Course Description:

Welcome to our Biology Cambridge IGCSE course, meticulously tailored to help you conquer the intricacies of Topic 3: Movement In and Out Of Cells. This comprehensive course is specifically designed for both Code 0610 and Code 0970 syllabi, ensuring you’re well-prepared for the IGCSE Biology examination.

Course Highlights:

• Comprehensive Core and Supplement Objectives: Master all core and supplement objectives as outlined in the syllabus for theory (papers 1, 2, 3, 4). These objectives provide a solid foundation for exam success.
• Thoroughly Explained Experiments: Gain a deep understanding of practical experiments with detailed explanations. Notes summarize the method, results, interpretation, evaluation, reliability, and conclusion, enabling you to excel in paper 6 questions.

Course Outline & Objectives (Core and Supplement):

1. Diffusion (Lesson 1): Key objectives include:

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 concentration gradient), as a result of their random movement
   • State that the energy for diffusion comes from the kinetic energy of random movement of molecules and ions
   • State that some substances move into and out of cells by diffusion through the cell membrane.
   • Describe the importance of diffusion of gases and solutes in living organisms.

2. Osmosis (Lesson 2): Key objectives include:
   • Describe the role of water as a solvent in organisms with reference to digestion, excretion, and transport.
   • State that water diffuses through partially permeable membranes by osmosis.
   • State that water moves into and out of cells by osmosis through the cell membrane.
   • State that plants are supported by the pressure of water inside the cells pressing outwards on the cell wall.
   • Describe osmosis as the net movement of water molecules from a region of higher water potential (dilute solution) to a region of lower water potential (concentrated solution), through a partially permeable membrane.
   • Explain the effects on plant cells of immersing them in solutions of different concentrations by using the terms: turgid, turgor pressure, plasmolysis, flaccid.
   • Explain the importance of water potential and osmosis in the uptake and loss of water by organisms.
3. Active Transport (Lesson 3): Key Objectives include:
   • Describe active transport as the movement of particles through a cell membrane from a region of lower concentration to a region of higher concentration (i.e., against a concentration gradient), using energy from respiration.
   • Explain the importance of active transport as a process for the movement of molecules or ions across membranes, including ion uptake by root hairs.
   • State that protein carriers move molecules or ions across a membrane during active transport.

4. Experiment – Diffusion and Surface Area (Lesson 4): Key Objectives include:
   • To investigate the effect of surface area to volume ratio on diffusion.
5. Experiment – Diffusion and Temperature (Lesson 5): Key Objectives include:
   • To investigate the effect of temperature on diffusion.
6. Experiment – Diffusion and Distance (Lesson 6): Key Objectives include:
   • To investigate the effect of distance on diffusion.
7. Experiment – Osmosis and Water Flow (Lesson 7): Key Objectives include:
   • To demonstrate the effect of osmosis using Visking tubing.
8. Experiment – Plasmolysis (Lesson 8): Key Objectives include:
   • To observe plasmolysis in plant cells.
9. Experiment – Osmosis and Turgor (Lesson 9): Key Objectives include:
   • To model turgor in a plant cell using partially permeable Visking dialysis tubing.
10. Experiment – The Effects of Varying the Concentration of Salt Solution on Potato Tissue (Lesson 10): Key Objectives include:
    • To Investigate the effects on plant tissues of immersing them in solutions of different concentrations.

Course Benefits:

• Engage with meticulously crafted video lessons, providing comprehensive explanations of each lesson and experiment.
• Access downloadable summary study sheets that condense essential information, aiding your pursuit of an A* grade.
• Enhance your preparation with quizzes and assignments based on past papers to boost your confidence for the exam.
• Become part of a dynamic student group community, where you can interact with fellow learners and the course instructor, asking questions and sharing updates.

Unlock the captivating world of biology and prepare to excel in the IGCSE Biology examination through our “Biology Cambridge IGCSE Course – Code 0610 and 0970: “Movement In and Out of Cells” course.