Physique-Biophysique Preparation (Sreng Thearith, Msc.)

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401

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Could you list two hazardous substances that can be secreted from plastics from our lesson?

a. bisphenol-A (BPA) and polyvinylchloride (PVC)

b. polyvinylchloride (PVC) and di-(2-ethylhexyl)phthalate (DEHP)

c. bisphenol-A (BPA) and di-(2-ethylhexyl)phthalate (DEHP)

d. bisphenol-A (BPA) and propylenglycol (PEG)

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What is “suspension”?

a. A type of destabilized colloid system in which the particles aggregate much together with their intact film

b. A type of destabilized colloid system in which the particles fused together with their disrupted film

c. Type of a coarse dispersion composed of insoluble particles (external phase) sizing from 0.5 to 5 μm and internal phase generally aqueous

d. Type of a coarse dispersion composed of insoluble particles (internal phase) sizing from 0.5 to 5 μm and external phase generally aqueous

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Foams is one of colloidal system that composed by ?

a. Dispersed phase as gas and dispersed medium as liquid

b. Dispersed phase liquid and dispersed medium as liquid

c. Dispersed phase as solid and dispersed medium as liquid

d. Dispersed phase as liquid and dispersed medium as gas

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The unstable form of colloid system that allow to produce in pharmaceutical dosage form for treatment patient illness?

a. suspension

b. solution

c. emulsion

d. Syrup

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Comparé à l’air atmosphérique, l’air alvéolaire est : (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Plus riche en O2 et moins riche en CO2

b. Plus riche en CO2 et moins riche en O2

c. Moins riche en O2 et moins riche en CO2

d. Plus riche en O2 et plus riche en CO2

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Au cours de la phase de repolarisation cardiaque, il y a ? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Entrée de K+

b. Entrée de Na+

c. Sortie de Na+

d. Sortie de K+

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Between covalently-joined polymers and secondary-force polymers, which ones have higher melting point?

a. Covalently-joined higher

b. secondary-force higher

c. Both are low melting point

d. Covalently-joined and secondary-force are the same

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Quel est le rôle du cœur (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Pomper le sang

b. Filtrer le sang

c. Absorber le sang

d. Conduire le sang

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Which phrase explain about temperature factor affecting on surface tension?

a. surface tension increase the temperature of solution

b. surface tension increase with increase of temperature

c. surface tension decrease with decrease of temperature

d. surface tension decrease with increase temperature

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10)

Quel vaisseau sanguin transporte le sang du cœur à toutes les parties du corps ? (ជ្រើសរើសចម្លើយត្រូវមួយ)

a. aorte

b. veine cave

c. veine pulmonaire

d. artère pulmonaire

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11)

Explain « oligomer » ?

a. The explanation are wrong

b. chemical compounds with very high molecular weight, long chain molecules formed of a large number of basic repetitive units

c. built from the same monomer units as polymers, but their chain is much shorter (MM<10kDa)

d. are compounds of the same or different organic/inorganic atomic groupings of low molecular weight

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12)

Dans la circulation sanguine: (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. La pression augmente de l’aorte jusqu’au niveau des capillaires

b. Le sang est un fluide Newtonien

c. Le travail du cœur est surtout un travail cinétique

d. La vitesse d’écoulement diminue de l’aorte jusqu’au niveau des capillaires

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13)

What are the “two reversible states” during phase separation of colloid?

a. Coalescence an flocculation

b. Flocculation and sedimentation

c. Sedimentation and Creaming

d. Creaming and coalescence

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14)

Lors de l’écoulement du sang dans les vaisseaux sanguins, la viscosité sanguine dépend de : (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. La fréquence cardiaque

b. La pression hydrostatique sanguine

c. La concentration du sang en macromolécules

d. La viscosité du plasma sanguin

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15)

Explain the difference between “detergent and disinfectant”?

a. Disinfectant is for cleaning and detergent is for killing/inactivate germs

b. Disinfectant and detergent are for killing/inactivate germs

c. Detergent is for cleaning and disinfectant is for killing/inactivate germs

d. Disinfectant and detergent is for cleaning

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16)

