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(iv) State the function of EACH of the following structures:
Ribosomes ..............................................................................................................
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Golgi apparatus ..................................................................................................... DO NOT WRITE IN THIS AREA
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Rough endoplasmic reticulum ...............................................................................
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[3 marks]
(c) The structure and composition of the cell membrane govern cell transport, the model for
which is referred to as a fluid mosaic membrane (FMM) model. A beaker has a cell encased
by a cell membrane only. A solution containing water molecules (higher water potential
than in the cell), potassium ions (lower concentration than in the cell) and glucose (higher
concentration than in the cell) is poured into the beaker. With reference to the FMM model,
explain how these substances are taken up by the cell. DO NOT WRITE IN THIS AREA
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