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COHESION THEORY / TRANSPIRATION PULL THEORY :-

this theory was proposed by henry and dixon in 1914.this theory states that a continous water column will be formed in the xylem due to the strong adhesive and cohesive forces. due to transpiration, the water potential will decrease in the leaf cells & a potential gradient will be developed in the leaf. therefore, water will move from xylem into the leaves, due to which water will rise up as a continuous column. the strong adesive force between xylem and wateris due to high affinity of ligno cellulose present in the walls of xylem...


so here is ur answer dont forget to give 5 stars.....

2006-12-14 11:09:27 · answer #1 · answered by Amirali 2 · 0 0

Plants have a tissue called xylem that transports water through them, somewhat similar to the way arteries and veins transport blood in animals. Capillary action is the property of water that allows it to move through this tissue, even against gravity. Capillary action consists mainly of the properties of adhesion (water molecules like to stick to each other) and cohesion (those water molecules also like to stick to other things), allowing the water to move through the xylem. Think about a paper towel - stick one corner of it in a bowl of water, and how much of the paper towel gets wet? That happens because of capillary action.

2006-12-14 10:45:13 · answer #2 · answered by bobcat97 4 · 0 0

In flowers, water strikes from the muse to the leaves by making use of way of the stem. The water then leaves the xylem in the leaf and evaporates into the ambience. Water circulate is pushed by making use of the evaporation by way of small pores on the undersides of leaves suggested as stomata. The stomata of a leaf enable the leaf to regulate evaporative cooling and water loss. This technique... • Cools the the plant • strikes nutrition up from the muse • keeps the turgor tension in cells

2016-10-14 23:17:37 · answer #3 · answered by ? 4 · 0 0

its your homework right? well, water moves in from the roothairs, all the way up to the stem, where you can see the xylem. this fibrous thingy is the passage way of water and it distributes it all through out the plant. im not really sure bout this thing, i only got it from my biology book...lol

2006-12-14 10:43:45 · answer #4 · answered by shirubiah 3 · 0 0

Well - take a look at your textbook and it should have a section that will tell u. Need to word this with a little more strategy so that people don't know you're doing homework. :)

2006-12-14 10:42:10 · answer #5 · answered by kristina807 5 · 0 0

Moves from roots to veins similar to blood in our body

2006-12-14 10:42:12 · answer #6 · answered by Anonymous · 0 0

Smells a lot like homework.

2006-12-14 10:41:30 · answer #7 · answered by Shibi 6 · 0 0

it goes up and down, then all around. that should be sufficient. How about you do your own homework. No wonder our kids are getting stupid.

2006-12-14 10:42:29 · answer #8 · answered by Tru Warrior 4 · 0 0

through the cells in that plant.

2006-12-14 10:41:22 · answer #9 · answered by lol 2 · 0 0

How about doing your own homework?

2006-12-14 10:41:29 · answer #10 · answered by cuno's mom 3 · 0 0

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