Dictionary » C » Capillary action

Capillary action

If a capillary tube is made of glass or any other substance that is polar, water will spontaneously climb up inside it without having to be pumped in any way. The smaller the tube, the higher the water climbs. The attraction is so great between the water molecules and the molecules of the tube that water will climb in defiance of the force of gravity.

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... that draw water upwards into the leaves (the other mechanisms being capillary action and osmotic pressure). So closing the stomata DOES reduce the intake of water.

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by EmperorSunshine
Wed May 23, 2012 4:23 am
Forum: Botany Discussion
Topic: Photorespiration
Replies: 3
Views: 3708

Re: water movement in xylem

... passive; water is pulled through the plant because of transpiration and capillary action. As water exits the leaves, it creates pressure in the xylem that causes water to move ...

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by Ariamezzo
Sat Feb 26, 2011 11:46 am
Forum: Botany Discussion
Topic: water movement in xylem
Replies: 2
Views: 7208

Re: Water's Pathway through a plant

... involved? Mainly via the xylem. Mechanisms include: transpiration and capillary action.

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by robsabba
Mon Aug 23, 2010 5:36 pm
Forum: Botany Discussion
Topic: Water's Pathway through a plant
Replies: 4
Views: 6290

Slide problem

... technique is that it sometimes happens that the retina is sucked by capillary action under one of the glued coverglasses. If this happens I can throw my preparation away. ...

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by Orome
Fri Apr 23, 2010 8:37 am
Forum: Cell Biology
Topic: Slide problem
Replies: 1
Views: 1527

Can plants absorb sucrose?

... of the suction force that originates due to evaporation in leaves. Capillary action contributes to the ascension of water in the xylem, but it does not help the water get ...

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by MrMistery
Wed Jul 02, 2008 7:49 am
Forum: Botany Discussion
Topic: Can plants absorb sucrose?
Replies: 12
Views: 41262
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