CIDESCO Exam Prep
I Biological and non-biological substances both need oxygen for their existence. II The
human body consists only of biological substances. - Answers -I is correct and II is
incorrect
Characteristics of life include: - Answers -growth and metabolism
Examples of synthetic substances are: - Answers -plastics and silicones
Examples of organic biological substances are: - Answers -carbohydrates and fats
Examples of mineral substances are: - Answers -paraffins and petroleum
Matter is everything that: - Answers -occupies space and has weight
The three forms of matter are solids, liquids and: - Answers -gases
What property does all matter have? - Answers -All matter has weight
Condensation is the change of matter from: - Answers -a gas to a liquid
Vapourisation is the change of matter from: - Answers -liquid to a gas
Melting is the change of matter from: - Answers -a solid to a liquid
Sublimation is the change of matter from: - Answers -a solid to a gas
Condensation is: - Answers -the change of a vapour to a liquid
The alteration of the properties of matter without the formation of any new substance is
called a/an: - Answers -physical change
The immediate change of a solid into a vapour is called: - Answers -sublimation
An example of a single-celled cellular organism is: - Answers -a bacterium
I. A micro-organism is the smallest part of the human body. II All micro-organisms need
nutrients for their existence. - Answers -I is incorrect and II is correct
Examples of bacteria are: - Answers -bacilli and cocci
,I. Every living organism needs some non-biological substances for it's existence. II. All
non-biological substances are found as minerals in the earth. - Answers -I is correct and
II is incorrect
Science deals mainly with: - Answers -physics and chemistry
The study of the structure of the body is called: - Answers -anatomy
The study of the functions of living organisms is: - Answers -physiology
I Anatomy is a very important science in the field of biology. II Anatomy is the science
which deals with the functions of the human body. - Answers -I is correct and II is
incorrect
I Physiology is a very important science in the field of biology. II Physiology is the
science which deals with the functions of the body. - Answers -I and II are both correct
Which one of the following belongs to the science of chemistry? - Answers -The
alteration of the structure of molecules
I Chemical reactions only take place outside and not inside a living organism. II The
structure of molecules change during chemical reactions. - Answers -I is incorrect and II
is correct
The field of physics includes: - Answers -heat and electricity
Which one of the following belongs to the field of physics? - Answers -Sound, electricity
and heat
The field of physics includes: - Answers -the science of electricity
An anion is: - Answers -A negatively charged atom
An anion is: - Answers -a negatively charged chloride atom (CI-)
A cation is: - Answers -A positively charged sodium atom (Na+)
An electrolyte is: - Answers -A substance which, dissolved in water, splits into ions
Examples of electrolytes are: - Answers -acids and salts
An example of an electrolyte is: - Answers -salt-solution
An acid is an electrolyte because: - Answers -it can conduct an electric current
An example of an inorganic acid is: - Answers -sulphuric acid
,An alkali must contain: - Answers -metal atoms and hydroxyl group(s) (OH)
An example of an alkaline substance is: - Answers -soap
If a metal-oxide is dissolved in water it forms: - Answers -an alkali
The pH scale is used to measure the degree of acidity or: - Answers -alkalinity
pH can be decreased by: - Answers -increasing hydrogen-ions
The letter p in pH means: - Answers -potential
pH is: - Answers -the number of free H-ions in solution
If the pH of a solution is between 5 and 7, the solution is a: - Answers -weak acid
If the pH of a solution is between 1 and 3 the solution is a: - Answers -strong acid
If the pH of a solution is between 7 and 9 the solution is a: - Answers -weak alkali
If the pH of a solution is between 12 and 14 the solution is: - Answers -strong alkali
The pH of distilled water is: - Answers -7
Lemon juice, with a pH reading of about 2, is considered to be: - Answers -acid
Pure water, with a pH of 7, is considered to be: - Answers -neutral
Substances having a pH value above 9.5 are considered to be: - Answers -alkaline
The pH of the skin's acid mantle is: - Answers -5.5
A characteristic of a weak acid is that it: - Answers -supports the natural pH of the skin
A characteristic of a weak alkali is that it: - Answers -softens the stratum corneum of the
skin
The effect of a strong acid is: - Answers -corrosive and therefore of no use in beauty
therapy
A characteristic of organic acids is that: - Answers -they contain the element carbon (C)
Organic acids are found in: - Answers -sebum and plants
An organic acid contains the chemical-group: - Answers -COOH
, An anode is: - Answers -A positively charged electrode
A cathode is: - Answers -A negatively charged electrode
Examples of electrodes which are used in beauty therapy are: - Answers -the needles
used for galvanic electrolysis
In physics, radiation means: - Answers -the electro-magnectic waves in space system
The unit of frequency is: - Answers -Hertz
In physics, frequency means: - Answers -the number of times per second an electro-
magnetic-wave can change direction
The unit of frequency is: - Answers -Hertz
Hertz is a unit of: - Answers -frequency
In the visible spectrum the colours in the correct order are: - Answers -red, orange,
yellow and green
In the visible spectrum the colours in the correct order are: - Answers -green, blue,
indigo and violet
Invisible rays which can be used in beauty therapy are: - Answers -infra-red and ultra-
violet rays
Infra-red radiation: - Answers -is invisible and can be felt
Infra-red radiation is absorbed: - Answers -in the dermis and muscles
Infra-red rays can be used in beauty therapy for: - Answers -warming
The effect of infra-red rays on the skin is to: - Answers -warm the deeper layers of the
skin
An indication for a treatment with infra-red rays is: - Answers -a poor blood circulation in
the skin
A contra-indication to treatment with infra-red radiation is: - Answers -skin showing
teleangiectasias on the cheek area
Infra-red radiation is used: - Answers -to warm the tissues before massage
