Structure of the plasma membrane The plasma membrane is mainly composed of: Phospholipids: These amphipathic molecules (having both a hydrophilic and a hydrophobic part) are organized into a double lipid layer. This structure gives the membrane its semi-permeable barrier property. Proteins: They are integrated into the lipid bilayer and perform various functions: transport of molecules, reception of signals, cellular recognition, etc. Carbohydrates: Linked to lipids (glycolipids) or proteins (glycoproteins), they play an important role in cell recognition and cellular interactions. Function of the plasma membrane Selective barrier: The plasma membrane allows the selective passage of certain molecules while preventing others. Transport: Membrane proteins provide passive (simple or facilitated diffusion) or active (pumps) transport of molecules across the membrane. Receiving signals: Membrane receptors allow the cell to detect and respond to signals from its environment. Cell recognition: Molecules present on the surface of the membrane allow cells to recognize and interact with each other. Maintenance of homeostasis: The plasma membrane helps maintain a stable intracellular environment by regulating exchanges between the cell and its environment. Properties of the plasma membrane Fluidity: The plasma membrane is not a rigid structure but rather fluid, which allows it to deform and change shape. Asymmetry: The two faces of the plasma membrane have different compositions, which gives the membrane polarity. Plasma membrane models Fluid mosaic model: This model, the most accepted, describes the membrane as a constantly changing mosaic of lipids and proteins.

Biology can be tricky as it contains lots of different components. This can be introduced slowly as I will provide support over lessons teaching you lots of information but a slow and steady pace giving you questions and answers along the way. Homework will also be provided this is to ensure that the lesson has stuck into your head and you have grasped it. If not there is no worries as things can take a while to learn but by the end you will feel a lot less stress about what you may be learning in biology. You may be finding one specific topic in biology hard and we can always go over that in the lesson or we can find stuff to look over in the lessons to keep your brains up to date for upcoming important exams.

Online and/or in-person classes in CABA and the northern area. With a complete virtual whiteboard, Very clear and delivery of material (in PDF and via WhatsApp), after each class, to study comfortably and without the need to take notes). Thorough, clear and thoughtful preparation for exams, midterms and finals. Wide range of hours available to suit your needs.

Hello! I am Gamze, a bioinformatician and evolutionary biologist working with bats! I completed my master's in a multidisciplinary field called as Earth System Science where Geology, Climate Science and Biology meet. I can teach secondary school, high school with IB, myp and dp curriculum, and university-level Biology.

Unlock your full potential in biology! I have obtained a bachelor degree in Biology at the University of Edinburgh, and hold a PhD in Tissue Engineering from the University of Zurich. Whether you're a high school student preparing for exams or a first-year bachelor's student looking to strengthen your foundation, I will tailor the private lessons to meet your needs. With clear explanations, engaging discussions, and practice exercises, you'll build confidence in topics ranging from cell biology and genetics to human physiology and immunology.

🌿 Passionate Biology Teacher | IGCSE A Level Specialist (AS & A2) 🌿 With a deep-rooted passion for biology and years of teaching experience, I specialize in guiding students through the intricacies of the IGCSE A Level curriculum. My approach combines interactive learning with real-world applications, making complex concepts accessible and engaging. 🔬 What I Offer: Customized lesson plans tailored to individual learning styles Hands-on experiments and practical demonstrations to reinforce theoretical knowledge Comprehensive exam preparation strategies to boost confidence and performance 📚 My Philosophy: I believe that every student has the potential to excel in science. My goal is to foster a love for biology while equipping students with the critical thinking skills they need for academic success and beyond. Join me in exploring the fascinating world of biology!

Biology, the study of life, is essential for understanding the natural world, fostering critical thinking, and preparing for diverse careers in healthcare, biotechnology, and environmental science. It equips students to tackle global challenges like climate change and pandemics while connecting with fields like chemistry and physics to open interdisciplinary opportunities. My tailored tutoring services provide engaging lessons and exam-focused strategies for students at all levels, helping you excel academically and beyond.

Biology is particularly a challenging subject because it requires you to first understand the enormous number of concepts and then memories it simultaneously. I'll teach biology through the slides I have prepared (ig/GCSE only) which are made from multiple resource, such as marking scheme, the book and examiner reports, this is beneficial as while I teach the concept it will come to the student the exact way the examiner wants the student to answer, and ofcource while learning the slides he will be Able to directly do the past papers as the notes are mastercopy of the source itself. Moreover, I'll make sure that each topic is fully understood by the student so there will be no room for error.

