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Chemistry in Everyday Life Test - 16

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Chemistry in Everyday Life Test - 16
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  • Question 1
    1 / -0
    Which destroy antigens?
    Solution
    Antibodies destroy the antigen which is then engulfed and digested by macrophages white blood cells and also produced chemicals called anti toxins which destroy the toxins.
  • Question 2
    1 / -0
    Which of the following enhances lathering property of soap?
    Solution
    Sodium rosinate enhances the lathering property of soap.
    Lather is caused by increasing the surface tension of water (and then stirring it up). The increased surface tension is also one of the mechanisms that soap uses to clean things.
  • Question 3
    1 / -0
    _______ is a substance which neutralizes stomach acidity, which in turn relieves heartburn, indigestion or stomach upset.
    Solution
    An antacid (derived from the word "anti-acid") is a substance which neutralizes stomach acidity, which in turn relieves heartburn, indigestion or stomach upset.
    Histamine and cimetidine are examples of antacids.
  • Question 4
    1 / -0
    Which of the following does not come under antimicrobial?
    Solution
    An antimicrobial tends to destroy/prevent development or inhibit the pathogenic action of microbes such as bacteria, fungi, virus, or other parasites selectively. Antimicrobial are classified as :
    1. Antiseptics are applied to the living tissues such as wounds, cuts,ulcers and diseased skin surfaces.
    2. Disinfectants are applied to inanimate objects such as floors, drainage system, instruments, etc.
    3. Antibiotics are used as drugs to treat infections because of their low toxicity for humans and animals.
  • Question 5
    1 / -0
    Drugs, which on interaction with macromolecular targets produce a biological response which is therapeutic and useful, are called:
    Solution
    Drugs are chemicals of low molecular masses $$(\approx100 - 500u)$$. These interact with macromolecular targets and produce a biological response. When the biological response is therapeutic and useful, these chemicals are called medicines.
  • Question 6
    1 / -0
    Which class of drugs are used to relieve stress?
    Solution
    Anti depressant is used to alleviate depression.
    Antacid is used     preventing or correcting acidity, especially in the stomach.
    Disinfectant is     a chemical liquid that destroys bacteria.
    Anti histamine is     a drug or other compound that inhibits the physiological effects of histamine, used especially in the treatment of allergies.
  • Question 7
    1 / -0
    Most commonly used antacids are:
    Solution

    Most commonly used antacids are weak bases.
    Examples of antacid includes sodium bicarbonate, magnesium hydroxide, magnesium carbonate and aluminium hydroxide. An antacid is the substance which neutralizes the acid and raise the pH to an appropriate level in stomach. They should not be caustic like strong bases.
  • Question 8
    1 / -0
    Which of these was the largest selling antacid?
    Solution
    Cimetidine (also called Tegamet) was the largest selling antacid.
    It prevent the interaction between histamine and the receptors in the stomach wall, releasing less amount of acid.
  • Question 9
    1 / -0
    Which of the following is an antacid?
    Solution
    Examples of antacid include sodium bicarbonate, magnesium hydroxide, magnesium carbonate and aluminium hydroxide, as they are all basic in nature.
  • Question 10
    1 / -0
    __________ are a class of chemical compounds used for the treatment of stress, and mild or even severe mental diseases.
    Solution
    Tranquilizers are a class of chemical compounds used for the treatment of stress, and mild or even severe mental diseases.
    Analgesics are reduce or abolish pain without causing impairment ofconsciousness, mental confusion, incoordination or paralysis or someother disturbances of nervous system.
    Antiseptics are anti-microbials applied to the living tissues such as wounds, cuts, ulcers and diseased skin surfaces.
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