L’échange gazeux entre l’air et le sang se fait dans: (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Le trachée

b. Les bronches

c. Les bronchioles

d. Les alvéoles

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17)

Le sang quittant les poumons est enrichi en (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. monoxyde de carbone.

b. dioxygène,

c. diazote,

d. dioxyde de carbone,

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18)

What is “polymer gelation”?

a. a novel state of matter having both solid and liquid-like properties and has both fluidity and elasticity.

b. built from the same monomer units as polymers, but their chain is much shorter (MM<10kDa)

c. chemical compounds with very high molecular weight, long chain molecules formed of a large number of basic repetitive units

d. are compounds of the same or different organic/inorganic atomic groupings of low molecular weight

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19)

Differentiate between “crystalloid solution and colloid solution” (common IVF)?

a. Colloid solution composed of electrolytes while crystalloid solution composed of solutes

b. Colloid solution is type of light scattering effect by particles which is present for Emulsion

c. Crystalloid solution is type of light scattering effect by particles which is present for transparent liquid

d. Colloid solution composed of solutes while crystalloid composed of electrolytes

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20)

Pulmonary surfactant is a mixture of lipids and proteins which is secreted by the epithelial type II cells into the alveolar space. Its main function is?

a. to reduce the surface tension at the liquid/liquid interface in the lung.

b. to increase the surface tension at the air/liquid interface in the lung.

c. to reduce the surface tension at the air/liquid interface in the lung.

d. to increase the surface tension at the liquid/liquid interface in the lung.

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21)

Parmi les propositions suivantes, une seule est inexacte, laquelle ? (ជ្រើសរើសចម្លើយខុសមួយ) ?

a. Le cœur n’est pas une pulsation continue, mais l’éjections systoliques

b. Les globules rouges peuvent passer facilement à travers les capillaires de petits calibres

c. Le sang n’est pas un liquide newtonien

d. Les vaisseaux n’ont pas de canalisations de sections constantes

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22)

Au cours de la phase de dépolarisation cardiaque, il y a ? (ជ្រើសរើសចម្លើយត្រូវមួយ)

a. Entrée de Na+

b. Sortie de K+

c. Sortie de Na+

d. Entrée de K+

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23)

How many groups of plastics are there?

a. 5

b. 4

c. 7

d. 6

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24)

Électrocardiogramme (ECG) : (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Le complexe QRS correspond à la contraction des ventricules

b. Le complexe QRS correspond à la contraction des oreillettes

c. L’onde T correspond à la contraction des ventricules

d. L’onde P correspond à la contraction des ventricules

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25)

Colloidal systems are composed by?

a. Dispersed phase and Particle dispersed

b. Solution and Emulsion

c. Suspension and Solution

d. Dispersed phase and Dispersion medium

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26)

How can emulsifiers stabilize emulsion?

a. The emulsifier positions itself at the oil/water or air/water interface by reducing the surface tension

b. The emulsifier positions itself at the oil/water or air/water interface by reducing the surfactant

c. The emulsifier positions itself at the oil/water or air/water interface by reducing the surface active agent

d. The emulsifier positions itself at the oil/water or air/water interface by reducing the emulgent

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27)

Quel est le sens des échanges entre les alvéoles et le sang (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. L’O2 et le CO2 diffuse du sang vers les alvéoles

b. L’O2 diffuse des alvéoles vers le sang, et le CO2 diffuse du sang vers les alvéoles.

c. L’O2 et le CO2 diffuse des alvéoles vers le sang

d. L’O2 diffuse du sang vers les alvéoles, et le CO2 diffuse des alvéoles vers le sang.

