In an experiment, a group of students placed ten raisins in a container with 100 ml of water. They covered the container and let
the raisins sit overnight. The students removed the raisins from the container and observed that they were larger. They also observed that the volume of the water had decreased. What happened to the raisins to cause them to become larger?
When raisins are placed in water and sit overnight, endosmosis takes place. Water goes into the raisins from the surrounding. Due to this endismosis, the raisins gain water and become larger in volume.
Since raisins absorbed some water, the volume of water from the container decreases.
Plants absorb water in a large amount because water is the only medium which is present in a plant for the transportation of minerals. So, the plant absorbs a lot of water even if it is lose by transpiration.
