The structure that controls loss of water vapour during transpiration is labelled? by Sunday | Sep 8 | Biology JAMB | 0 comments A. l B. ll C. lll D. lV Correct Answer: Option D – lV Users Also Read These:The mass of water vapour in a given volume of air is…The structure in the cell that controls the movement…A quantity of hot water at 100ºC is added to 400g of…The mass of water vapour in a given volume of air is…A tap supplies water at 26°C while another supplies…