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28)

Characteristics of surface-active agent?

a. Presence of both polar and nonpolar region: 2 tails

b. All are right

c. Soluble in both organic solvents & water

d. Amphipathic (hydrophobic & hydrophilic tails)

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29) បណ្តូររវាងឈាម និង កោសិកា ក្នុងសរីរាង្គប្រព្រឹត្តទៅនៅ ៖ (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. artères et veines

b. artères

c. capillaires

d. veines

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30)

What is the correct definition of « surface tension »?

a. the energy required to minimize the surface area of a liquid by a unit of area

b. the energy required to increase the surface area of a liquid by a unit of area

c. the energy which has to be expended in order to increase the size of the surface of a phase

d. the energy required to decrease the surface area of a liquid by a unit of area

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31)

Que se passe-t-il pendant la systole ventriculaire ? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. La contraction auriculaire

b. Le remplissage auriculaire

c. Le remplissage ventriculaire

d. La contraction ventriculaire

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32)

La trachée est un tube conduisant l’air depuis le nez vers : (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. les plèvres.

b. l’estomac,

c. les bronches,

d. l’intestin grêle,

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33)

Hémoglobine + CO2 ឈ្មោះថា៖ (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Méthémoglobine

b. Carbhémoglobine

c. Oxyhémoglobine

d. Carboxyhémoglobine

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34)

Enregistrement graphique de l’activité électrique du cœur, c’est : (កំណត់ត្រាសកម្មភាពអគ្គិសនីបេះដូង គេហៅថា ៖) ?

a. Le myogramme

b. L’échographie

c. L’EEG

d. L’ECG

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35)

Define “surfactant”/surface-active agent?

a. Substance used to conserve the solution

b. Substance used to stabilize the emulsion

c. Substance that lowers the interfacial tension between two liquids

d. Substance used to create an interfacial tension between two liquids

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36)

What the two components of « colloidal system »?

a. dispersed (solvent) and dispersion medium

b. solution and suspension

c. dispersed phase (particles) + dispersion medium

d. suspension and emulsion

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37)

Le gaz carbonique (dioxyde de carbone) est ramené aux poumons principalement sous quelle forme ? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Dans les globules rouges sous forme de carboxyhémoglobine

b. Dissous dans le plasma

c. Sous forme combiné avec des protéines (carbamates)

d. Sous forme d’ions bicarbonates HCO3-, transportés dans le plasma

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38)

Which one of following proposals is right?

a. Qualitative analysis: determine how much of a constituent species is present in a sample.

b. Quantitative analysis: identify the nature of elements or compounds present in a sample.

c. Quantitative analysis: determine how much of a constituent species is present in a sample.

d. Qualitative analysis: identify the how much of elements or compounds present in a sample.

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39)

How do we characterize “colloidal solution”?

a. Types of dispersed medium and dispersing medium

b. Particle size, Opaque, particles can be separated by filters

c. All are right

d. Particle size, Tyndall effect, filterable using semipermeable membrane

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40) ផលប្រយោជន៍របស់ Surfactant pulmonaire (ជ្រើសរើសចម្លើយខុសមួយ) ?

a. Pour éviter l’atélectasie (collapsus pulmonaire) à la fin de l’expiration

b. un facteur de stabilité pulmonaire

c. Pour augmenter la compliance pulmonaire

d. Pour augmenter les rythmes respiratoires

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41)

Qu’apporte (បញ្ចេញចោល ) l’inspiration au sang ? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. de l’azote

b. de l’air

c. de l’oxygène

d. du dioxyde de carbone

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42)

Is the temperature proportional or disproportional to surface tension?

a. disproportional or proportional sometime

b. disproportional

c. proportional

d. Not in both condition

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43)

The influential factors on surface tension are?

a. temperature, nature of liquid

b. temperature, solvent concentration and nature of liquid

c. solvent concentration and temperature

d. temperature, solute concentration and nature of liquid

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44)

Les circulations pulmonaires et générales sont : (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. assurent une alimentation des organes en sang pauvre en dioxygène

b. assurent une alimentation des organes en sang pauvre en dioxyde d’azote

c. assurent une alimentation des organes en sang riche en dioxygène

d. assurent une alimentation des organes en sang riche en dioxyde d’azote

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45)

What should be the best surfactant for Hair conditioner ?

a. Zwitterrionic/Amphoteric surfactants

b. Nonionic surfactants (Eg. PEG)

c. Anionic surfactants: carboxylate, sulfate and sulfonate ions

d. Cationic surfactants : quartenary ammonium compounds

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46)

What chemical reaction leads to the synthesis of polymer?

