Description : A sharp moving boundary is obtained between the pure solvent and solute containing layer in (A) Chromatography (B) Immuno Reactivity (C) Ultra Centrifugation (D) Solubility curve
Last Answer : Answer :C
Description : The purity of an isolated protein can be tested by employing various methods. (A) Solubility curve (B) Molecular weight (C) Ultra Centrifugation (D) Immuno Ractivity (E) All of these
Last Answer : Answer : C
Description : Plasma protein can be separated by (A) Salting out with (NH4)2SO4 (B) Ultracentrifugation (C) Immuno electrophoresis (D) All of these
Last Answer : Answer : D
Description : Pick out the wrong statement regarding the solubility characteristics of high polymers. (A) Greater the degree of cross-linking in the polymer, lesser is its solubility (B) Polymers having more ... of the solvent (D) High molecular weight polymers on dissolving gives solution of very low viscosity
Last Answer : (D) High molecular weight polymers on dissolving gives solution of very low viscosity
Description : What is immuno-electrophoresis?
Last Answer : Here electrophoretic separation is followed by an antigen-antibody reaction.
Description : The technique for purification of proteins that can be made specific for a given protein is (A) Gel filtration chromotography (B) Ion exchange chromatography (C) Electrophoresis (D) Affinity chromatography
Description : Pick out the wrong statement. (A) The operating line always lies above the equilibrium solubility curve in case of a single component absorber (B) The operating line always lies below the equilibrium ... (D) The solubility of a particular gas in ideal solution in any solvent is always the same
Last Answer : (C) The operating pressure in solvent extraction system should be below vapor pressures of all components
Description : What is immuno electrophoresis ?
Last Answer : The resolving power of immuno diffusion was greatly enhanced bye immuno electrophoresis. This involves the electrophoretic separation of antigen into its constituent proteins followed by immuno diffusion. ... The formation of precipitin bands can be observed for the individual antigen components.
Description : How is immuno electrophoresis more advance than paper electrophoresis ?
Last Answer : In paper electrophoresis, serum proteins can be separated into 5 different bands but the same protein using immuno electrophoresis can be separated into 30 different proteins.
Description : Give some applications of immuno electrophoresis ?
Last Answer : This technique is useful for testing normal and abnormal proteins in serum and urine. It is useful to determine whether a patient produces abnormally a low amount of one or more proteins. It is also used if a patient over produces some serum proteins.
Description : What is counter current immuno electrophoresis ?
Last Answer : This technique involves the simultaneous electrophoresis of antigen and antibody in the gel in the opposite direction resulting in precipitation of point where there is optimum concentration of antigen- ... 30 minutes and is 10 times more sensitive than the standard double diffusion technique.
Description : Isoelectric point of amino acids is used for (A) Crystallisation (B) Precipitation (C) Solubility (D) Reactivity
Last Answer : Answer : B
Description : If two persons with AB' blood group marry and have sufficiently large number of children, these children could be classified as A' blood group: AB' blood group : B' blood group in 1 ... in an example of (a) partial dominance (b) complete dominance (c) codominance (d) incomplete dominance.
Last Answer : (c) codominance
Description : The movement of charged particles towards one of the electrodes under the influence of electrical current is (A) Gel filtration (B) Molecular sieving (C) Gas liquid chromatography (D) Electrophoresis
Description : Rcmoval of carbon particles from air involves the principle of – (1) Precipitation (2) FiIteration (3) Electrophoresis (4) Sedimentation
Last Answer : (3) Electrophoresis Explanation: Carbon particles in air are colloidal in nature and carry negative charge. The removal of carbon parities from air involves the principle of electrophoresis. Carbon particles get ... losing their charge and, thus, the air which finally comes out is free from them.
Description : Removal of carbon particles from air involves the principle of - (1) Precipitation (2) Filteration (3) Electrophoresis (4) Sedimentation
Last Answer : (3) Electrophoresis Explanation: Electrophoresis is the process of separating certain large molecules so they can be examined more easily.
