Match the labels to indicate when each statement is true. labels can be used once, more than once, or not at all. part a1. orange dye moves independently of purple dye2. concentration gradients exist that drive diffusion of both dyes3. there is a net movement of orange dye from side a to side b4. purple dye moves only from side b to side a5. there is no net movement of purple dyepart ba. alwaysb. neverc. only at equilibriumd. only before equilibrium is reached