Question

Describe the key features of the following agents/factors causing diseases (hint: what do they actually do to human beings?) (in 30-50 words each):

question 1 Nutritional factors:

question 2   The loss of normal control mechanisms such as the uncontrolled growth of cancer cells:

Answer 1

QUESTION :Describe the key features of the following agents /factors causing diseases.

1. Nutritional factor
2. The loss of normal control mechanism such as the uncontrolled growth of cancer cell

ANSWER :

1. Nutritional factor

• Generally the nutrional disease or the nutrient related diseases cause illness in human-beigns.These are include obesity,eating disorders, chronic disease,cardiovascular disease,cancer,hypertension etc.
• The key factors of nutrition related chronic disease are, the amount of energy consumed for physical activity and the quality of food.
• The consumption of healthy diets boost up the cholesterol in human body and decrease unhealthy triglycerides, which cause the risk of heart disease,metabolic syndrome,diabetes,stroke etc.
• The main reason of cancer is the consumption of tobacco but some dietry factor also cause different types of cancer in human body.So maintaining the healthy weight reduce the risk of cancer.
• The excess of specific nutrients such as protien,vitamins,mineral, fatty acid may cause malnutrition in human body.

2. The loss of normal conrol mechanism such as the uncontrolled growth of cancer cell

• Cancer refers to the uncontrolled division of cell and also known as unchecked cell growth.
• By accelerating cell division rates , mutations in genes can cause cancer.When mass of cancerous cell grows, then it develop into a tumor.
• Due to development of abnormal cell in cancer, then it destroy normal body tissue in human-beigns.
• Gene mutation failed to stop uncontrolled cell growth and a tumor suppressor gene allows cancer cells to continue growing and accumulating.
• A mutation in DNA repair gene means other error can not corrected which cause cells to become cancerous.