“…Active uptake of nonelectrolytes.-Active (Hnonosmotic") uptake of non electrolytes which are used in experiments on passive permeability (e.g., urea, malonamide, methylurea) and water into plant cells, especially during plasmolysis, was again inferred by Follmann (39) and from differences in plasmolysis and cell content concentration on dia toms and Cladophora with and without treatment with metabolic inhibitors.…”