Biology 2.3.3 Flashcards
What is a ‘Risk Factor’?
A Risk Factor is a Factor that may Cause Disease. Certain Risk Factors Correlate with Certain Diseases.
Risk Factors are Linked to an ___ Rate of ___.
Increased, Disease.
Risk Factors can be: (3)
-Aspects of a Person’s Lifestyle.
-Components of a Person’s Surroundings.
-Genetic.
A Casual Mechanism has been Proven for some ___ ___, but not in others.
Risk Factors.
What Disease(s) are the Risk Factor ‘Smoking’ Linked to? (3)
-Lung Disease.
-Lung Cancer.
-Cardiovascular Disease.
Explain how the Risk Factor ‘Smoking’ can lead to Disease.
Chemicals in Cigarette Smoke Damage the Alveoli in the Lungs, & the Endothelial Lining of the Arteries.
What Disease(s) are the Risk Factor ‘Obesity’ Linked to? (1)
Type 2 Diabetes.
Explain how the Risk Factor ‘Obesity’ leads to Disease.
Excess Consumption of Sugar as a result of a Poor Diet Reduces the Body’s Sensitivity to Insulin.
What Disease(s) are the Risk Factor ‘Consuming Alcohol’? (2)
-Liver Disease.
-Impaired Brain Function.
Explain how the Risk Factor ‘Consuming Alcohol’ leads to Disease.
The Breakdown of Alcohol by Cells of the Liver Produces Substances which can be Toxic to Liver Cells in High Concentrations. The Neurones of the Brain are also Damaged by Alcohol, Reducing Brain Function.
What Disease(s) are the Risk Factor ‘Exposure to Carcinogens’ Linked to? (1)
Cancer.
Explain how the Risk Factor ‘Exposure to Carcinogens’ leads to Disease.
Exposure to Ionising Radiation, or Certain Chemical, can Damage DNA in Cells, leading to Uncontrolled Cell Division, Causing Cancer.
Many Diseases are Caused by the Interaction of a number of…
Risk Factors.
