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CIDESCO Practice Questions V2.
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CIDESCO Practice Questions V2.
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CIDESCO Practice Questions V2Which statements are correct?
1. Every living organism needs some non-biological substances for its existence.
2. All non-biological substances are found as minerals in the earth. - ANS-1 and 2 are
incorrect
Characteristics of life include? - ANS-Growth and Metabolism
Examples of organic biological substances are? - ANS-Carbohydrates and Fats
Examples of minerals substances are? - ANS-Paraffins and Petroleum
Matter is everything that? - ANS-Occupies space and has weight
Condensation is the change of matter from? - ANS-A gas to a liquid
Vaporization is the change of matter from? - ANS-A liquid to a gas
Melting is the change of matter from? - ANS-A solid to a liquid
Sublimation is the change of matter from? - ANS-A solid to a gas
Condensation is? - ANS-The change of a vapour to a liquid
An example of a single-celled cellular organism is? - ANS-A bacterium
Which are correct?
1. A micro-organism is the smallest part of the human body.
2. All micro-organisms need nutrients for their existence - ANS-1 is incorrect, 2 is
correct
Science deals mainly with? - ANS-Physics and chemistry
The study of the functions of living organisms is? - ANS-Physiology
Which are correct?
1. Anatomy is a very important science in the field of biology.
,2. Anatomy is the science which deals with the functions of the human body. - ANS-1. is
correct
2. is incorrect
Which are correct?
1. Physiology is very important science in the field of biology.
2. Physiology is the science which deals with the functions of the body - ANS-1 and 2
are correct
Which one of the following belongs to the science of chemistry? - ANS-The alteration of
the structure of molecules
Which are correct?
1. Chemical reactions only take place outside and not inside a living organism.
2. The structure of molecules change during chemical reactions. - ANS-1. is incorrect
2. is correct
The field of physics includes? - ANS-heat and electricity
An anion is a? - ANS-Negatively charged atom
A cation is a? - ANS-Positively charged sodium atom (Na+)
An electrolyte is a? - ANS-salt-solution
An acid is an electrolyte because? - ANS-it can conduct an electric current
pH can be decreased by? - ANS-increasing hydrogen-ions
pH is? - ANS-the number of free h-ions in a solution
If the pH of a solution is between 5 and 7, the solution is a? - ANS-Weak Acid
If the pH of a solution is between 7 and 9, the solution is a? - ANS-Weak Alkali
The pH of distilled water is? - ANS-7
Lemon juice, with a pH reading of about 2, is considered to be? - ANS-Acidic
Substances having a pH value above 9.5 are considered to be? - ANS-Alkaline
,The pH of the skin's acid mantle is? - ANS-5.5
A characteristic of a weak acid is that it? - ANS-Supports the natural pH of the skin
A characteristic of organic acids is that? - ANS-They contain the element carbon (C)
An organic acid contains the chemical group? - ANS-C00H
An anode is a? - ANS-Positively charged electrode
A cathode is a? - ANS-Negatively charged electrode
Examples of electrodes which are used in beauty therapy are? - ANS-The needles used
for galvanic electrolysis
In physics, radiation means? - ANS-The electro-magnetic waves in space
In physics, frequency means? - ANS-The number of times per second an
electro-magnetic-wave can change direction
Hertz, is a unit of? - ANS-Frequency
In the visible spectrum the colours in the correct order are? - ANS-Green, blue, indigo,
and violet
Invisible rays which can be used in beauty therapy are? - ANS-Infra-red and ultra-violet
rays
Infra-red radiations? - ANS-Invisible and can be felt
Infra-red rays can be used in beauty therapy for? - ANS-Warming
The effect of infra-red rays on the skin is to? - ANS-Warm the deeper layers of the skin
An indication for a treatment with infra-red rays is? - ANS-Poor blood circulation in the
skin
A contra-indication to treatment with infra-red radiation is? - ANS-Skin showing
telangectasia on the cheek area
, Infra-red radiation is used to? - ANS-Warm the tissues before massage
Ultra-violet radiation can be useful in beauty therapy because of the? - ANS-Chemical
effects on the skin
Which of the following radiation has the most anti-bacterial effect? - ANS-UVC
Ultra-violet radiation is absorbed? - ANS-Mainly in the epidermis and muscles
Skin cancer is most likely caused by? - ANS-Ultra-violet
Which electric currents can be used in electrotherapy? - ANS-High frequency currents
of high voltage
Which electric currents can be used in electrotherapy? - ANS-Faradic and galvanic
currents both of high voltage
Examples of solid conductors are? - ANS-Metals
Examples of liquid conductors are? - ANS-Fluids in which ions are present
An example of an insulator is? - ANS-Rubber
The strength of an electric current is measured by its? - ANS-Amperage
The pressure of an electric current is measured by its?
A- voltage
B- amperage
C-wattage
D- frequency - ANS-Voltage
The power of an electrical appliance is measured by its? - ANS-Wattage
In an electrical circuit, if the voltage is doubled and the resistance halved, the intensity
of the current is? - ANS-Increased four times
The unit of electrical resistance is? - ANS-Ohm
The unit of electrical power is? - ANS-Watt
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