a. Hydration

b. Polymerization

c. Oxidation

d. Condensation

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47)

Explain “Tyndall Effect”?

a. A type of light scattering effect by particles which is present for suspension

b. A type of light scattering effect by particles which is present for transparent liquid

c. A type of light scattering effect by particles which is present for solution

d. A type of light scattering effect by particles which is present for colloids

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48)

La pression artérielle : (ជ្រើសរើសចម្លើយខុសមួយ) ?

a. est une grandeur qui ne varie pas lors d’un exercice physique

b. correspond à la valeur de tension artérielle mesurée chez le médecin

c. s’exprime généralement par deux valeurs : minimale et maximale

d. est la pression que le sang exerce sur les artères (អំពីសម្ពាធឈាមលើ les artères)

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49)

Mixtures of two or more immiscible liquid phases wherein at least one phase exist in the form of tiny particles dispersed in another phase is the definition of?

a. Foam

b. Emulsion

c. Solution

d. Suspension

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50)

Dérivations périphériques bipolaires ou standard ou d’EINTHOVEN (ECG) មានចំនួន៖ (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. 4

b. 6

c. 5

d. 3

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51)

What types of gel are mostly thermo-reversible?

a. heteropolymer gel

b. homopolymer gel

c. chemical gel

d. physical gel

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52)

Quel vaisseau sanguin transporte le sang de toutes les parties du corps vers le cœur ? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Aorte

b. veine pulmonaire

c. veine cave

d. artère pulmonaire

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53)

Parmi les propositions suivantes concernant le rôle du surfactant pulmonaire : (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. il augmente les rythmes respiratoires

b. il diminue la compliance pulmonaire

c. il entraîne la contraction des muscles bronchique

d. il empêche une trop grande rétraction des alvéoles

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54)

Parmi les propositions suivantes concernant de l’intérêt de l’ECG, indiquez celle est fausse (ជ្រើសរើសចម្លើយខុសមួយ) ?

a. Rythmes cardiaques

b. Débit cardiaque

c. Bruits amoraux

d. Fréquences cardiaques

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55)

À la sortie du cœur, le sang est propulsé (រុញ្រ􏰎ន) par le ventricule gauche dans : (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. L’artère aorte

b. La veine cave

c. L’artère pulmonaire

d. La veine pulmonaire

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56)

Quelles phases retrouve-t-on lors d’un potentiel d’action cardiaque ? (ជ្រើសរើសចម្លើយខុសមួយ)

a. L’hyperpolarisation

b. La dépolarisation

c. Polarisation

d. La repolarisation

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57)

Hémoglobine + CO ឈ្មោះថា៖ (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Oxyhémoglobine

b. Méthémoglobine

c. Carbhémoglobine

d. Carboxyhémoglobine

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58)

Explain « monomer » ?

a. are compounds of the same or different organic/inorganic atomic groupings of low molecular weight

b. chemical compounds with very high molecular weight, long chain molecules formed of a large number of basic repetitive units

c. built from the same monomer units as polymers, but their chain is much shorter (MM<10kDa)

d. No explanation is right

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59)

Muscle séparant l’abdomen de la cage thoracique et permettant la respiration : (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Plèvres

b. Muscles abdominaux

c. Muscles intercostaux

d. Diaphragme

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60)

Que rejette-t-on (បញ្ចេញចោល) lors de l’expiration ? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. du dioxyde de carbone

b. de l’oxygène

c. de l’air

d. de l’azote

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61)

Between covalently-joined polymers and secondary-force polymers, which ones are more stable?

a. None are stable

b. secondary-force are more stable

c. Covalently-joined and secondary-force are the same

d. Covalently-joined are more stable

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62)

Dérivations précordiales (ECG) មានចំនួន ៖ (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. 3

b. 6

c. 5

d. 4

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63)

What is “emulsion”?

a. liquid (dispersed medium) + oil (dispersing medium)

b. All are wrong

c. liquid (dispersing/dispersed medium) and oil (dispersing/dispersed medium)

d. liquid (dispersing medium) + oil (dispersed medium)

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64)

Definition of surfactant?

