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CIDESCO Exam Prep: Biology and Chemistry for Beauty Therapy, Exams of Cosmetology

A comprehensive overview of basic biology and chemistry concepts relevant to beauty therapy. It covers topics such as the characteristics of life, matter, chemical reactions, ph, electricity, and radiation. Numerous questions and answers, making it a valuable resource for students preparing for the cidesco exam.

Typology: Exams

2023/2024

Available from 02/07/2025

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CIDESCO Exam Prep | 2024 Questions & Answers |
100% Correct | Verified
I Biological and non-biological substances both need oxygen for their existence. II The human body
consists only of biological substances. - ✔✔I is correct and II is incorrect
Characteristics of life include: - ✔✔growth and metabolism
Examples of synthetic substances are: - ✔✔plastics and silicones
Examples of organic biological substances are: - ✔✔carbohydrates and fats
Examples of mineral substances are: - ✔✔paraffins and petroleum
Matter is everything that: - ✔✔occupies space and has weight
The three forms of matter are solids, liquids and: - ✔✔gases
What property does all matter have? - ✔✔All matter has weight
Condensation is the change of matter from: - ✔✔a gas to a liquid
Vapourisation is the change of matter from: - ✔✔liquid to a gas
Melting is the change of matter from: - ✔✔a solid to a liquid
Sublimation is the change of matter from: - ✔✔a solid to a gas
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CIDESCO Exam Prep | 2024 Questions & Answers |

100% Correct | Verified

I Biological and non-biological substances both need oxygen for their existence. II The human body consists only of biological substances. - ✔✔I is correct and II is incorrect Characteristics of life include: - ✔✔growth and metabolism Examples of synthetic substances are: - ✔✔plastics and silicones Examples of organic biological substances are: - ✔✔carbohydrates and fats Examples of mineral substances are: - ✔✔paraffins and petroleum Matter is everything that: - ✔✔occupies space and has weight The three forms of matter are solids, liquids and: - ✔✔gases What property does all matter have? - ✔✔All matter has weight Condensation is the change of matter from: - ✔✔a gas to a liquid Vapourisation is the change of matter from: - ✔✔liquid to a gas Melting is the change of matter from: - ✔✔a solid to a liquid Sublimation is the change of matter from: - ✔✔a solid to a gas

Condensation is: - ✔✔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: - ✔✔physical change The immediate change of a solid into a vapour is called: - ✔✔sublimation An example of a single-celled cellular organism is: - ✔✔a bacterium I. A micro-organism is the smallest part of the human body. II All micro-organisms need nutrients for their existence. - ✔✔I is incorrect and II is correct Examples of bacteria are: - ✔✔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. - ✔✔I is correct and II is incorrect Science deals mainly with: - ✔✔physics and chemistry The study of the structure of the body is called: - ✔✔anatomy The study of the functions of living organisms is: - ✔✔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. - ✔✔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. - ✔✔I and II are both correct

An example of an alkaline substance is: - ✔✔soap If a metal-oxide is dissolved in water it forms: - ✔✔an alkali The pH scale is used to measure the degree of acidity or: - ✔✔alkalinity pH can be decreased by: - ✔✔increasing hydrogen-ions The letter p in pH means: - ✔✔potential pH is: - ✔✔the number of free H-ions in solution If the pH of a solution is between 5 and 7, the solution is a: - ✔✔weak acid If the pH of a solution is between 1 and 3 the solution is a: - ✔✔strong acid If the pH of a solution is between 7 and 9 the solution is a: - ✔✔weak alkali If the pH of a solution is between 12 and 14 the solution is: - ✔✔strong alkali The pH of distilled water is: - ✔✔ 7 Lemon juice, with a pH reading of about 2, is considered to be: - ✔✔acid Pure water, with a pH of 7, is considered to be: - ✔✔neutral Substances having a pH value above 9.5 are considered to be: - ✔✔alkaline

The pH of the skin's acid mantle is: - ✔✔5. A characteristic of a weak acid is that it: - ✔✔supports the natural pH of the skin A characteristic of a weak alkali is that it: - ✔✔softens the stratum corneum of the skin The effect of a strong acid is: - ✔✔corrosive and therefore of no use in beauty therapy A characteristic of organic acids is that: - ✔✔they contain the element carbon (C) Organic acids are found in: - ✔✔sebum and plants An organic acid contains the chemical-group: - ✔✔COOH An anode is: - ✔✔A positively charged electrode A cathode is: - ✔✔A negatively charged electrode Examples of electrodes which are used in beauty therapy are: - ✔✔the needles used for galvanic electrolysis In physics, radiation means: - ✔✔the electro-magnectic waves in space system The unit of frequency is: - ✔✔Hertz In physics, frequency means: - ✔✔the number of times per second an electro-magnetic-wave can change direction