Description : Irreversible precipitation of proteins caused by heating is called : (a) Polymerisation (b) Denaturation (c) Electrophoresis (d) Inversion
Last Answer : Denaturation
Description : Removal of carbon particles from air involves the principle of (1) Precipitation (2) Filteration (3) Electrophoresis (4) Sedimentation
Last Answer : Electrophoresis
Description : The catalytic power of enzymes is due to (a) the presence of amino acids in their structures (b) their high molecular weight (c) their ability to lower the activation energy of the reaction (d) their limited solubility in water and other solvents
Last Answer : Ans:(c)
Description : The most important factor governing absorption of a drug from intact skin is: A. Molecular weight of the drug B. Site of application C. Lipid solubility of the drug D. Nature of the base used in the formulation
Last Answer : C. Lipid solubility of the drug
Description : The serological reaction where antigens and antibodies form an extensive Lattice of large particles is called a. Fixation. b. Precipitation. c. Neutralization. d. Agglutination.
Last Answer : c. Neutralization.
Description : For determination of average annual precipitation in a catchment basin, the best method is (A) Arithmetical method (B) Thiessen's mean method (C) Isohyetal method (D) None of these
Last Answer : Answer: Option C
Description : Rain simulators are used for the determination of (A) Evaporation (B) Precipitation (C) Run off (D) Infiltration capacity
Last Answer : Answer: Option D
Description : Which of the following has highest solubility in ionic solvent? (a) Silver iodide (b) Silver bromide (c) Silver chloride (d) Silver fluoride
Last Answer : Ans:(d)
Description : Pick out the undesirable property for a solvent meant for dewaxing of lube oil. (A) Complete miscibility with oil (B) High solubility of wax in the solvent (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) and (B)
Description : Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their (A) Viscosity (B) Density (C) Solubility (D) Relative volatility
Last Answer : (C) Solubility
Description : Which of the following is an undesirable characteristic for the solvent used in gas absorption? (A) Low vapor pressure (B) Low viscosity (C) High gas solubility (D) None of these
Last Answer : (D) None of these
Description : Pick out the wrong statement. (A) In solvent extraction, the distribution co-efficient should be as large as possible for solvent economy (B) With increase in pressure, the solubility of ... in distillation column (D) The capacity of a distillation column is maximum at total reflux
Last Answer : (D) The capacity of a distillation column is maximum at total reflux
Description : Which action best accounts for the solubility of aldehydes and ketones in water? (a) Polar interactions between solute molecules. (b) H-bonding between solute molecules. (c) Van der waals forces (d) H-bonding between solute and solvent molecules
Last Answer : H-bonding between solute and solvent molecules
Description : Define the following : Solute , Solvent , Solution , Aqueous Solution & Solubility.
Last Answer : Ans : Solute : The component of the solution present in smaller amount is called solute. It is also defined as the substance that gets dissolved in the solvent. Example : Glucose is solute in glucose solution. ... grams / 100 grams. Solubility of sugar in water at 100 degree C is 487 grams/100 ml.
Description : Given below are four statements pertaining to separation of DNA fragments using gel electrophoresis. Identify the incorrect statements. (i) DNA is negatively charged molecule and so it is loaded on gel towards the anode terminal. (ii) DNA ... (iii) (c) (ii), (iii) and (iv) (d) (i), (ii) and (iv)
Last Answer : (d) (i), (ii) and (iv)
Description : Pick out the correct statement. (A) Ponchan-Savarit method is more accurate than McCabe-Thiele method to determine the number of theoretical stages required for the separation of ... Flash distillation is suitable for separating components which have very close boiling temperature
Last Answer : (A) Ponchan-Savarit method is more accurate than McCabe-Thiele method to determine the number of theoretical stages required for the separation of nonideal binary system by distillation
Description : An analysis of chromosomal DNA using the Southern hybridization technique does not use (a) electrophoresis (b) blotting (c) autoradiography (d) PCR.
Last Answer : (d) PCR.
Description : Which of the following statements about continuous cardiac output monitoring are true? A. Continuous cardiac output monitoring may unmask events not detected by intermittent cardiac output measurements. ... stroke volume by detecting changes in resistance to a small, applied alternating current.
