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AQA GCSE 9-1 Biology Non Communicable disease topic summary
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A summary of the AQA GCSE Biology specification for the Non Communicable disease topic.
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NON COMMUNICBALE DISEASES: One that Smoking can cause cardiovascular Diet affects your risk of developingcannot be passed from one person to disease including coronary heart cardiovascular disease, and others d
another. disease, lung cancer, and lung through cholesterol levels and indire
diseases such as bronchitis and obesity.
RISK FACTORS: Aspects of a persons lifestyle, COPD.
or substances present in a persons body or Exercise levels affect the likelihood o
environment, that are linked to an increased A foetus exposed to smoke has cardiovascular disease.
rate of disease. restricted oxygen, which can lead to
premature birth, low birthweight, Obesity is a strong risk factor for typ
TUMOUR: Caused by abnormal, uncontrolled or even stillbirth.
cell division. If you eat more food than what you
excess is stored as fat. Fat is needed
BENIGN TUMOURS: Form in one place, and Non-communicable internal organs, and it acts as an ene
do not spread to other tissues. diseases
Alcohol has many effects if drunk in
MALIGNANT TUMOURS: Invade neighbouring example, it can damage the liver and
tissues and can spread to other parts of the cirrhosis and liver cancer. It can also
body in the blood, to form secondary damage, and even death.
tumours. They are cancers.
Alcohol drunk by a pregnant woman
Cancer can be treated by one of the following the development of her unborn bab
methods:
-Radiotherapy (cells destroyed by doses of Ionising radiation ( x-rays, ultraviole
radiation). sun etc.) can be dangerous when tak
-Chemotherapy (chemicals used to stop cells body, it penetrates the cells and dam
dividing or to make them ‘self destruct’). chromosomes, causing mutations in
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