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 loss of water vapour through the aerial parts of…Water in plants is removed as water vapour through…The mass of water vapour in a given volume of air is…If the partial pressure of water vapour at 27°C is…A quantity of water at 20ºC is mixed with another…