The cooperation of body systems allows for basic and essential activities to occur in order for the organism to maintain stable living conditions
Researchers have concluded that phloem sap moves through the sieve tubes of angiosperms using the bulk flow of positive pressure known as pressure flow.
- As the sieve tubes load up with sugar, the tube takes up water as well due to osmosis.
- This uptake of water causes the sap to flow along the tub due to the pressure of water building.
- This pressure is relieved as the sugar is loaded into the sink cells, causing the loss of water as well.