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write a note on human brain?

Understanding the Human Brain: Structure, Function, and Importance The human brain is one of the most complex and powerful organs in the human body. It governs every function, thought, emotion, and memory that defines our existence. Weighing approximately 1.3 to 1.4 kilograms, this organ might be small in size, but it contains more than 86 billion neurons—each forming thousands of connections known as synapses. In this comprehensive article, we will explore the structure, functions, and significance of the human brain, as well as its role in health and disease. Table of Contents Introduction to the Human Brain Anatomy of the Human Brain Major Parts of the Brain Brain Lobes and Their Functions Neurons and Neurotransmitters How the Brain Communicates Key Functions of the Human Brain Brain and Nervous System Disorders of the Brain Keeping the Brain Healthy Conclusion Frequently Asked Questions (FAQs) 1. Introduction to the Human Brain The huma...

brain quiz with answers pdf

100+ brain quiz with answers pdf     Download Now

what is a chloroplast?

๐ŸŒฟ What is Chloroplast? – Structure, Function & Importance Explained Chloroplasts are one of the most essential organelles found in plant cells and some algae. These green structures play a key role in the process of photosynthesis, the method by which plants produce their own food. In this article, you’ll learn everything you need to know about chloroplasts—what they are, how they work, and why they matter in biology. ๐Ÿ“˜ Definition of Chloroplast A chloroplast is a double-membraned organelle found in plant cells and eukaryotic algae that conducts photosynthesis . It contains the green pigment chlorophyll , which captures light energy to convert carbon dioxide and water into glucose (sugar) and oxygen . ๐Ÿงฌ Structure of Chloroplast Chloroplasts have a complex internal structure that is vital for their function. Here's a breakdown: 1. Outer Membrane Smooth and permeable to small molecules. Acts as a protective covering. 2. Inner Membrane Less permeable and co...

Cardiovascular System MCQs pdf

Cardiovascular System MCQs pdf Table of content: 100+mcqs on cardiovascular system mcqs related to heart solved mcqs of cardiovascular system     Download Now

What is a Heart Attack? [Causes, Symptoms & Treatment 2025]

❤️ What is a Heart Attack? Causes, Symptoms, Treatment & Prevention ๐Ÿ“‘ Table of Contents What is a Heart Attack? Difference Between Heart Attack and Cardiac Arrest Causes of Heart Attack Signs and Symptoms of a Heart Attack Silent Heart Attack – What You Need to Know Risk Factors of Heart Attack Diagnosis of Heart Attack Treatment Options for Heart Attack Recovery After a Heart Attack How to Prevent Heart Attacks Conclusion Frequently Asked Questions (FAQs) ๐Ÿซ€ What is a Heart Attack? A heart attack , medically known as myocardial infarction , occurs when the blood flow to a part of the heart muscle is blocked , often by a blood clot or plaque in the coronary arteries. This blockage deprives the heart of oxygen, causing damage or death to the heart tissue. It is a medical emergency and requires immediate attention to restore blood flow and minimize permanent damage. ⚡ Difference Between Heart Attack and Cardiac Arrest Heart Attack =...

what is mitochondria?

๐Ÿ”ฌ What is Mitochondria? Structure, Function, and Importance in Cells ๐Ÿ“‘ Table of Contents Introduction to Mitochondria What is Mitochondria? Structure of Mitochondria Functions of Mitochondria in Cells Why is Mitochondria Called the Powerhouse of the Cell? Mitochondrial DNA and Inheritance Diseases Related to Mitochondria Mitochondria in Plant vs Animal Cells Interesting Facts About Mitochondria Conclusion ๐Ÿงฌ Introduction to Mitochondria Mitochondria are essential organelles found in nearly every eukaryotic cell , playing a crucial role in energy production , cellular respiration , and metabolic regulation . In simple terms, without mitochondria, our cells would not function properly. This article will answer the question "What is mitochondria?" by covering its structure , functions , importance , and much more. ๐Ÿงช What is Mitochondria? Mitochondria (singular: mitochondrion ) are membrane-bound organelles that generate the majority of...

what is cytoplasm?

๐Ÿงซ Cytoplasm – Structure, Components, Functions  ๐Ÿ“‘ Table of Contents What is Cytoplasm? Components of Cytoplasm Structure of Cytoplasm Functions of Cytoplasm Cytoplasm in Prokaryotes vs. Eukaryotes Importance of Cytoplasm for DPT Students Summary Table FAQ – Cytoplasm 1. ๐Ÿงฌ What is Cytoplasm? Cytoplasm is the gel-like, semi-fluid substance inside cells, excluding the nucleus. It plays a vital role in maintaining the cell’s shape , supporting organelles, and enabling essential biochemical reactions . 2. ๐Ÿงช Components of Cytoplasm 2.1 Cytosol The fluid portion of cytoplasm. Contains water, enzymes, salts, and organic molecules . Site of glycolysis and other enzymatic reactions. 2.2 Organelles (in eukaryotic cells) Mitochondria – ATP production Endoplasmic Reticulum (ER) – Protein/lipid synthesis Golgi Apparatus – Modifies and packages proteins Ribosomes – Protein production Lysosomes & Peroxisomes – Waste breakdown...