CIDESCO Questions & Answers 2023

Characteristics of life include: - ANSWER Growth and metabolism Example of organic biological substances are: - ANSWER Carbohydrates and fats Examples of mineral substances are: - ANSWER Paraffin's and petroleum Matter is everything that: - ANSWER Occupies space and has weight What property does all matter have? - ANSWER All matter has weight Sublimation is the change of matter from: - ANSWER A solid to a gas The alternation of the properties of matter without formation of any new substances is called? - ANSWER Physical change The immediate change of a solid into vapour is called? - ANSWER Sublimation An example of a single called cellular organism is? - ANSWER A bacterium Examples of bacteria are? - ANSWER Bacilli and cocci Which of the following belongs to the science of chemistry? - ANSWER The alternation of the structure of molecules An electrolyte is? - ANSWER A substance which, dissolved in water and splits into ION's Example of electrolytes are? - ANSWER Acids and salts An example of an electrolyte is? - ANSWER Salt solution An acid is an electrolyte because? - ANSWER It can conduct an electrical current An example of an inorganic acid is? - ANSWER Sulphuric acid An alkali must contain? - ANSWER Metal atoms and hydroxyl groups If metal oxide is dissolved in water it forms? - ANSWER An alkali PH can be decreased by? - ANSWER Increasing hydrogen ions pH is? - ANSWER The number of free H ions in a solution The pH of the skins acid mantle is? - ANSWER 5.5 A characteristic of a weak acid is that it? - ANSWER Supports the natural pH of the skin A characteristic of organic acids is that? - ANSWER They contain the element carbon Organic acids are found in? - ANSWER Sebum and plants An organic acid contains the chemical group? - ANSWER COOH When do the electrodes in electrotherapy have to be moistened or to be applied on moistened skin? - ANSWER In iontophoresis and not short wave diathermy In physics radiation means? - ANSWER The electro magnetic waves in space An indication for a treatment with infra red rays is? - ANSWER A poor blood circulation in the skin Which of the following radiation had the most anti bacterial effect? - ANSWER UVC What is the safest radiation that can be used to increase pigmentation? - ANSWER UVA Which rays are mostly used in ray treatments to increase pigmentation? - ANSWER UVA and UVB The radiation mainly responsible for tanning the skin is? - ANSWER UVA Which electric currents can be used in electrotherapy? - ANSWER High frequency currents of high voltage Which electric currents can be used in electrotherapy? - ANSWER High frequency and middle frequency currents of both low voltage Which electrical currents can be used in electrotherapy? - ANSWER Faradic and galvanic currents both of low voltage Examples of liquid conductors are? - ANSWER Fluids in which ions are present Examples of liquid conductors are? - ANSWER Body fluids and alkali solutions In an electrical circuit if the voltage is doubled and the resistance halved the intensity of the current is? - ANSWER Increase 4 times The phase of mitosis during which the centrioles ready the end of the cell? - ANSWER Metaphase