AQA BIOLOGY
AS-level AQA BIOLOGY The photograph shows part of the cytoplasm of a cell. (a) (i) Organelle X is a mitochondrion. What is the function of this organelle? (1) (ii) Name organelle Y. (1) (b) This photograph was taken using a transmission electron microscope. The structure of the organelles visible in the photograph could not have been seen using an optical(light) microscope. Explain why. (2) (Total 4 marks)
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