what are the two forces which are responsible for upward movement of water in plants
Answers
Answer:
Transpiration helps in creating a vacuum inside the plant which pulls the water upwards. Xylem vessels transport water and dissolved minerals upwards from roots through stem to the tips of leaves against the force of gravity. The upward movement of water and minerals .
Answer:
The forces that cause water to rise are adhesion, cohesion, and surface tension. The cohesion force, a strong force of mutual attraction, keeps water molecules bound to one another.
Explanation:
Transpiration is the process by which plant parts lose water as water vapor. Stomata, which are primarily found on the underside of leaves, are used to do this. To limit water loss, special cells called guard cells open and close them. The water is moved upward and against gravity from the plant sections to the leaves. Due to the cohesion force, water columns may endure a draw or tension of up to 100 atm. Consequently, tensile strength is another name for cohesive force. Nearly 15,000 atm is the theoretical approximation.
The best explanation to describe how water rises is the cohesion-tension theory, also referred to as the transpiration pull theory.
The notion was first forth by Dixon and Jolly in 1894. The theory is supported by the following features:
1. The ability of water molecules to stick together and form an uninterrupted continuous water column in the xylem.
2. A transpiration pull or tension exists within this water column.