a. agents usually organic that lowers the surface of two liquid,

b. agents usually inorganic that lowers the surface tension of two liquid,

c. agents usually organic that increase the surface tension of two liquid,

d. agents usually organic that lowers the surface tension of two liquid,

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65)

What type of “surfactant” is best for hair products?

a. Non ionic surfactant

b. Cationic surfactant

c. Anionic surfactant

d. Amphoteric or Zwitterrionic surfactant

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66)

Tyndall effect is the scattering of light by particles. This technical use for determine?

a. the mixture is considered a dispersed medium

b. the mixture is considered a dispersed phase

c. the mixture is considered a colloid

d. the mixture is considered a continuous medium

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67)

Quel est le principal élément expiré par les alvéoles ? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Le gaz carbonique

b. Le bicarbonate

c. L’oxyde de carbone

d. L’oxygène

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68)

During polymer preparation, we get the polymers with the variation in size, shape and mass distribution. What is it called?

a. Biodegradation

b. Polymerization

c. Polydispersity

d. Conformation

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69)

What should be the best surfactant for syrup: minerals with vitamins?

a. Zwitterrionic surfactants

b. Anionic surfactants: carboxylate, sulfate and sulfonate ions

c. Cationic surfactants: quartenary ammonium compounds

d. Nonionic surfactants (Eg. PEG)

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70)

What are the two types of “polymer”?

a. Homopolymer and oligomer

b. All are wrong

c. Heteropolymer and oligomer

d. Homopolymer and heteropolymer

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71)

Between crystalline and amorphous polymers, which one is frequently more stable?

a. amorphous not stable

b. crystalline and amorphous are stable

c. crystalline more stable

d. amorphous more stable

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72)

Le dioxygène est principalement transporté par : (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Les hématies

b. Les plaquettes

c. Le plasma

d. Les leucocytes

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73)

What is “flocculation”?

a. Can be sedimentation an creaming

b. A type of destabilized colloid system in which the particles aggregate much together with their intact film

c. All are right

d. type of destabilized colloid system in which the particles fused together with their disrupted film

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74)

5% de l’O2 est transporté dans les globules rouges. Un globule rouge contient environ 280 millions d’hémoglobines. Chaque hémoglobine transporte : (ជ្រើសរើសចម្លើយត្រូវមួយ)?

a. 3 molécules d’O2

b. 2 molécules d’O2

c. 4 molécules d’O2

d. 5 molécules d’O2

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75)

What is “coalescence”?

a. A type of destabilized colloid system in which the particles fused together with their disrupted film

b. Can be sedimentation an flocculation

c. All are right

d. A type of destabilized colloid system in which the particles aggregate much together with their intact film

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76)

Emulsion is one of colloidal system that composed by ?

a. Dispersed phase as gas and dispersed medium as liquid

b. Dispersed phase liquid and dispersed medium as liquid

c. Dispersed phase as liquid and dispersed medium as gas

d. Dispersed phase as solid and dispersed medium as liquid

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77)

What should be the best surfactant for Lotion for skin care?

a. Anionic surfactants: carboxylate, sulfate and sulfonate ions

b. Zwitterrionic/Amphoteric surfactants

c. Nonionic surfactants (Eg. PEG)

d. Cationic surfactants : quartenary ammonium compounds

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78)

What type of polymer structure is susceptible to become “gel”?

a. Linear polymers

b. Flexible polymers

c. Branch polymers

d. All are right

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79)

Un ECG normale présente 5 ondes, nommées P, Q, R, S, et T. A quoi correspond le complexe QRS (QRS តំណាងអ្វី)? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. A la polarisation ventriculaire et précède la systole ventriculaire

b. A la repolarisation ventriculaire et précède la systole ventriculaire

c. A la dépolarisation auriculaire générée pas le nœud sinusal et précède la systole auriculaire

d. A la dépolarisation ventriculaire et précède la systole ventriculaire

80 / 108

80) មុខងារសំខាន់របស់ Hémoglobine des hématies គឺ ៖ (ជ្រើសរើសចម្លើយត្រូវមួយ) (Le rôle principal de l’hémoglobine des hématies est de 🙂 ?

