for over 50% of total blood volume, plasma serves as the medium that supports and transports blood cells and … Read more
The nephron is the functional and structural unit of the kidney. Each human kidney contains about 1 to 1.5 million nephrons, and each nephron is responsible for the filtration of blood and formation of urine. Understanding the structure and function of each part of a nephron is crucial for exams like NEET, UPSC, SSC, RRB … Read more
Acids are one of the most important chemical substances in our daily life and industrial processes. From the sour taste of lemon to the acidic nature of gastric juices, acids play a crucial role in both biological and chemical systems. Understanding their properties is essential for competitive exams like SSC, UPSC, RRB, and various state … Read more
An alveolus (plural: alveoli) is a tiny air sac in the lungs where gas exchange takes place. It plays a crucial role in respiration, allowing oxygen to enter the blood and carbon dioxide to exit the body. Understanding the structure and function of alveoli is important not only for Biology exams from Class 6–12 but … Read more
Analgesics are one of the most commonly used medicines in everyday life, making them an essential topic in General Science for UPSC, SSC CGL, CHSL, RRB NTPC, State PSCs, and other competitive exams. Whether it’s a headache or a post-surgery pain, analgesics provide pain relief. This blog will help you understand the topic in a … Read more
Antacids are a crucial topic under “Chemistry in Everyday Life” and “Acids, Bases, and Salts”, often asked in UPSC, SSC, RRB NTPC, and State PSCs. Beyond their use in daily life, understanding how antacids work, and what led to better alternatives, helps answer MCQs, match-the-following, and conceptual questions in exams. Let’s understand everything about antacids … Read more
The human digestive system is a frequent topic in exams like UPSC, SSC, RRB NTPC, and State PSCs. Within this system, a small but vital structure called villi plays a key role in digestion and absorption of nutrients. Understanding the structure, function, and importance of villi can help in solving both MCQs and concept-based questions … Read more
The human digestive system is like a long, winding tube where food is processed, digested, and waste is removed. One important part of this system is the large intestine, and a key section of it is called the Transverse Colon. In this article, we’ll explore the Transverse Colon in an easy and exam-friendly way—perfect for … Read more
Bile juice is an important digestive fluid that helps in the digestion of fats. It is produced by the liver and stored in the gallbladder. Though it doesn’t contain enzymes, it plays a key role in breaking down fats into smaller parts, making them easier to digest. Let’s explore the composition of bile juice in … Read more
Gastric juice is a digestive fluid secreted by the stomach that plays a key role in breaking down food. It contains special chemicals and enzymes that help us digest proteins and kill harmful microbes. Understanding its composition is important for both science lovers and exam aspirants. Let’s break it down into simple parts! What is … Read more
Biotechnology is a powerful blend of biology and technology that uses living organisms to create useful products. From life-saving medicines to improved crops and eco-friendly fuels, its impact is everywhere. Let’s explore the core concepts and gain a complete understanding of what biotechnology is all about. What is Biotechnology? Biotechnology is a branch of science … Read more
Have you ever seen roots grow downward and shoots grow upward, no matter how you plant the seed?That’s because plants follow something very special called Geotropism! Let’s explore this amazing topic in a simple and exam-friendly way. What is Geotropism? Geotropism (also called Gravitropism) is a type of plant movement that happens in response to … Read more
Before we learn about Oxytocin, let’s understand what hormones are. ✅ What are Hormones?◾ Hormones are chemical messengers made by special glands in our body.◾ They travel through blood and control many body functions like growth, emotions, hunger, and more. ✔️ Don’t miss this: A beginner-friendly guide to hormones – Start here! ❤️ What is … Read more
Whether you’re preparing for SSC, RRB NTPC, UPSC, or any state-level exam, understanding basic biology topics like mucus can give you an extra edge. Though it may sound a bit “icky,” mucus plays a very important role in keeping our bodies safe and healthy. Let’s break this topic into simple parts for better understanding and … Read more
If you are preparing for SSC, RRB NTPC, UPSC, or State PSC exams, you must understand some basic science topics — and “Allotropes of Oxygen” is one of them. But don’t worry! We’ll break it down into simple parts. Let’s dive in! 🧠📘 What are Allotropes? ◾ Allotropes are different forms of the same element.🔹 … Read more
“Sleep is the golden chain that binds health and our bodies together.” — Thomas Dekker Melatonin is often called the “Sleep Hormone”, but its role in our body is much more than just helping us sleep. This post explains everything you need to know about melatonin in a simple way, perfect for your exam preparation. … Read more
Zinc is a metal that looks bluish-white in color. It is an important chemical element with the symbol Zn and atomic number 30. Zinc is not found in a pure form in nature. It is mostly found in minerals like sphalerite (zinc sulfide). 🔍 Just like iron, copper, and aluminium, zinc is also a useful … Read more
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