Question

Out of the following, choose the wrong statement.

• A. High blood pressure is caused by excessive weight and lack of exercise.
• B. Cancers can be caused by genetic abnormalities.
• C. Peptic ulcers are caused by eating acidic food.
• D. Staphylococci is not the main causative agent of acne.

Answer 1

The correct option is C Peptic ulcers are caused by eating acidic food.

Ulceration of the gastrointestinal mucosa is caused by disruption of the mucus layer on the gastric epithelial cells. It is wrong to believe that eating acidic foods may lead to development of peptic ulcers. Ulcer may be viewed as an extension of the cell damage found in acute gastritis. The most common sites for ulcers are the stomach and the first few centimetres of the duodenum. The main factors behind ulcer are:
(1) Reduced blood supply (Reduced blood flow and ischaemia may be caused by excessive cigarette smoking and stress, either physical or mental).
(2) Reduce mucus secretion (The composition and the amount of mucus may be altered, e.g., by regular and prolonged use of aspirin and other anti-inflammatory drugs by the reflux of bile acids and salts in chronic gastritis) and
(3) Raised levels of steroid hormones, e.g., in response to stress or when they are used as drugs in chronic gastritis by irradiation and the use of cytotoxic drugs).

Helicobacter pylori, is also a causative agent of this disorder.

Thus, the correct answer is option C.