a. donner la couleur aux globules

b. servir à la coagulation du sang

c. transporter l’oxygène et le dioxyde de carbone

d. défendre l’organisme contre les microbes

81 / 108

81)

Unit use for measure the physical quantity in SI, choose the correct answer?

a. Quantity of substance in mole (mole)

b. Length in millimetre (m)

c. Intensity of light in kelvin (K)

d. Light in metre (m)

82 / 108

82)

Surfactant pulmonaire គឺជា une substance lipidoprotéique កើតចេញពី ៖ (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Pneumocytes de type I

b. Globules rouges

c. Macrophages

d. Pneumocytes de type II

83 / 108

83)

What are the “two irreversible states” during phase separation of colloid?

a. Coalescence an flocculation

b. Creaming and coalescence

c. Flocculation and sedimentation

d. Sedimentation and Creaming

84 / 108

84)

Differentiate between “plastics” and “latex”.?

a. Both explanation are right

b. Latex are mostly from natural origin from the rubber tree Hevea brasiliensis

c. Both explanation are wrong

d. Plastics are composed of a network of molecular monomers synthetically bound together to form macromolecules

85 / 108

85)

Toutes les propositions concernant les plèvres sont justes sauf une, laquelle ? (ជ្រើសរើសចម្លើយខុសមួយ) ?

a. Elle contient un espace virtuel entre les 2 feuillets

b. Elle est composée de deux feuillets : viscéral et pariétal

c. Elle a toujours un épanchement liquidien

d. Le liquide à l’intérieur de l’espace pleural sert de lubrifiant

86 / 108

86)

What is “sedimentation/settling”?

a. A type of destabilized colloid system in which the particles aggregate together toward the bottom

b. All are right

c. A type of destabilized colloid system in which the particles aggregate together toward the top

d. Can be Coalescence an flocculation

87 / 108

87)

Pression diastolique ou pression minimale (Pdiastolique ≠ 0) មិនស្មើសូន្យព្រោះ: (ជ្រើសរើសចម្លើយខុសមួយ)?

a. Le calibre des vaisseaux reste constant

b. La circulation sanguine est fermée

c. La quantité du sang reste dans les vaisseaux

d. la résistance périphérique

88 / 108

88)

Hémoglobine + O2 ឈ្មោះថា៖ (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Oxyhémoglobine

b. Carboxyhémoglobine

c. Carbhémoglobine

d. Méthémoglobine

89 / 108

89)

What is “creaming”?

a. All are right

b. A type of destabilized colloid system in which the particles aggregate together toward the bottom

c. A type of destabilized colloid system in which the particles aggregate together toward the top

d. Can be Coalescence an flocculation

90 / 108

90)

Mécanisme passif de la respiration : (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Inspiration forcé

b. Expiration

c. Ventilation

d. Inspiration

91 / 108

91) តើ Viscosité du sang កើនឡើងនៅកន្លែងណា? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Artères

b. Veines

c. Cœur

d. Capillaires

92 / 108

92)

What type of “surfactant” possesses a very good bactericidal property?

a. Cationic surfactant

b. Cationic and Anionic surfactant

c. Non ionic surfactant

d. Amphoteric or Zwitterrionic surfactant

93 / 108

93)

Explain « polymer » ?

a. The explanation are wrong

b. chemical compounds with very high molecular weight, long chain molecules formed of a large number of basic repetitive units

c. are compounds of the same or different organic/inorganic atomic groupings of low molecular weight

d. built from the same monomer units as polymers, but their chain is much shorter (MM<10kDa)

94 / 108

94)

Mécanisme actif de la respiration : (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Ventilation

b. Expiration

c. Echange gazeux

d. Inspiration

95 / 108

95)

Suspension is one of the colloidal system that composed by ?

a. The internal phase consisting of insoluble liquid particles and the external phase is generally aqueous

b. The internal phase consisting of insoluble solid particles and the external phase is generally gas

c. The internal phase consisting of soluble solid particles and the external phase is generally aqueous

d. The internal phase consisting of insoluble solid particles and the external phase is generally aqueous

96 / 108

96)

