How is water transported to the top of a tall tree?

Question

the processes and where it occurs to able this to happen?

=]

Answer 1

the reason behind it is the capillary action of water as it adheres to the walls of the xylem vessels. xylem vessels are just one type of vascular bundles found on dicots, alongside it is the phloem. the xylem is responsible for transporting water while the phloem transports food and nutrients. for dicots, secondary growth of vascular bundles develop thus making dicots have primary and secondary xylem and phloem vessels, which caters to the bulky and big bodies of most dicots such as trees.

hope this answers your question :D

Answer 2

Here are the processes involved in water circulation:

1. Root pressure ---> roots are abosorbing minerals/ions from the soil. Because of the high concentrations of solutes inside the roots, water also comes inside (osmosis). Now, the buildup of water pushes the upper portion to rise up, which is root pressure.

2. Transpiration ---> Root pressure is not enough to transport water upwards. When water escapes from leaves by the means of transpiration, this creates the negative pressure (like a straw), forcing the water in the roots to rise upwards.  

3. For the water molecules to transport well in the xylem, water molecules near the xylem wall tend to stick/bind to it which is adhesion, and water molecules also attract/hold to eah other. This combination helps the water keep intact in the vessel.

Answer 3

Water fromt the soil solution enters root hairs by osmosis. a strong suction force known as transpiration pull pulls up the column of water up the xylem from the roots.