Unit 4 Task 2

Topics: Alcohol, Alcohol abuse, Drug addiction Pages: 33 (11887 words) Published: April 18, 2013
This information will explain what factors can affect developing life. These are going to include: genetic, biological, environment, socio-economic and lifestyle. Genetic disorders
Cystic fibrosis
How inherited
Cystic fibrosis is an inherited disorder that affects the cell membranes, causing the production of thick and sticky mucus. It is caused by a recessive allele. This means that it must be inherited from both parents. The genetic diagram shows how this can happen. Genetic diagram to show the inheritance of cystic fibrosis

The cystic fibrosis allele is represented by f. The normal allele is F. Suppose both parents have alleles Ff. The possible combinations of alleles in the children are FF, Ff, Ff and ff. The alleles ff will cause the disease. So, although the parents do not have cystic fibrosis, they can produce children with the disease. The parents are called 'carriers' of the disease www.bbc.co.uk how it affect you

Cystic fibrosis (CF) is a chronic, life-shortening disease that occurs as a result of a genetic defect. The defective gene interferes with the body’s ability to transfer water and salt to and from cells. This causes secretions, which are normally thin and watery in healthy people, to become very thick and sticky. The thick secretions clog up organs and prevent them from working properly. Lungs

Cystic fibrosis causes problems in the lungs when the thick mucus builds up and gets stuck in the airways. When this happens:
Breathing passageways become blocked and air can’t get through. Bacteria grow in the mucus collections and causes infection in the lungs, nose, and sinuses. http://0.tqn.com/d/cysticfibrosis/1/G/A/-/-/-/adamlungs.jpgNasal polyps may develop in some CF patients.

Pancreas a
The pancreas is part of the digestive system. Its job is to secrete enzymes that are needed to digest food, and a hormone called insulin that controls blood sugar. Cystic Fibrosis also causes these secretions to become thick. When this happens:

The pancreatic ducts become clogged.
Enzymes can’t get past the obstruction.
Food is not digested properly and the body can’t absorb nutrients. Eventually, the obstruction of the pancreas may cause scarring that damages the insulin-producing cells and prevents them from producing insulin. Insulin is not available to the cells, which causes blood sugar levels to rise. This condition is called insulin-dependent diabetes, which happens in about 15% of all CF patients. www.cysticfibrosis.about.com

Effect on physical development
People who suffer from cystic fibrosis will find it hard to do certain sporting activities as the thick mucus will make it hard to breath and they might not able to keep up. As the sport requires a certain amount of physical fitness and this is no good for sports like football and in contact sports as you are unable to keep up and are likely to get yourself hurt or you might have to stop every few minutes and let your team down. Taking part in this particular type of sport can lodge the mucus in places and this means that you have to stop and take a break every few minutes to cough it up. The risk of further illness is slightly higher as you have this illness to worry about and you could leave your body open to other illness that can build on and make it worse for you. This illness it strongly affects how you eat as your body is not able to absorb nutrients that you take from food so it stops you from eating certain foods and it is not good for your health.

If you suffer from this disease it could affect your education as you have to go out regularly to the therapist to have treatment for getting rid of the mucus. Then, with you having to go out all the time you have to miss parts of your education. Having this disease could make you feel weak and you might not have the ability to work fully as the cystic fibrosis affects your diet because your body is not able to absorb all of the...
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