What is Translocation in vascular plants?
Q: What is Translocation in vascular plants?
A: Translocation in vascular plants is the movement of organic molecules and some mineral ions.
Q: How does water move from the soil to the leaves?
A: Water moves from the soil to the leaves in xylem vessels as a result of transpiration. Transpiration, which is the evaporation of water from leaves, causes a pull on the water column due to forces of cohesion between water molecules formed by hydrogen bonds, which causes it to move upwards.
Q: What are organic materials mainly produced in?
A: Organic materials are mainly produced in leaves.
Q: How are these materials moved around the plant?
A: These materials are moved around the plant in living cells of phloem by a process called translocation.
Q: What is sap composed of?
A: Sap is composed of a water-based solution that is rich in sugars made by photosynthesis.
Q: Who proposed 'pressure flow' hypothesis to explain mechanism of phloem translocation?
A: The 'pressure flow' hypothesis was proposed by Ernst Münch in 1930 to explain mechanism of phloem translocation.
Q: In what direction does movement occur within phloem cells?
A: Movement within phloem cells occurs multi-directionally, whereas movement within xylem cells occurs one-directionally (upwards).
