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Aim
To investigate some of the properties of immobilised enzymes.
Introduction
The four-session practical exercise is designed to give some insight into the preparation and properties of immobilised enzymes. 
It consists of three parts:

Preparation and properties of covalently-immobilised a-amylase. 
Preparation and properties of non-covalently-immobilised a-amylase.
The use of a packed-bed and stirred tank reactor.

 
Before starting work, read through the Methods and [...]

The gut or alimentary canal can be considered as an extension or inversion of the epithelium or outer skin, as it is physiologically not part of the body. It runs from the mouth from the rectum, and varies in thickness. It has the following functions (comments in brackets for my Yorkshire-born counterparts):

Ingestion (eetin’ an’ swallowin’ [...]