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Cancer Causing Culprits
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Cancer Causing Culprits

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Questions and Answers

Which of the following is a strong carcinogen that can cause skin, sarcomas, and organ cancers, and is found in cigarette smoke and smoked meats and fish?

  • Aflatoxin B1
  • Polycyclic Aromatic Hydrocarbons (correct)
  • Direct alkylating agents
  • Aromatic amines
  • Which of the following is a strong carcinogen found in cigarette smoke and smoked meats and fish?

  • Aromatic amines
  • Aflatoxin B1
  • Polycyclic Aromatic Hydrocarbons (correct)
  • Direct alkylating agents
  • Which carcinogenic compound is associated with liver and bladder cancers, and is linked to bladder cancer?

  • Aromatic amines (correct)
  • Direct alkylating agents
  • Aflatoxin B1
  • Polycyclic Aromatic Hydrocarbons
  • Which carcinogen is linked to bladder cancer?

    <p>Aromatic amines</p> Signup and view all the answers

    Which mycotoxin is strongly linked to hepatocellular carcinoma in parts of Africa and China?

    <p>Aflatoxin B1</p> Signup and view all the answers

    Which substance is strongly linked to hepatocellular carcinoma in parts of Africa and China?

    <p>Aflatoxin B1</p> Signup and view all the answers

    Which of the following is suspected to contribute to the induction of some forms of cancer, particularly gastric carcinoma, and is present in food with nitrate preservatives?

    <p>Nitrosamines and Amides</p> Signup and view all the answers

    What type of cancers are associated with exposure to asbestos?

    <p>Lung cancers</p> Signup and view all the answers

    Which hormone serves as a promoter of liver tumours?

    <p>Estrogens</p> Signup and view all the answers

    Which of the following is associated with an increased incidence of bronchogenic carcinomas, mesotheliomas, and gastrointestinal cancers?

    <p>Asbestos</p> Signup and view all the answers

    Which hormone serves as a promoter of liver tumours?

    <p>Estrogens</p> Signup and view all the answers

    What is the association between high levels of dietary fat and cancer?

    <p>Increased risk of colon cancer</p> Signup and view all the answers

    What type of cancers are associated with alcohol consumption?

    <p>Mouth, pharynx, and larynx cancers</p> Signup and view all the answers

    Which of the following has been associated with an increased risk of colon cancer?

    <p>High levels of dietary fiber</p> Signup and view all the answers

    Which of the following increases the risk of development of cancers of the mouth, pharynx, and larynx by over tenfold?

    <p>Alcohol consumption</p> Signup and view all the answers

    What is the effect of ultraviolet rays on the skin?

    <p>Increased incidence of squamous cell carcinoma, basal cell carcinoma, and malignant melanoma of the skin</p> Signup and view all the answers

    Which of the following induces an increased incidence of squamous cell carcinoma, basal cell carcinoma, and malignant melanoma of the skin?

    <p>Ultraviolet rays</p> Signup and view all the answers

    Which organs are the most vulnerable to develop radiation-induced cancers?

    <p>Blood and thyroid</p> Signup and view all the answers

    Which of the following is implicated in skin cancers and various malignant neoplasms, with blood and thyroid tissue being the most vulnerable organs to develop radiation-induced cancers?

    <p>Ionizing radiation</p> Signup and view all the answers

    What is the effect of HPV, H. pylori, and other viruses on humans?

    <p>They are oncogenic and cause cancers in humans</p> Signup and view all the answers

    What is the relationship between tumour surveillance and the immune system?

    <p>Tumour surveillance is not perfect and tumour cells are capable of evading the immune system</p> Signup and view all the answers

    Which of the following viruses has been found to be oncogenic and cause cancers in humans?

    <p>HPV</p> Signup and view all the answers

    What type of cancers are suspected to be induced by Nitrosamines and Amides?

    <p>Gastric carcinoma</p> Signup and view all the answers

    Are tumour cells capable of evading the immune system?

    <p>Yes</p> Signup and view all the answers

    Study Notes

    Common Carcinogens and Their Effects

    • Direct alkylating agents are weak carcinogens that can induce lymphomas and leukaemias, but some are used as anti-cancer therapy.
    • Polycyclic Aromatic Hydrocarbons are strong carcinogens that can cause skin, sarcomas, and organ cancers. They are found in cigarette smoke and smoked meats and fish.
    • Aromatic amines are carcinogenic and are associated with liver and bladder cancers. B-Naphthylamine is linked to bladder cancer.
    • Aflatoxin B1 is a mycotoxin that is strongly linked to hepatocellular carcinoma in parts of Africa and China.
    • Nitrosamines and Amides are suspected to contribute to the induction of some forms of cancer, particularly gastric carcinoma and are present in food with nitrate preservatives.
    • Exposure to asbestos has been associated with an increased incidence of bronchogenic carcinomas, mesotheliomas, and gastrointestinal cancers.
    • Hormones such as estrogens serve as promoters of liver tumours.
    • High levels of dietary fat have been associated with an increased risk of colon cancer.
    • Alcohol consumption increases the risk of development of cancers of the mouth, pharynx, and larynx by over tenfold.
    • Ultraviolet rays induce an increased incidence of squamous cell carcinoma, basal cell carcinoma, and malignant melanoma of the skin.
    • Ionizing radiation is carcinogenic and is implicated in skin cancers and various malignant neoplasms. Blood and thyroid tissue are the most vulnerable organs to develop radiation-induced cancers.
    • HPV, H. pylori, and other viruses like EBV, HBV, and KSHV have been found to be oncogenic and cause cancers in humans.
    • Tumour surveillance is not perfect, and tumour cells are capable of evading the immune system, but the immune system can recognise tumour cells and eliminate them.

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    Description

    Test your knowledge on common carcinogens and their effects with this informative quiz. From direct alkylating agents to viruses, this quiz covers a wide range of carcinogens and their associated cancers. Learn about the harmful effects of polycyclic aromatic hydrocarbons found in cigarette smoke and smoked meats, as well as the link between aflatoxin B1 and hepatocellular carcinoma in parts of Africa and China. Find out how hormones, dietary fat, and alcohol consumption can increase your risk of developing certain

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