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Biology Assessed Essay

365 words - 2 pages

Year 11 Biology Assessed HomeworkAutumn 16 mark longer answer questionCollagen is an important protein in the body.Sometimes, disorders involving collagen cause problems in the skin and joints. They can also cause blood vessels to weaken and arteries may burst. These disorders can be inherited.Explain how an inherited disorder affecting collagen could come about and suggest why it causes these particular ...view middle of the document...

The DNA in our cells is decoded to make proteins. There are sequences of amino acids in a protein that governs its use. The DNA sequence of a gene determines the amino acid sequence of the protein. Any changes in DNA sequence can result in the changes within protein functions, which itself is a mutation. Collagen disorder is when the tissues such as cartilage; skin and bone tend to be weak; collagen is a protein in the body that strengthens these. When there is a mutation present in the DNA affecting collagen, it is caused by an inactive allele of collagen then there will be a reduced amount of collagen present in the body. Collagen forms the structure of bones, as hydrogen bonds form around collagen giving it its strength; it also prevents blood that is pumped at high pressure form bursting the arteries and is the main component to tendons, which connects skeletal muscles to bones. Collagen has a triple helix as a main structure as well as three codes and is also a 'structural' protein; the helixes unwind to make it flexible as well as hard.Hakan Bilen 11R

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