What is the safest radiation that can be used to increase pigmentation? - ✔✔UV-A Which rays are mostly used in ray-treatments to increase pigmentation? - ✔✔UV-A and UV-B Ultra-violet radiation is absorbed: - ✔✔mainly in the epidermis The radiation mainly responsible for tanning the skin is: - ✔✔UV-A Skin cancer is most likely caused by: - ✔✔Ultra-violet An electric current is: - ✔✔A flow of electrons Which electric currents can be used in electrotherapy? - ✔✔High frequency currents of high voltage Which electric currents can be used in electrotherapy? - ✔✔High frequency and middle frequency currents both of low voltage Which electric currents can be used in electrotherapy? - ✔✔Faradic and galvanic currents both of low voltage Examples of solid conductors are: - ✔✔metals Examples of liquid conductors are: - ✔✔fluids in which ions are present Examples of liquid conductors are: - ✔✔body fluids and alkali solutions Which gas can conduct electric current? - ✔✔neon

Examples of insulators are: - ✔✔plastics An example of an insulator is: - ✔✔rubber The strength of an electric current is measured by it's: - ✔✔amperage The pressure of an electric current is measured by it's: - ✔✔voltage The power of an electrical appliance is measured by it's: - ✔✔wattage In an electrical circuit if the voltage is doubled and the resistance halved, the intensity of the current is: - ✔✔is increased four times The unit of current strength is: - ✔✔ampere The unit of current pressure is: - ✔✔volt The unit of electrical resistance is: - ✔✔ohm The unit of electrical power is: - ✔✔watt A current with a constant strength used in beauty therapy is called: - ✔✔galvanic A so-called "faradic type current" is: - ✔✔An interrupted galvanic current The current that is used to tone muscles is called: - ✔✔faradic

The electrical device that changes alternating current into direct current is a: - ✔✔rectifier The function of a rectifier is to change: - ✔✔an alternating current into a galvanic current When do the electrodes in electrotherapy have be moistened or to be applied on a moistened skin? - ✔✔in iontophoresis and not short wave diathermy What can occur if galvanic electrode is not applied to the skin with a regular pressure all over the surface of the electrode: - ✔✔on the spot of the highest pressure skin burning can occur The electrical device that changes voltage is called a: - ✔✔transformer The function of a transformer is to change: - ✔✔the voltage of an alternating current to a different voltage A fuse is an electrical device that: - ✔✔protects apparatus or circuits from overloading A fuse in an electrical apparatus: - ✔✔is the weakest part of the electrical circuit The safety practises that should be observed in a beauty salon when using electrical appliances: - ✔✔are the responsibility of the employer of the salon The smallest structural unit in the hunan body is called the: - ✔✔cell The study of the structure of the body is called: - ✔✔anatomy The study of the functions of the human body is: - ✔✔physiology The outer wall of a cell is called the: - ✔✔cell membrane

Deoxyribonucleic acid or D.NA: - ✔✔carries genetic information Which of the following is the genetic material of the cell? - ✔✔DNA The main part of the cell which contains protoplasm is the: - ✔✔cytoplasm The nucleus of a cell is directly surrounded by: - ✔✔the nuclear membrane The part of the cell in contact with it's environment is the: - ✔✔cell membrane The part of a cell that controls the activities of the cell is the: - ✔✔nucleus The nucleus of a cell contains: - ✔✔DNA The nucleus of a cell contains: - ✔✔nucleoli Meiosis is a process concerned with: - ✔✔body division of a sex cell The process of cell division where the mother cell divides into two identical daughter cells is called: - ✔✔mitosis The phase of mitosis during which centrioles reach the ends of the cell is: - ✔✔metaphase The last stage of mitosis is known as: - ✔✔telophase The phase of mitosis in which the chromatin of the nucleus forms chromosomes is: - ✔✔prophase

Impulses can be transmitted throughout the body by: - ✔✔nervous tissue Tissue found lining the surfaces of organ is: - ✔✔epithelial Flat, scale-like epithelial cells are anatomically referred to as: - ✔✔squamous Which one of the following is NOT formed from connective tissue? - ✔✔the epidermis The characteristic tissue of skin glands is: - ✔✔epithelial tissue Which one of the following is NOT a function of epithelial tissue? - ✔✔contraction Simple squamous epithelium is found: - ✔✔in the alveoli of lungs Simple cuboidal epithelium is found: - ✔✔in kidney tubules Which of the following organs is lined with stratified epithelium? - ✔✔mouth A gland which produces it's secretion as the entire cell disintegrates is known as: - ✔✔The holocrine gland Tissue found supporting organs is called: - ✔✔connective An example of connective tissue is: - ✔✔cartilage Blood is a specialised kind of: - ✔✔connective tissue Which one of the following is NOT composed of dense connective tissue? - ✔✔adipose tissue

