Why do plants absorb water?

Question

Why do plants absorb water?

Answer 1

The nutrients a plant gets from the soil are all dissolved in the ground water. Plants are not able to take up solid forms so absorbing water is how they take up organic molecules from fertilizer and the soil. They transport everything by water this way. Once the water reaches the leaves it is required for photosynthesis to occur. The first step in photosynthesis is splitting water into oxygen and hydrogen using the energy from the sunlight. This is how plants release oxygen (O2) as a gas.

The whole reaction of this first step looks like this:

6CO2 + 6H2O (+ light energy) --> C6H12O6 + 6O2

6 Carbon dioxide molecules plus 6 water molecules plus energy are remade into 1 glucose sugar molecule and 6 gaseous oxygen molecules.

If the plant lacks water the leaf pores (stomata) close shutting off all evaporation and gas exchanging.  Normally O2 leaves and CO2 arrives through these pores in the leaves. Once they close the plant will lack CO2 as well as water efficiently shutting down photosynthesis despite abundant sunlight.

http://library.thinkquest.org/22016/phot...

http://www.neiljohan.com/projects/biolog...

Answer 2

Plants need to absorb water because it contains the nutrients and minerals the plant needs to grow properly. Also it is needed to prevent de-hydration, as water evaporates through the stomata, so more water is needed to replace it.

Thats the basic answer anyway. Hope this helped.

Answer 3

To live and grow

Answer 4

Becuz They need it just like us   if we dont have it we will die just like them

Answer 5

They need water to grow.

Answer 6

they absorb water for different process going in them for example they absorb watewr for the process of photosynthesis so that they can make their food.