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Biology Igcse Course Unit 3
Published 6/2026
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz, 2 Ch
Language: English | Duration: 2h 40m | Size: 2.92 GB
Movement Into and Out of Cells
What you'll learn
In this course students will learn exactly what they need to know for their Biology IGCSE exams. Students will learn about
1. Describe diffusion as the net movement of particles from a region of their higher concentration to a region of their lower concentration (i.e. down a concent[/center]
2. State that the energy for diffusion comes from the kinetic energy of random movement of molecules and ions
3. State that some substances move into and out of cells by diffusion through the cell membrane
4. Describe the importance of diffusion of gases and solutes in living organisms
5. Investigate the factors that influence diffusion, limited to: surface area, temperature, concentration gradient and distance
6. Describe the role of water as a solvent in organisms with reference to digestion, excretion and transport
7. State that water diffuses through partially permeable membranes by osmosis
8. State that water moves into and out of cells by osmosis through the cell membrane
9. Investigate osmosis using materials such as dialysis tubing
10. Investigate and describe the effects on plant tissues of immersing them in solutions of different concentrations
11. State that plants are supported by the pressure of water inside the cells pressing outwards on the cell wal
12. Describe osmosis as the net movement of water molecules from a region of higher water potential to a region of lower water potential
13. Explain the effects on plant cells of immersing them in solutions of diff. concentrations by using the terms: turgid, turgor pressure, plasmolysis, flaccid
14. Explain the importance of water potential and osmosis in the uptake and loss of water by organisms
15. Describe active transport as movement of particles across a membrane from low to high concentration using energy from respiration.
16. Explain the importance of active transport as a process for movement of molecules or ions across membranes, including ion uptake by root hairs
17. State that protein carriers move molecules or ions across a membrane during active transpor
Requirements
Access to a device to watch lessons - phone, tablet, or computer No textbook needed - everything is covered in the course
Description
This Biology course is structured specifically around the latest Cambridge iGCSE and GCE Biology syllabus, ensuring complete and accurate coverage of every objective students need to master for their examinations. Students preparing for AP Biology, IB Biology, or equivalent international curricula will also find this course highly valuable for building a thorough understanding of the theory component of their exams, as the core biological concepts covered are closely aligned across these specifications.
The course focuses onUnit 3: Movement Into and Out of Cells, one of the most concept-heavy and frequently examined units in the entire Biology course. This unit is notorious for catching students out - the definitions are precise, the concepts are easy to confuse, and the practical questions are among the most challenging in the whole paper. This course makes sure none of that catches you off guard.
Every syllabus objective is covered comprehensively, without overloading you with irrelevant material. The content is precise, focused, and directly aligned with what examiners expect - so you spend your time learning exactly what matters and nothing that does not. Throughout every lesson, real past paper questions are used to show you how this unit is examined, what a full-mark answer looks like, and the common mistakes that cost students marks every single year. You will know not just what to say, but how to say it - and equally importantly, what not to write.
The course builds strongexam technique alongside content knowledge, covering every question type across Papers 1, 2, 3 and 4 - from multiple choice and short answer to structured and extended response questions. Students leave this course knowing exactly how to approach any question on this unit regardless of how it is worded.
Every video lesson comes with adownloadable PDF resource that contains everything you need to know for that specific lesson - definitions, diagrams, key points and exam tips - all written and structured to match exactly what the syllabus requires. There is no need to open a textbook, search for revision guides, or look anything up online. Simply watch the lesson, download скачать the PDF, study from it, and go straight to past papers. Everything you need is right here in one place.
Thepractical component is a major focus of this course. Students are taken through seven core experiments that are widely known to be among the most challenging for students at this level - investigations intoDiffusion and Surface Area, Diffusion and Temperature, Diffusion and Distance, Osmosis and Water Flow, Plasmolysis, Osmosis and Turgor, andThe Effects of Varying Solution Concentrations on Plant Tissue. Each experiment is broken down thoroughly - covering the method, variables, expected results, and how to interpret and present data accurately. Students are specifically trained to approach and answer practical-based questions inPapers 5 and 6, developing the experimental skills and scientific reasoning needed to score highly on alternative-to-practical and practical assessment papers.
This course is ideal for students aiming for high achievement and A* grades in Biology examinations.
Who this course is for
IGCSE/ GCE Biology Students Preparing for External Exams