I offer private lessons to help you deepen your knowledge in biology, microbiology, cellular and biomolecular biology. Whether you are a high school student, a science student, or simply passionate about the subject, I adapt to your level and your specific needs. In my classes, we will cover fundamental theoretical concepts and practical applications together. My goal is to help you gain a deep understanding of the mechanisms of life, develop your analytical skills, and build your confidence to succeed in your scientific exams and projects. What you will find in my courses: - Understanding of the basics and advances of biology and microbiology - Analysis of cellular and molecular mechanisms - Scientific methodology and problem solving - Personalized support for homework and exams

Biological lessons taught by subject specialist, Master of science degree holder with 6 years teaching experience. Currently I am teaching in Middle east Europe and America I have successfully guided numerous students around the globe, from various grade levels and backgrounds to achieve their educational goals. •Currently, I am teaching: 1. GCSE students 2. IGCSE students 3. IB students 4. European School students 5. AS/A level students 6. American curriculum •Boost your understanding: Clear explanations, engaging activities, and practice exercises to solidify your knowledge. Master exam prep: Conquer past papers, tackle tricky concepts, and build confidence for upcoming tests. Individualized approach: Personalized curriculum and learning pace to fit your needs and goals. •Flexible scheduling: Online or in-person lessons to suit your busy schedule. Thanks for visiting my profile.

Having achieved an A in A-level Biology in 2023 I am here to provide students the tips to achieve top marks in essays, how to successfully answer 4,5,6 mark questions, and tips on how to memorise key words and the mark schemes. I am also here to breakdown complex topics into understandable concepts which are easier to remember. My online sessions will provide students a space outside of class time to receive guidance and revision tips whilst keeping a relaxed vibe, I know how stressful exam prep can be! AQA exam board only.

My online tutoring offers a wide range of subjects, taught by experienced and passionate instructors. In **Biology** and **Zoology**, we cover foundational concepts up to advanced topics, helping students understand life sciences deeply, from cell structure to ecosystems and animal behavior. Our **Math** classes span from basic arithmetic to higher-level topics, fostering strong problem-solving skills and logical reasoning. **English Grammar** sessions improve writing clarity, syntax, and vocabulary, building confidence in both academic and everyday language use. In **Environmental Science**, we explore ecosystems, sustainability, and human impact on the planet, encouraging a responsible and informed approach to environmental challenges. Finally, our **Yoga** classes offer physical and mental benefits, teaching postures, breathing techniques, and mindfulness for overall well-being. Our tutoring ensures an engaging, flexible learning experience, adapting to each student’s pace, from beginners to advanced learners, to build solid knowledge and confidence in each subject.

This tutoring class focuses on Biology, Cell Biology, and Microbiology, offering personalized support for students seeking to enhance their understanding of these subjects. Tailored for individual or small group settings, the class covers fundamental biological concepts, including the diversity of life, genetics, cell structure and function, and the role of microorganisms. Sessions emphasize interactive learning through discussion and problem-solving, helping students tackle challenging topics and apply concepts to real-world scenarios. With a focus on building a solid foundation and developing critical thinking skills, this class is ideal for high school and college students looking to strengthen their knowledge and prepare for exams with confidence. Whether you're struggling with specific areas or aiming to deepen your grasp of the material, this tutoring class provides the guidance and resources you need to succeed.

Objectives 1- Verification of Kirchhoff's current and voltage laws. 2- Verification Voltage Dividers 3- Verification of Thevenin's Theorem Kirchhoff's Current Law At any point (junction) in an electric circuit, the sum of currents flowing into that node is equal to the sum of currents flowing out of it. Kirchhoff's Voltage Law In any closed circuit, the summation of voltage sources (EMF) equals the summation of voltage drops Voltage drop is the voltage difference across a resistor's terminals Common DC Circuit Terms: • Circuit – a circuit is a closed loop conducting path in which an electrical current flows. • Path – a single line of connecting elements or sources. • Node – a node is a junction, connection or terminal within a circuit were two or more circuit elements are connected or joined together giving a connection point between two or more branches. A node is indicated by a dot. • Branch – a branch is a single or group of components such as resistors or a source which are connected between two nodes. • Loop – a loop is a simple closed path in a circuit in which no circuit element or node is encountered more than once Voltage Dividers • An electronic circuit that accepts a certain voltage input It produces a fraction of that input voltage as the output • The same current I flows through R1 and R2 Thevenin's Theorem • Thevenin theorem is an analytical method used to change a complex circuit into a simple equivalent circuit consisting of a single resistance in series with a voltage source.

Biology is the science of life and living beings. This subject allows us to dive deep into the intricate areas of basic life systems and different types of organisms, their structures and functions. Understanding Biology in my opinion requires 3 basic skills: 1) Listening 2) Interpretation 3) Connecting different pieces of information (joining the dots). In my sessions, we'll aim to develop on these 3 skills in order to have a thorough understanding of Biology and remembering the concepts as stories.