Water is transported inside plants by tube-like cells called xylem. The process relies on both osmotic pressure and capillary action.Continue Reading
Water is first absorbed by a plant's porous roots after rainfall and passes into the root xylem. Then, by way of osmotic pressure, the water is moved up the plant's stem or trunk. Also referred to as root pressure, osmotic pressure cannot move the water very high up the plant; about 20 feet at most. In a tall tree that would not be enough, so capillary action must take over at this point.
When water evaporates out of leaves, the void left behind causes the water in the xylem below to be pulled upwards. When combined with capillary action, these processes allow water to reach all parts of the plant.Learn more about Botany
The process of transpiration is when water moves through plants from the roots to the leaves, then changes to vapor as it leaves the plant. Transpiration cools the plant and also provides it with nutrients, carbon dioxide and water.Full Answer >
Some plants that grow in rivers are cattails, yellow water lilies, floating duckweed and water hyacinth. Other plants found in rivers are water cress and fontinalis, or fountain moss.Full Answer >
The scientific definition of plasmolysis is stated as the contraction of the protoplasm of cells within plants due to the loss of water through osmosis. It is when the cell membrane peels off of the cell wall and the vacuole collapses when placed in a hypertonic environment.Full Answer >
During photosynthesis, plants make glucose and oxygen from carbon dioxide and water. To do this, they need energy in the form of light from the sun. While plants use glucose as energy, oxygen enters the atmosphere for use by other organisms.Full Answer >