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.
To successfully grow eggplants from seed, seeds should be used within 5 to 6 years. To successfully grow eggplants, you should plant eggplant seeds at a depth of Â½ inch. Eggplant plants should be 24 inches apart, and rows should be 36 inches apart. Plant eggplant plants in full sun.