What about the advantages of having Macro in the lens? Does it really makes a difference in taking close up picture? I found out that Tamron 70-300 Di has a macro lens but does the Nikon 55-200 VR also has a Macro in it?

Basically I'm interested in taking a potrait with a background blurred and a longshot picture of a birds and also I like to take a closeup picture of a small objects like insects, flower, etc. Is it possible to take these kinds of photograph with these two lences?