Biology notes for competitive exams cover a wide range of topics, including genetics, ecology, evolution, anatomy, and physiology. These notes typically focus on the most important and frequently tested concepts, such as cell biology, molecular biology, and biochemistry.
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The liver is one of the most important organs in our body. It is big, reddish-brown, and sits on the right side of our belly. The liver helps clean our blood, store energy, and digest food. In this blog, we will learn about the liver’s parts (anatomy), how it works (functions), and common liver diseases. … Read more
The human arm skeleton is a very important topic in General Science and Biology for exams like SSC, Banking, RRB NTPC, UPSC, and many state-level exams. Our arm helps us do many daily activities like writing, lifting, and throwing. But have you ever wondered how it works? It is all because of the strong bones … Read more
The lower limb, or the leg, is made up of strong bones that help us stand, walk, run, and jump. In this blog post, we will learn about the major bones of the lower limb, based on the NCERT syllabus. Knowing these bones is very important for competitive exams like SSC, Banking, RRB NTPC, UPSC, … Read more
The human vertebral column, also called the backbone or spine, is a very important part of our body. It helps us stand straight, bend, and move easily. Without it, our body would be floppy like a jellyfish! In this blog post, we will explain the human vertebral column in a very simple way. This topic … Read more
Plants need food to grow, just like us! But instead of eating with their mouths, they absorb special nutrients from the soil. These nutrients help plants grow tall, make green leaves, form flowers, and produce fruits. In this NCERT-based note, we’ll learn about the macronutrients (needed in large amounts) and micronutrients (needed in small amounts) … Read more
Understanding the role of nutrients in plant growth is just as important as knowing the ingredients in a recipe. Just like we need carbohydrates, proteins, and fats to grow and stay healthy, plants also need certain nutrients. These are called plant nutrients, and they are divided into macronutrients and micronutrients. This blog post will focus … Read more
Micronutrients may be needed in small amounts, but they play a big role in healthy plant growth and development. These essential elements—such as iron, zinc, manganese, copper, boron, molybdenum, chlorine, and nickel—support critical functions like enzyme activation, photosynthesis, and nutrient balance. Without them, plants can suffer from stunted growth, poor yield, and visible deficiency symptoms. … Read more
Understanding how plants grow is very important, especially for exams like SSC, RRB NTPC, UPSC, and state-level tests. One key topic is essential nutrients—the building blocks that help plants live, grow, and produce food. Let’s explore which nutrients plants get from water and soil, and how these help in their growth. What Are Nutrients? Nutrients … Read more
Just like humans need food to grow strong and stay healthy, plants also need special nutrients to grow, make food, and stay green. These important plant nutrients come from the soil, air, and water. Without them, plants can’t grow well or make fruits and flowers. Scientists have found that there are 17 essential nutrients that … Read more
Understanding science doesn’t have to be hard! Today, we’ll break down a very important biology topic — Cytokinesis — in a way that’s easy and fun to learn. This concept is often asked in exams like SSC, RRB NTPC, UPSC, and state-level exams, especially under general science or biology sections. Let’s break it down in … Read more
Understanding how cells divide is very important in biology — especially if you’re preparing for competitive exams. One of the final stages of cell division is called Telophase. Whether it’s Mitosis (simple cell division) or Meiosis (division to form sex cells), Telophase plays a big role in wrapping things up. Let’s break it down in … Read more
The M Phase or Mitotic Phase is the most exciting part of the cell cycle. It’s the stage where one cell becomes two new cells! This process is very important in General Science and is often asked in competitive exams like SSC, Banking, RRB NTPC, UPSC, and State-level exams. In the M Phase, the cell’s … Read more
Chromosomes are like tiny books inside every cell of our body. These special books carry all the instructions that tell our body how to grow, look, and work. Just like a recipe tells you how to cook, chromosomes tell your body how to make eyes, skin, hair, and more! They are made of DNA and … Read more
Anaphase is a very important step in how cells divide and make new cells. It happens during two types of cell division – mitosis and meiosis. In this stage, the chromosomes, which carry our DNA, are pulled apart and move to opposite sides of the cell. This helps make sure that each new cell gets … Read more
Prophase is the first step of mitosis, a process where cells divide to make new cells. In this stage, the cell gets ready to split. It is an important topic in Biology, especially for competitive exams like SSC, Banking, RRB NTPC, UPSC, and other state-level exams. Learning about prophase helps you understand how living things … Read more
Metaphase is a very important stage of cell division that helps cells grow and make new ones. In this stage, chromosomes line up in the center of the cell. Understanding metaphase is useful for science topics in exams like SSC, Banking, RRB NTPC, UPSC, and State-level tests. This complete summary of metaphase explains its key … Read more
The Alimentary Canal is like a food highway in our body. It starts at the mouth and ends at the anus. Along this path, food is digested, nutrients are absorbed, and waste is removed. To understand how this works, we must look at the walls of the alimentary canal, which are made of four main … Read more
Are you studying for SSC, RRB NTPC, Banking, UPSC, or any State-level exam? Then you must learn about cartilage! It is an important part of general science biology and is often asked in competitive exams. Cartilage is a special body tissue that is softer than bones but stronger than muscles. It helps our joints move … Read more
Cytokinins are special plant hormones that help plants grow by making their cells divide and multiply. Just like how babies grow bigger by adding new cells, plants also grow using these helpful chemicals. Cytokinins work mostly in the roots and move to other parts of the plant to help in growth, healing, and even making … Read more
Sickle Cell Anemia is a type of blood disease that affects how red blood cells work in our body. Normally, red blood cells are round and soft, but in this disease, they become hard and shaped like a sickle (a curved farming tool). This makes it harder for them to move through blood vessels and … Read more
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