NEET BIOLOGY

Detailed explanation-1: -The phloem sap contains high quantities of sugars, amino acids, vitamins, and organic and inorganic acids. Sugars and amino acids are the major components of the phloem sap. Sucrose is the predominant sugar in phloem sap.

Detailed explanation-2: -State that sucrose is the most prevalent solute in phloem sap.

Detailed explanation-3: -Axial parenchyma cells are more abundant in phloem than in xylem. Parenchyma cells perform multiple functions like storing carbohydrates (starch), water, or nitrogen, and facilitating the communication between xylem and phloem.

Detailed explanation-4: -Sucrose is the main sugar in phloem sap and its concentration varies between species. Other sugars such as hexoses (e.g., glucose and fructose), raffinose-oligosaccharides, and polyols (mannitol and sorbitol) are also found in phloem sap [1].