Pearson Edexcel GCE 8BI0/02 2022 Biology B Advanced Subsidiary PAPER 2: Core Physiology and Ecology

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Answer ALL questions. Write your answers in the spaces provided. Some questions must be answered with a cross in a box . If you change your mind about an answer, put a line through the box and then ... mark your new answer with a cross . 1 The diagram shows a magnified human red blood cell. (a) The actual diameter of this cell is 7.20µm. Calculate the magnification of this diagram. (2) Answer .............................................................. *P69497A0332* Turn over 3 (b) A regular sphere with a diameter of 7.20µm has a surface area of 162.86µm2. (i) Calculate the volume of a sphere with a diameter of 7.20µm. Use the formula V = 4 3 πr [Show More]

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