The corresponding author normally is the senior investigator how is leader of the group. She/he is in charge of the project in which the paper was conceived. Thus, he/she is responsible for getting funds, the results, the original idea and the paper. In Biochemistry and Molecular Biology, by convention, the senior author is the last, while the first is the student who actually did the work. That depends on the discipline, for instance in education and chemistry, the person in charge and corresponding author goes first.
The corresponding author normally is the senior investigator how is leader of the group. She/he is in charge of the project in which the paper was conceived. Thus, he/she is responsible for getting funds, the results, the original idea and the paper. In Biochemistry and Molecular Biology, by convention, the senior author is the last, while the first is the student who actually did the work. That depends on the discipline, for instance in education and chemistry, the person in charge and corresponding author goes first.