Loose connective tissue specialising in fat storage is: - ✔✔adipose tissue Tendons are made of: - ✔✔collagen What type of connective tissue is found in the wall of an artery? - ✔✔elastin The connective tissue which contains many collagenous fibres embedded within a firm matrix is: - ✔✔cartilage Connective tissue serving as a shock absorber in joints is: - ✔✔cartilage Cartilage that has a bluish matrix and few fibres is: - ✔✔hyaline cartilage All the chemical processes that take place in living organisms is known as: - ✔✔metabolism The metabolic process in which energy is liberated by the destruction of complex substances is known as: - ✔✔catabolism The metabolic process in which simple substances converted into more complex compounds is known as: - ✔✔anabolism During a period of cell growth: - ✔✔more anabolism than catabolism takes place Metabolism mainly takes place in: - ✔✔the cytoplasm The heat-producing power of foods is measured in units of energy called: - ✔✔joules A joule is: - ✔✔A unit of energy

The ribs are movably connected to: - ✔✔the thoracic vertebrae The number of pairs of ribs in the body is: - ✔✔ 12 The shoulder blade is known as the: - ✔✔scapula The names of the two bones articulating in the ball and socket joint of the upper arm are the: - ✔✔humerus and scapula The correct name for the collar bone is the: - ✔✔clavicle Which one of the following bones would be classified as a short bone? - ✔✔carpal The hand consists of A. ___ carpals and B. ___ metacarpals: - ✔✔A: 8 B: 5 Which one of the following is the 'odd bone out'? - ✔✔patella The type of joint found at the knee is the: - ✔✔hinge Which one of the following does NOT have any moveable joints? - ✔✔cranium An example of a fixed joint is: - ✔✔the bones of the skull In the hip joint, the synovial membrane lines the: - ✔✔ligament of the head of the femur "Front" and "back" are equivalent to: - ✔✔anterior and posterior "Up" and "down" are equivalent to: - ✔✔superior and inferior

A sagittal plane divides the body into: - ✔✔left and right parts A transverse plane divides the body into: - ✔✔superior and inferior parts The main function of muscle tissue is to provide: - ✔✔movement Which one of the following statements is INCORRECT? - ✔✔The only action a muscle can perform is contraction Which one of the following type of muscle is considered to be under voluntary nervous control? - ✔✔skeletal Which one of the following is NOT a characteristic of skeletal or voluntary muscle? - ✔✔action is slower than that controlled by smooth muscle Which one of the following is NOT characteristic of involuntary muscle? - ✔✔under the control of the will Muscles allow movement to take place by: - ✔✔contraction and relaxation The contractive part of a muscle is the: - ✔✔belly Flexion of the hip joint is carried out by the: - ✔✔rectus femoris The muscle which flexes the thigh and leg is the: - ✔✔sartorius The zygomatic arch gives origin to the: - ✔✔masseter

The cells responsible for the defence of the body are: - ✔✔white blood cells The blood cells which do not have a nucleus are: - ✔✔erythrocytes Blood cells are formed in the: - ✔✔bones The destruction of red blood cells takes place in the: - ✔✔liver After birth, red blood cells are made in the: - ✔✔bone marrow Which one of the following minerals is used to produce haemoglobin? - ✔✔iron The function of white blood cells is to: - ✔✔destroy bacteria The name of the substances which stimulate the production of anti-bodies in the blood is called: - ✔✔antigens The component of blood responsible for the manufacture of antibodies is: - ✔✔lymphocytes The substances produced in the body which destroy or neutralise foreign substances are called: - ✔✔antibodies Defence against antigens does NOT take place by: - ✔✔erythrocytes The component of blood mostly concerned with the control of infection is: - ✔✔white blood cells The component of blood which plays an important role in clotting is: - ✔✔platelets The primary function of thrombocytes is to: - ✔✔play a role in blood clotting

Which vitamin causes an increase in clotting time of blood when it is deficient? - ✔✔K When blood clots, the soluble substance which becomes insoluble is called: - ✔✔fibrinogen The following processes occur after blood has come into contact with damaged tissue: 1. thrombokinase produced by platelets 2. thrombin combines with fibrinogen 3. production of a fibrin net 4. calcium and prothrombin combined. The correct order in which they appear is: - ✔✔ 1423 Calcium in the blood is necessary for: - ✔✔blood coagulation Deoxygenated blood enters the heart by the: - ✔✔right atrium The name of the cavity in which the heart lies is called: - ✔✔pericardial cavity When the ventricles of the heart contract the: - ✔✔aortic and pulmonary valves open Blood is prevented from returning to the ventricles after they have completed their contractions by the: - ✔✔semilunar valves Which one of the following chambers of the heart pumps blood to the lungs? - ✔✔right ventricle The average rate of heart beat of a healthy adult in rest in number of beats per minute is: - ✔✔ 70 The right ventricle and the left atrium are connected by the: - ✔✔the pulmonary circulation The blood vessel that collects blood from the digestive organs is the: - ✔✔hepatic portal vein