Matching Pairs photosynthesisOnline version learn about photosynthesis by Alba Monfort Torralba 1 The leaves absorb 2 The mixture of water and mineral salts is called 3 Raw saps travels up the stem to the leaves through tubes called 4 Plants absorb water and minerals from 5 The leaves contain a green substance called 6 Elaborated sap travels to all parts of the plant through 7 Raw saps transforms into elaborated sap. carbon dioxide from the air. raw sap. xylem vessels. their roots. tubes called phloem vessels. chlorophyll which traps sunlight.