Explanation: Transpiration is the loss of water from the plant through evaporation at the leaf surface. It is the main driver of water movement in the xylem. Transpiration is caused by the evaporation of water at the leaf–atmosphere interface. Up to 90 percent of the water taken up by roots may be lost through transpiration as only a small amount of that water is used for growth and metabolism.
Prokaryotes do not have a nucleus, this is because a nucleus is a membrane-bound organelle. Prokaryotes do not have any membrane-bound organelles (including chloroplasts), however, they do have a cell membrane, as this is the site of diffusion and other types of transport.
