WAEC Biology 2010 Theory — Question 3
Question 3 of 23 from the West African Examinations Council (WAEC) Biology 2010 Theory paper, with the correct answer and a full explanation.
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1(c) Make a diagram 8-10 cm long of a flame cell and label fully. [6 marks]
Model answer
A flame cell (protonephridium) diagram should show: the nucleus, blind end, flagella (the beating flagella create the flow used in excretion), the lumen, and the tubule leading away from the cell. (Note: the source PDF for this diagram was not accessible for image extraction; only the textual description is provided.)
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