I Biological and non-biological substances both need oxygen for their existence. II The
human body consists only of biological substances. - Answers -I is correct and II is
incorrect
Characteristics of life include: - Answers -growth and metabolism
Examples of synthetic substances are: - Answers -plastics and silicones
Examples of organic biological substances are: - Answers -carbohydrates and fats
Examples of mineral substances are: - Answers -paraffins and petroleum
Matter is everything that: - Answers -occupies space and has weight
The three forms of matter are solids, liquids and: - Answers -gases
What property does all matter have? - Answers -All matter has weight
Condensation is the change of matter from: - Answers -a gas to a liquid
Vapourisation is the change of matter from: - Answers -liquid to a gas
Melting is the change of matter from: - Answers -a solid to a liquid
Sublimation is the change of matter from: - Answers -a solid to a gas
Condensation is: - Answers -the change of a vapour to a liquid
The alteration of the properties of matter without the formation of any new substance is
called a/an: - Answers -physical change
The immediate change of a solid into a vapour is called: - Answers -sublimation
An example of a single-celled cellular organism is: - Answers -a bacterium
I. A micro-organism is the smallest part of the human body. II All micro-organisms need
nutrients for their existence. - Answers -I is incorrect and II is correct
Examples of bacteria are: - Answers -bacilli and cocci
,I. Every living organism needs some non-biological substances for it's existence. II. All
non-biological substances are found as minerals in the earth. - Answers -I is correct and
II is incorrect
Science deals mainly with: - Answers -physics and chemistry
The study of the structure of the body is called: - Answers -anatomy
The study of the functions of living organisms is: - Answers -physiology
I Anatomy is a very important science in the field of biology. II Anatomy is the science
which deals with the functions of the human body. - Answers -I is correct and II is
incorrect
I Physiology is a very important science in the field of biology. II Physiology is the
science which deals with the functions of the body. - Answers -I and II are both correct
Which one of the following belongs to the science of chemistry? - Answers -The
alteration of the structure of molecules
I Chemical reactions only take place outside and not inside a living organism. II The
structure of molecules change during chemical reactions. - Answers -I is incorrect and II
is correct
The field of physics includes: - Answers -heat and electricity
Which one of the following belongs to the field of physics? - Answers -Sound, electricity
and heat
The field of physics includes: - Answers -the science of electricity
An anion is: - Answers -A negatively charged atom
An anion is: - Answers -a negatively charged chloride atom (CI-)
A cation is: - Answers -A positively charged sodium atom (Na+)
An electrolyte is: - Answers -A substance which, dissolved in water, splits into ions
Examples of electrolytes are: - Answers -acids and salts
An example of an electrolyte is: - Answers -salt-solution
An acid is an electrolyte because: - Answers -it can conduct an electric current
An example of an inorganic acid is: - Answers -sulphuric acid
,An alkali must contain: - Answers -metal atoms and hydroxyl group(s) (OH)
An example of an alkaline substance is: - Answers -soap
If a metal-oxide is dissolved in water it forms: - Answers -an alkali
The pH scale is used to measure the degree of acidity or: - Answers -alkalinity
pH can be decreased by: - Answers -increasing hydrogen-ions
The letter p in pH means: - Answers -potential
pH is: - Answers -the number of free H-ions in solution
If the pH of a solution is between 5 and 7, the solution is a: - Answers -weak acid
If the pH of a solution is between 1 and 3 the solution is a: - Answers -strong acid
If the pH of a solution is between 7 and 9 the solution is a: - Answers -weak alkali
If the pH of a solution is between 12 and 14 the solution is: - Answers -strong alkali
The pH of distilled water is: - Answers -7
Lemon juice, with a pH reading of about 2, is considered to be: - Answers -acid
Pure water, with a pH of 7, is considered to be: - Answers -neutral
Substances having a pH value above 9.5 are considered to be: - Answers -alkaline
The pH of the skin's acid mantle is: - Answers -5.5
A characteristic of a weak acid is that it: - Answers -supports the natural pH of the skin
A characteristic of a weak alkali is that it: - Answers -softens the stratum corneum of the
skin
The effect of a strong acid is: - Answers -corrosive and therefore of no use in beauty
therapy
A characteristic of organic acids is that: - Answers -they contain the element carbon (C)
Organic acids are found in: - Answers -sebum and plants
An organic acid contains the chemical-group: - Answers -COOH
, An anode is: - Answers -A positively charged electrode
A cathode is: - Answers -A negatively charged electrode
Examples of electrodes which are used in beauty therapy are: - Answers -the needles
used for galvanic electrolysis
In physics, radiation means: - Answers -the electro-magnectic waves in space system
The unit of frequency is: - Answers -Hertz
In physics, frequency means: - Answers -the number of times per second an electro-
magnetic-wave can change direction
The unit of frequency is: - Answers -Hertz
Hertz is a unit of: - Answers -frequency
In the visible spectrum the colours in the correct order are: - Answers -red, orange,
yellow and green
In the visible spectrum the colours in the correct order are: - Answers -green, blue,
indigo and violet
Invisible rays which can be used in beauty therapy are: - Answers -infra-red and ultra-
violet rays
Infra-red radiation: - Answers -is invisible and can be felt
Infra-red radiation is absorbed: - Answers -in the dermis and muscles
Infra-red rays can be used in beauty therapy for: - Answers -warming
The effect of infra-red rays on the skin is to: - Answers -warm the deeper layers of the
skin
An indication for a treatment with infra-red rays is: - Answers -a poor blood circulation in
the skin
A contra-indication to treatment with infra-red radiation is: - Answers -skin showing
teleangiectasias on the cheek area
Infra-red radiation is used: - Answers -to warm the tissues before massage
