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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 & Prevention 📑 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) 🫀 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? Structure, Function, and Importance in Cells 📑 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 🧬 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. 🧪 What is Mitochondria? Mitochondria (singular: mitochondrion ) are membrane-bound organelles that generate the majority of...

🧫 Cytoplasm – Structure, Components, Functions  📑 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. 🧬 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. 🧪 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...

🌿 What is Transpiration Pull? Transpiration pull is a vital mechanism in plants that facilitates the upward movement of water from the roots to the leaves. This process is driven by the evaporation of water from the leaf surfaces, primarily through structures called stomata . 🧬 How Does Transpiration Pull Work? Water Absorption : Roots absorb water from the soil through osmosis. Cohesion and Adhesion : Water molecules stick together (cohesion) and to the walls of xylem vessels (adhesion), forming a continuous column. Evaporation : Water evaporates from the mesophyll cells into the air spaces within the leaf and exits through the stomata. Negative Pressure : The loss of water creates a negative pressure (tension) that pulls more water into the leaf from the xylem. Upward Movement : This tension pulls the continuous column of water upward from the roots through the xylem vessels to the leaves. This entire process is passive, relying on physical forces rather than ...

🌿 What is Transpiration? Transpiration is the process by which plants lose water vapor from their aerial parts , mainly through small pores called stomata present in the leaves. It is a natural and essential part of a plant’s life, similar to how sweating works in humans. In simpler words: Transpiration is the evaporation of water from plant leaves, stems, and flowers into the atmosphere. 🧩 Types of Transpiration Type Description Stomatal Transpiration Loss of water through stomata; accounts for about 90% of water loss. Cuticular Transpiration Loss of water through the waxy cuticle covering the leaf surface. Lenticular Transpiration Loss of water through tiny openings called lenticels on stems and branches. 🌟 Importance of Transpiration Cooling Effect : Transpiration helps lower the temperature of the plant, just like sweating cools the human body. Water Movement : It creates a transpiration pull that assists in transporting water and minerals from roots to leaves. ...

 ❤️ Human Heart Heart is a vital muscular organ , about the size of clenched fist, that act as a pump, circulating blood throughout the body. It is the central organ of circulatory system responsible for delivering oxygen and nutrients to all cell while removing waste products like carbon dioxide. Other definition; The heart is a vital muscular organ that acts as the engine of the circulatory system, pumping blood throughout the body to deliver oxygen, nutrients, hormones, and remove wastes like carbon dioxide. Without the heart, life would not be possible, as every cell in the body depends on the constant supply of blood. Structure and Anatomy of the Heart Shape : Hollow, cone-shaped. Location : Lies in the center of the chest (mediastinum) but slightly tilted to the left side, behind the sternum. Size : Roughly the size of a person's fist. Weight : 250–300 grams in adults. 🧩 Heart Chambers The heart is divided into four chambers : Chamber Function Right Atrium R...

🌿 Biodiversity: The Richness of Life on Earth 📚 What is Biodiversity? Biodiversity is the term used to describe the enormous variety of life on Earth. It includes: All living organisms : plants, animals, fungi, and microorganisms. Genetic differences : even between individuals of the same species. Different ecosystems : like forests, oceans, deserts, and wetlands. Biodiversity is not just about the number of species — it’s also about how different species interact with each other and their environment, creating complex and balanced ecosystems. 🌎 The Three Levels of Biodiversity Genetic Diversity ➔ Variety of genes within a species (example: different breeds of dogs or types of rice). Species Diversity ➔ Variety of different species in a particular region or ecosystem (example: all the birds, plants, insects in a rainforest). Ecosystem Diversity ➔ Variety of habitats, ecosystems, and natural communities (example: coral reefs, grasslands, mountain ranges). ...

🌿 Plasmodesmata: The Secret Communication Tunnels of Plant Cells Table of content; what are plasmodesmata? what is desmotubule? plasmodesmata vs desmotubule? Plasmodesmata (singular ; plasmodesma) are microscopic channels which traverse the cell wlls of plant cells, and some algal cells, enabling transport and communication between them.  There are two forms of plasmodesmata: primary plasmodesmata, which are formed during cell division, and secondary plasmodesmata, which can form between mature cells. Similar structures called gap junctions, membrane nanotubes, interconnect animal cells, and stomules form between plastids in plant cells. A typical plant cell may have between 1,000 and 100,000 plasmodesmata connecting it with adjacent cells.  Plasmodesmata Structure Plasmodesmata is a tube linking one cell to another. Surrounding the open space of the tube is a membrane and running in the center is the desmotubule, which consists of tightly packed endoplasmic reticulum (ER)...