NEET BIOLOGY

Detailed explanation-1: -According to the pressure flow hypothesis, food is prepared in the plant leaves in the form of glucose. Before moving into the source cells present in the phloem, the prepared food is converted into sucrose.

Detailed explanation-2: -The Pressure-Flow Hypothesis It proposes that water containing food molecules flows under pressure through the phloem. The pressure is created by the difference in water concentration of the solution in the phloem and the relatively pure water in the nearby xylem ducts.

Detailed explanation-3: -The mass flow hypothesis, or pressure flow model is the main theory explaining the movement of materials throughout the plant. Essentially, as sugars become concentrated in leaves, water diffuses into the phloem via osmosis which causes turgor pressure to build in the phloem.

Detailed explanation-4: -Pressure flow hypothesis states that the water containing food flows through the phloem under pressure. This pressure is created by the difference in the content of water in the phloem and xylem.