Cotinine is a byproduct of nicotine, which is found in tobacco. How  long cotinine can stay in your urine depends upon the amount of  tobacco you have smoked and how many yeâ¦ars you have been smoking  for. Therefore, cotinine could stay in your urine for as little as  2 days or as much as 3 months. Answered.
In vascular plants, phloem is the living tissue that carries organic nutrients (known as photosynthate), in particular, sucrose, a sugar, to all parts of the plant where needed.In trees, the phloem is the innermost layer of the bark, hence the name, derived from the Greek word ÏÎ»Î¿Î¹ÏÏ (phloios) meaning bark.n vascular plants, phloem is the living tissue that carries organic nutrients (known as photosynthate), in particular, sucrose, a sugar, to all parts of the plant where needed.
What drives phloem transport? Lower water potential in the phloem; water flows from xylem to phloem and creates a pressure gradient that drives translocation of sugar What is the exact process by which sugar moves from source companion cells to sink companion cells (aka pressure flow model) Sugar is loaded into the phloem and water follows by osmosis due to the high pressure gradient. Then sugar is unloaded from phloem and water follows by osmosis due to a low pressure gradient.