Written By: Membrane, in biology, the thin layer that forms the outer boundary of a living cell or of an internal cell compartment. The outer boundary is the plasma membrane, and the compartments enclosed by internal membranes are called organelles.
The main purpose of the INTRODUCTION is to give a description of the problem that will be addressed. In this section the researcher might discuss the nature of the research, the purpose of the research, the significance of the research problem, and the research question(s) to be addressed. Three essential parts of a good introduction are: RATIONALE.
The introduction is where you tell the reader (or the teacher or the judges) what. the question was that you investigated, and what answer you found. It can also. include a very brief description of how you investigated it, but that can't be more. than one single sentence.