In flowering plants plasmodesmata are narrow channels through cell walls that connect the cytoplasm of adjacent

In flowering plants plasmodesmata are narrow channels through cell walls that connect the cytoplasm of adjacent CELLS AND ALLOW SMALL MOLECULES TO MOVE FREELY BETWEEN THE TWO CELLS.

Explanation:

Plasmodesmata are tiny channels which functions as intercellular cytoplasmic links and pathways, to ease communication and transport of materials between the cytoplasm of adjacent cells.

It permits intercellular passage of water, certain nutrients, and other molecules to pass from one plant cell's cytoplasm to an adjacent plant cell's cytoplasm.

the index of refraction of the second medium is higher. i just took the test trust me !