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8 (ii) A group of scientists studied the effect of poisoning by the metal cadmium.

They thought that the metal caused the ratio volume of nucleus to decrease. volume of cell The ratio is normally between 0.1 and 0.05 for this type of cell. Has the cell shown been poisoned with cadmium? Explain your answer. ............................................................................................................................................. ............................................................................................................................................. ........................................................................................................................................ [2] [Total: 5]

Š OCR 2011

SPECIMEN


B3 question 5 (2)