Multiple-choice (1 point) What process is the major driving force that moves water up a tree trunk? water pressure from the roots loss of oxygen from the leaves loss of carbon dioxide from the leaves evaporation of water from the leaves movement of sugars into the xylem
Nov 04, 2018 · Multiple-choice (1 point) What process is the major driving force that moves water up a tree trunk? water pressure from the roots loss of oxygen from the leaves loss of carbon dioxide from the leaves evaporation of water from the leaves movement of sugars into the xylem
Sep 12, 2016 · 1/1 points What process is the major driving force that moves water up a tree trunk ? 5 . ... The differences in stomata density gives it an advantage in the photosynthesis process . Share this link with a friend: ... Course Hero is …
Apr 15, 2013 · As trees sweat, they lose molecules. The density of molecules at stomata thus decreases. This lowers the pressure into even more negative one. The whole water column then gets sucked, which enables water to go up the tree. In other words, transpiration is the mechanism which stretches water on the top of trees, and enables water to move up the tree.
As explained by Derek Muller on Veritasium, the flow of water in trees involves complex physical phenomena including pressure, osmosis, negative pressure, capillarity and evapotranspiration. What seems simple will blow your mind!
Gravity! Basically, what trees do is hold on to water at the top of the xylem tube. Gravity then brings down most of the molecules. Only a few molecules remain on the top of the trees, hence creating immense negative pressures. At equilibrium, the variation of pressure compensates gravity.
Thus, in average, the net flow is a flow of water from right to left.
At the other end of the plant, water either moves out of the plant through the leaves’ stomata or diffuses into the photosynthetic cells and the spaces around them. This loss of water from the xylem at the far end allows water to flow up the xylem tubes, creating continuous water movement. In the phloem cells, fluids move in a somewhat similar ...
Water Movement. The movement of water from the roots to the leaves is a critical function in a plant’s life. The flow of water depends upon air pressure, humidity, adhesion, and cohesion. At sea level, air pressure can force water up the columns of xylem from the roots to a height of many feet.