The phrase below are justified about units use in SI and Non-SI, one is wrong?

a. MKS for Metre–kilogram–second

b. cfu/ml to measure about Colony forming unit of substance in millilitre

c. Length in metre (m)

d. the symbol of kat is refer to catalytic activity

97 / 108

97)

Dérivations périphérique (ECG) គេត្រូវដាក់ Electrodes នៅ ៖ (ជ្រើសរើសចម្លើយខុសមួយ) ?

a. poignet gauche

b. cheville droite

c. poignet droit

d. cheville gauche

98 / 108

98)

Parmi les propositions suivantes concernant le rôle des fosses nasales, indiquez celle est fausse ? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Arrêter les microparticules

b. Réchauffer

c. Phonation

d. Conduire l’aire

99 / 108

99)

L’artère pulmonaire part (ចេញពី) : (ជ្រើសរើសចម្លើយត្រូវមួយ)?

a. du ventricule gauche

b. du poumon droit

c. du ventricule droit

d. de l’oreillette droite

100 / 108

100)

How many types of polymer gel are there?

a. two type: chemical and physical

b. two type: chemical and heteropolymer

c. two type: homopolymer and chemical

d. two type: chemical and heteropolymer

101 / 108

101)

Compare “colloid” with “suspension”?

a. Colloid and suspension are always distinguished by their effect with light

b. Colloid and suspension are always distinguished using filtration

c. Colloid and suspension are always distinguished by particle size

d. All are right

102 / 108

102)

Two types of surface-active agent based on charged groups present in their head in solution?

a. Noncationic surfactants and Ionic surfactants

b. Ionic surfactants: anionic (-), cationic (+), zwitterrion/amphoteric (+/-)

c. Nonionic surfactants and Ionic surfactants: (anionic, cationic, zwitterrion/amphoteric)

d. Nonaionic surfactants and Ionic surfactants

103 / 108

103)

Toutes ces propositions concernant le CO sont justes sauf une, laquelle ? (ជ្រើសរើសចម្លើយខុសមួយ) ?

a. A une pression capillaire pulmonaire négligeable

b. Réduit le % HbO2 ( បន្ថយភាគរយរបស់ HbO2)

c. Se fixe sur l’extrémité NH2 terminale de l’Hb

d. Se fixe sur l’hème de l’Hb

104 / 108

104) កត្តារូបវិទ្យាដែលបង្កឲ្យមាន ventilation pulmonaire: (ជ្រើសរើសចម្លើយខុសមួយ) ?

a. បំរែបំរួលវ៉ូលូមខាងក្នុង alvéoles

b. ការប្រណាំងប្រជែងរវាងសម្ពាធមេកានិច និង ភាពយឺតរបស់សួត

c. ភាពខុសគ្នាសម្ពាធរវាងខាងក្នុងនិង ខាងក្រៅសួត

d. វត្តមានរបស់ surfactant

105 / 108

105)

Define « colloids »?

a. Hetergenoeus state in which particle size (dispersed medium) is smaller than 10-5 cm

b. Homogenoeus state in which particle size (dispersed medium) is smaller than 10-5 cm

c. Homogenoeus state in which particle size (dispersed medium) is bigger than 10-5 cm

d. Hetergenoeus state in which particle size (dispersed medium) is bigger than 10-5 cm

106 / 108

106)

Quel vaisseau sanguin transporte le sang des poumons vers le cœur ? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. artère pulmonaire

b. veine pulmonaire

c. veine cave

d. aorte

107 / 108

107)

Que se passe-t-il à la fin de la diastole générale ? (ជ្រើសរើសចម្លើយត្រូវមួយ) ?

a. Les ventricules reçoivent le sang provenant des oreillettes

b. Les oreillettes et les ventricules sont relâchés

c. La valvule pulmonaire et aortique est ouverte

d. Les valvules auriculo-ventriculaires sont ouvertes

108 / 108

108)

What type of “surfactant’ is excellent in manufacturing dermatological products?

a. Amphoteric or Zwitterrionic surfactant

b. Cationic surfactant

c. Non ionic surfactant

d. Anionic surfactant

Your score is

The average score is 82%

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