my Orgo is 4 credits plus a separate Orgo Lab 2 credits. The lab has a lecture part and "lab" part. It also has a final exam. The 4 credit Lecture is constructed probably as most of your classes. Every school is different. But here is an advice, if in the future there shall be a problem with that 5 credit class make sure you save the syllabus. This way if someone asks: "But you didn't take Organic Chem Lab" you have a handy proof that your course included LAB. Just a thought. This strategy was useful to me when transferring colleges, i just brought in my old syllabi and lost only 1 credit in the process.
🙂