Isolating cells and their parts:

Introduction

Most of the animal  and plant  tissues  contain  a mixture  of cell types,  and most of  cells contain multiple subcellular organelles. However microscopy techniques may be used to visualize organelles and large molecules inside  cells,  A lot  studies  on cell structure  and function  need  samples  of a specific  type of cell, components or subcellular  organelle  within  them. Most biochemical process need obtaining large numbers of cells and then physically disorderly them to isolate their components.  Tissue samples will frequently provide large quantities of material but it will contain a heterogeneous mix of cells. Techniques have been developed where homogeneous populations of cells may be isolated, grown in culture to amplify them, and consequently studied or fractionated into their component parts.