Last Answer : Answer: AD DISCUSSION: Various techniques are available to measure cardiac output continuously. The advantages of continuous cardiac output monitoring, as compared with intermittent methods, are (1) ... function of the stroke volume, which then can be used to calculate the cardiac output
Description : Human immuno deficiency virus (HIV) has a protein coat and a genetic material which is
Last Answer : Human immuno deficiency virus (HIV) has a protein coat and a genetic material which is A. Single ... C. Double stranded RNA D. Double stranded DNA
Description : Human immuno deficiency virus (HIV) has a protein coat and a genetic material which is (a) double stranded RNA (b) double stranded DNA (c) single stranded DNA (d) single stranded RNA
Last Answer : (d) single stranded RNA.
Description : Pick the wrong statement: hydrogen bonding results in (a) Increased solubility in water (b) Higher Van der Waal's forces (c) Molecular association (d) Abnormal boiling point
Last Answer : Ans:(b)
Description : Why does solubility decreases with increasing molecular mass in carboxylic acid ?
Last Answer : Ans. Because of increase in alkyl chain length which is hydrophobic in nature.
Description : An octahedral complex with molecular composition `M.5NH_(3).Cl.SO_(4)` has two isomers. A and B. The solution A gives a white precipitation with `AgNO
Last Answer : An octahedral complex with molecular composition `M.5NH_(3).Cl.SO_(4)` has two isomers ... isomerism C. coordination isomers D. Geometrical isomerism
Description : A plait point is the point on the solubility curve, where the tie line reduces to a point. What is the number of plait point for a ternary system containing two pairs of partially miscible liquids? (A) 0 (B) 1 (C) 2 (D) 3
Last Answer : (A) 0
Description : When acetone is added in a two layer mixture of methyl isobutyl ketone and water at 30°C, the acetone distributes between the two layers and the composition of the layer follows two solubility curves. For this system ... at the concentration of the plait point (D) All (A), (B) and (C
Last Answer : (D) All (A), (B) and (C
Description : Pick out the wrong statement: (A) Absorption factor is constant, when the equilibrium and operating lines are straight (B) In case of a stripper, the equilibrium curve is always below ... (D) In the absorption of low solubility gases, the liquid film is the controlling resistance
Last Answer : (B) In case of a stripper, the equilibrium curve is always below the operating line
Description : Protein electrophoresis - urine?
Last Answer : DefinitionA urine protein electrophoresis is a test that estimates how much of certain proteins you have in your urine.See also:Immunoelectrophoresis - urineImmunofixation - urineAlternative NamesUrine protein ... the health care provider or assistant.In infants, thoroughly wash the area around the
Description : Protein electrophoresis - serum?
Last Answer : DefinitionThis test measures the types of protein in the fluid (serum) part of a blood sample.See also:Immunoelectrophoresis - serumImmunofixation - serumSerum globulin electrophoresisAlternative NamesLipoprotein ... except albumin, are not usually measured. However, protein fractions or groups A
Description : Why camphor is used in molecular mass determination ?
Last Answer : Ans. Because it has very high cryoscopic constant. It has large depression in m. p. when an organic solute is dissolved in it.
Description : Application of HPLC includes? A. Detection of functional groups in organic compounds B. Determination of molecular mass C. Separation of volatile compounds D. Impurity profiling
Last Answer : D. Impurity profiling
Description : How the molecular biological technique is used to study the nervous system?
Last Answer : As with other fields of biology, recent advances in molecular biological technique allow manipulations of the nervous system at the molecular level in precise & specific ways. Also genetics has long ... of genes & mutagenesis) have been developed that allow targeted disruption of a particular gene.
Description : Pick out the wrong statement. (A) Critical moisture content is not a property of the material itself (B) A sharp increase in pressure drop gives an indication of the flooding in a ... unity (D) Dehydration of ethyl alcohol is most economically done by molecular distillation at very high vacuum
Last Answer : (D) Dehydration of ethyl alcohol is most economically done by molecular distillation at very high vacuum