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Fatiha - Dellys, AlgeriaRecently active£11
£11General definition of cell, cell structure, the difference between prokaryotic and eukaryotic cell
The cell, the fundamental unit of all living beings, is a complex structure composed of different elements working in harmony. The plasma membrane: the protective envelope The plasma membrane is a semi-permeable barrier that delimits the cell and separates it from its environment. It consists of a double layer of phospholipids, in which various proteins are integrated. These proteins play a crucial role in the transport of substances across the membrane, cell communication and cell recognition. The cytoplasm: the internal environment The cytoplasm is the aqueous medium inside the cell. It contains many organelles, inclusions, and the cytosol. The cytosol is the liquid part of the cytoplasm, rich in enzymes and molecules necessary for the chemical reactions of the cell. The Core: The Control Center The nucleus is a characteristic organelle of eukaryotic cells. It contains the genetic information of the cell in the form of DNA, organized into chromosomes. The nucleus is surrounded by a nuclear envelope pierced by nuclear pores that allow the exchange of molecules between the nucleus and the cytoplasm. Organelles: specialized factories Organelles are specialized structures present in the cytoplasm. Each of them fulfills a specific function: Mitochondria: Nicknamed the "power plants" of the cell, they are the seat of cellular respiration, a process that produces the energy needed by the cell. The endoplasmic reticulum: A network of membranes involved in the synthesis of proteins and lipids. The Golgi apparatus: A set of flattened sacs that modify, package, and distribute proteins and lipids synthesized by the endoplasmic reticulum. Lysosomes: Small vesicles containing digestive enzymes that break down unnecessary or damaged molecules. The cytoskeleton: the skeleton of the cell The cytoskeleton is a network of protein filaments that gives the cell its shape, allows it to move, and organizes its organelles. It is made up of three types of filaments: microfilaments, intermediate filaments, and microtubules. The differences between prokaryotic and eukaryotic cells There are two main types of cells: prokaryotic cells (bacteria) and eukaryotic cells (animals, plants, fungi). Prokaryotic cells are simpler and do not have a nucleus or membrane-bound organelles. Eukaryotic cells, on the other hand, are more complex and have a nucleus and many organelles.
Biology
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Jason - Kazan’, RussiaRecently active£54
£54"Game On: Mastering English through Video Game Analysis"Level up your English language skills and dive into the world of video games!
Course Description:_ Level up your English language skills and dive into the world of video games! In this unique course, you'll improve your reading, writing, and speaking abilities by analyzing the characters, storyline, and gameplay mechanics of a popular video game. Through interactive lessons, discussions, and activities, you'll: 1. Develop essential English language skills, including grammar, vocabulary, and pronunciation. 2. Analyze video game characters, motivations, and relationships to improve reading comprehension and critical thinking. 3. Examine the game's narrative structure, plot twists, and themes to enhance writing and storytelling skills. 4. Engage in discussions and debates about the game's mechanics, level design, and player experience to improve speaking and listening skills. 5. Cultivate problem-solving, critical thinking, and collaboration skills through game-inspired challenges and projects. _Course Objectives:_ - Improve English language proficiency - Develop critical thinking and analytical skills - Enhance creativity and self-expression - Foster collaboration and problem-solving skills - Build confidence in using English in everyday situations _Course Outline:_ Module 1: Introduction to English Language and Video Game Analysis - English language basics: grammar, vocabulary, and pronunciation - Analyzing video game characters and motivations Module 2: English Language Development through Character Analysis - English language skills: reading, writing, listening, and speaking - Examining character relationships, conflicts, and development Module 3: Narrative Structure and Gameplay Mechanics - Analyzing the game's storyline, plot twists, and themes - Understanding gameplay mechanics, level design, and player experience Module 4: Creative Expression and Self-Presentation - Writing and presenting: character backstories, game reviews, and walkthroughs - Building confidence: self-expression, feedback, and reflection _Target Audience:_ - English language learners - Video game enthusiasts - Individuals seeking to improve their critical thinking and analytical skills - Those looking to enhance their creativity and self-expression _Course Format:_ - Online lessons and discussions - Interactive activities and hands-on projects - Personalized feedback and support _Course Duration:_ - 12 weeks (3 months) Join the quest and power up your English language skills! Enroll in "Game On" today and start analyzing your way to language mastery!
English · Video games
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