The main differences between emitter and collector are doping concentration and size. The emitter is heavily doped, while the collector is lightly doped. You could try to swap them, but you'll get a very low \$H_{FE}\$, probably even less than 1.
Image Credit: Photo: Oxmoor House. SEASON: Although available year-round, eggplant is at its peak from July to October. CHOOSING: When selecting, look for eggplants with firm, glossy skin. Size and color vary widely among types, but the eggplant should feel heavy. Avoid those with wrinkled skin, soft spots, or brown patches.
Eggplant is a cold-sensitive vegetable that requires a long warm season for best yields. The culture of eggplant is similar to that of bell pepper, with transplants being set in the garden after all danger of frost is past./2 cup fresh basil leaves, cut into shreds. Wash eggplant, remove caps and cut into quarters or cut in half. Sprinkle with salt and let drain for 30 minutes. Rinse and pat dry with paper towels.