• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Comparisons between the structure and function of collagen and insulin.

Extracts from this document...


Comparisons between the structure and function of collagen and Insulin Insulin is a very important hormone and is also it is a fibrous protein, this means its properties are that it is extensible, strong and insoluble it is also a secondary structure which is made up of ? helices and � sheets, where as collagen is a important structural protein found in animals which is a globular protein (a secondary structure bent and folded into spherical shapes) which is soluble which consists of a hydrophobic core which is surrounded by a hydrophilic external surface. ...read more.


The structure of insulin is a compact cylinder with the carboxyl of polypeptide chain B longer then the rest of the protein. Insulin contains many hydrophobic residues which together form a hydrophobic core where as a collagen molecule is a much larger structure, it consists of three polypeptide chains which each contain around 1000 amino acids which are coiled together to form a triple helix. The collagen polypeptide contains nearly one-third glycine, every third amino acid is glycine, and all the other amino acids are mostly either proline or hydroxyproline. ...read more.


insulin is that mainly increases the rate of synthesis of fatty acids, protein and glycogen, and also inhibits the breakdown of protein and glycogen. A very important part of the process is to stimulate cells such as liver, muscle and fat to remove glucose which causes an overall reduction of blood glucose levels, some other sugars and amino acids are also removed from the blood, which are either used or stored as fat or glycogen. In insulin in your body is not functioning or you are not sensitive it you will form diabetes where as if collagen is not functioning then you may form brittle bone disease. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Physical Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Physical Chemistry essays

  1. Marked by a teacher

    Electrochemical Cells

    5 star(s)

    -0.680 0.0625 1 1.186 0.424 -0.762 0.5 1.165 0.424 -0.742 0.25 1.145 0.424 -0.721 0.125 1.124 0.424 -0.701 0.0625 1.104 0.424 -0.680 From the data, you can see that there is a connection between the concentration and the electrode potential.

  2. Structure and function of lipids in plants and animals

    Fatty acids in oils are generally: 1. Smaller, 2. Unsaturated. On the other hand, fatty acids in fats are generally: 1. Larger, 2. Saturated. The term "saturated" means that there are no double bonds present between the carbon atoms in the molecule.

  1. Identification of amino acids by chromatography.

    On the chromatogram, a distinct purple mark is visible at 2.5cms. If I put this result in the Rf equation: Rf value = Distance moved by compound Distance moved by solvent The Rf value of this mark can be found.

  2. Structure and Functions of Collagen and Insulin.

    Insulin stimulates many metabolic reactions following receptor binding: * stimulates glucose transport * stimulates amino acid transport * increases glycogen synthase activity * increases the rate of general protein synthesis * depresses lipolysis and protein degradation * Insulin is catabolized primarily in the liver and kidney.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work