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1. www.bbc.co.uk › bitesize › guidesDiffusion (CCEA) test questions - GCSE Biology (Single ... - BBC

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   Diffusion (CCEA) Test questions. Diffusion is the random movement of a substance from a region of high concentration to a region of low concentration. Part of Biology (Single Science) Cells.

2. www.biologycorner.com › quiz › qz_diffusionQUIZ: DIFFUSION - The Biology Corner

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   1. Which of the following is NOT a type of passive transport? diffusion. osmosis. endocytosis. facilitated diffusion. 2. Chamber A contains 40% helium and Chamber B contains 20% helium. Chambers are connected by a tube the molecules are free to cross.

3. quizlet.com › 335759961 › diffusion-test-questionsdiffusion, test questions Flashcards - Quizlet

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   Study with Quizlet and memorize flashcards containing terms like facilitated diffusion, concentration gradient, passive transport and more.

4. mmerevise.co.uk › gcse-biology-revision › diffusionDiffusion Questions and Revision | MME

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   Show Answer. Question 2: Describe how the temperature, concentration gradient and surface area affect the rate of diffusion. [3 marks] GCSE Combined Science Foundation Combined Science Higher Biology Foundation Biology Higher AQA. Show Answer. Question 3: A bacteria can be modelled by a block 2 {μm}\times2 {μm}\times2 {μm}.

5. quizlet.com › test › diffusion-and-osmosis-practiceDiffusion and Osmosis - practice test | Quizlet

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   Choose matching definition. Osmosis is the diffusion of a solvent, such as water, through a selectively permeable membrane. It is important for determining the distribution of water in the body's fluid-containing compartments. Selective permeability is the property of a membrane that allows some substances to pass while excluding others.

6. www.oasisacademymediacityuk.org › uploaded › MediaAQA Biology Cell Transport Practice Exam Questions

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   Questions 1. Figure 1 shows a bottle of fruit cordial. Fruit cordial is a flavoured, coloured syrup that needs to be diluted with water. Usually, the cordial is poured in first and the water is poured in afterwards. Figure 1 a. When the water is added, the cordial particles move by diffusion to mix completely with the water. Define diffusion ...

7. People also ask

   How does diffusion happen in both solutions and gases?

   • Diffusion happens in both solutions and gases as the particles are free to move randomly. Diffusion of water is called osmosis. Substances move in and out of cells by diffusing across the cell membrane from areas of high concentrations to low concentrations.

   Diffusion Questions and Revision | MME

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   What does Difusion mean in chemistry?

   • Define difusion. Difusion is the spreading out/movement of particles (1) from an area of high concentration to an area of low concentration (1). b. Figure 2 shows a beaker of cordial and water before they have been mixed together. Complete Figure 2 to show the arrangement of the particles after difusion.

   AQA Biology Cell Transport Practice Exam Questions

   www.oasisacademymediacityuk.org/uploaded/MediaCityUK/Curriculum/Home_Learning_Journals/Science_GCSE_Closure_Pack/AQA_Biology_Diffusion_Exam_Questions.pdf

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   What is a good example of diffusion?

   • A good example of this is spraying a perfume bottle in a room: Diffusion is the term used to describe this movement and you will need to remember its definition: Diffusion is the net movement of particles from an area of higher concentration to an area of lower concentration.

   Diffusion Questions and Revision | MME

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   Does diffusion work in large multicellular organisms?

   • Diffusion does not work in large multicellular organisms. Unicellular organisms have a much smaller surface area to volume ratio than multicellular organisms. Diffusion is the random movement of a substance from a region of high concentration to a region of low concentration.

   Diffusion (CCEA) test questions - GCSE Biology (Single Science) - BBC

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   What is the difference between leakage and facilitated diffusion?

   • Leakage channels are always open and allow ions or water to move according to concentration gradients, while gated channels are controlled by chemical or electrical signals. Simple diffusion occurs directly through the lipid bilayer, while facilitated diffusion involves carrier or channel proteins.

   Diffusion and Osmosis - practice test - Quizlet

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   What is the difference between diffusion and osmosis?

   • Diffusion is the term used to describe this movement and you will need to remember its definition: Diffusion is the net movement of particles from an area of higher concentration to an area of lower concentration. Diffusion happens in both solutions and gases as the particles are free to move randomly. Diffusion of water is called osmosis.

   Diffusion Questions and Revision | MME

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8. www.shalom-education.com › wp-content › uploadsGCSE Diffusion | Questions - Shalom Education

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   GCSE Diffusion | Answers 1. net (1) high (1) low (1) energy (1) passive (1) 2. Water (1) Carbon dioxide (1) Oxygen (1) Sodium ions, polysaccharides, large proteins all not circled (1) 3. CO2 diffuses into the cell/s (1) where it is used for photosynthesis (1) 4. CO2 diffuses out of the cells (1) as it is a waste product of respiration / can be ...