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 purpose of this Introduction is to clarify some of the key terminology that we use, to discuss some earlier reviews which define the baseline from which our study set out, to discuss some aspects of the methods used in our work, and finally to introduce the structure and rationale for the subsequent sections.