The process in which transport of soluble products of photosynthesis takes place in plants is known as :

The transport of soluble products of photosynthesis is called translocation and it occurs in the part of the vascular tissue known as phloem.

• Option A (Transpiration) is incorrect because transpiration is the loss of water vapor from the aerial parts (leaves) of the plant.
• Option B (Evaporation) is incorrect because it is a general physical process of liquid turning into vapor, not a biological transport mechanism for food.
• Option C (Conduction) is incorrect because conduction generally refers to the movement of water and minerals through xylem, or physical heat transfer, rather than the active translocation of organic solutes.
• Option D (Translocation) is correct as it specifically defines the transport of soluble photosynthetic products (like sucrose) from leaves to other parts of the plant.