Hi,

Some colleges that offer BZC is as follows

1.Guntur Medical College

2.Aditya Degree College

3.Rangaraya Medical College

4.Avanthi P.G College

5.Nizam College etc

The colleges that offer integrated BSc+BEd Microbiology are very rare in AP. You can opt BSc microbiology at different colleges and go for BEd biological sciences or microbiology after graduation. The admission procedure is different for different colleges. Some of them conduct entrance exams while others are direct entry. You need to check the official websites of respective colleges for further details. Some top colleges offering BSc microbiology are listed in following article

https://university.careers360.com/colleges/list-of-bsc-in-microbiology-and-virology-degree-colleges-in-india

All the best.