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

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
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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

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

The antibodies raised against a pure protein will show only one sharp spike on this technique: (A) Solubility curve (B) Solvent precipitation (C) Molecular weight determination (D) Immuno electrophoresis

Description : The antibodies raised against a pure protein will show only one sharp spike on this technique: (A) Solubility curve (B) Solvent precipitation (C) Molecular weight determination (D) Immuno electrophoresis

Last Answer : Answer : D

Lipoprotiens may be identified more accurately by means of (A) Electrophoresis (B) Ultra centrifugation (C) Centrifugation (D) Immunoelectrophoresis

Description : Lipoprotiens may be identified more accurately by means of (A) Electrophoresis (B) Ultra centrifugation (C) Centrifugation (D) Immunoelectrophoresis

Last Answer : Answer : D

More than one break in the line or in saturation curve indicates the following quality of protein. (A) Non homogenity (B) Purity (C) Homogeneity (D) None of these

Description : More than one break in the line or in saturation curve indicates the following quality of protein. (A) Non homogenity (B) Purity (C) Homogeneity (D) None of these

Last Answer : Answer : A

Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by (A) Chemical coagulation (B) Floatation & skimming (C) Centrifugation (D) Ultra filtration

Description : Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by (A) Chemical coagulation (B) Floatation & skimming (C) Centrifugation (D) Ultra filtration

Last Answer : (A) Chemical coagulation

Plasma protein can be separated by (A) Salting out with (NH4)2SO4 (B) Ultracentrifugation (C) Immuno electrophoresis (D) All of these

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

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

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)

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 aliphatic character are more soluble in aliphatic solvents, while those polymers having more aromatic character are more soluble in aromatic solvents (C) Swelling tendency or solubility of polymers in a particular solvent decreases with increase in molecular weight of the solvent (D) High molecular weight polymers on dissolving gives solution of very low viscosity

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Last Answer : (D) High molecular weight polymers on dissolving gives solution of very low viscosity

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

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

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

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

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

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

What are the methods used to determine the molecular weight of proteins?

Description : What are the methods used to determine the molecular weight of proteins?

Last Answer : (1) Ultracentrifugation, (2) Gel filtration and (c) PAGE (poly acrylamide gel electrophoresis).

Sorting classifiers employing differential settling methods forseparation of particles make use of the differences in their(A) Particle sizes(B) Densities(C) Terminal velocities(D) None of these

Description : Sorting classifiers employing differential settling methods forseparation of particles make use of the differences in their (A) Particle sizes (B) Densities (C) Terminal velocities (D) None of these

Last Answer : (C) Terminal velocities

Which one of the following best describes project managc. Utilizing team members who can work on a project full time. d. Application of processes and methods throughout the project life cycle.ement? a. Using APM’s Body of Knowledge 6th edition as a guide to all projects. b. Employing a project manager who has undertaken similar projects.

Description : Which one of the following best describes project management? a. Using APM's Body of Knowledge 6th edition as a guide to all projects. b. Employing a project manager who has undertaken similar ... on a project full time. d. Application of processes and methods throughout the project life cycle.

Last Answer : d. Application of processes and methods throughout the project life cycle.

Which one of the following best describes project management? a. Using APM’s Body of Knowledge 6th edition as a guide to all projects. b. Employing a project manager who has ud. Application of processes and methods throughout the project life cycle.ndertaken similar projects. c. Utilising team members who can work on a project full time.

Description : Which one of the following best describes project management?  a. Using APM's Body of Knowledge 6th edition as a guide to all projects.  b. Employing a project manager who has undertaken ... on a project full time. d. Application of processes and methods throughout the project life cycle.

Last Answer : d. Application of processes and methods throughout the project life cycle.

Human immuno deficiency virus (HIV) has a protein coat and a genetic material which is

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

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

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.

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

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)

Why does solubility decreases with increasing molecular mass in carboxylic acid ?

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. 

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

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

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 solubility curve in case of a single component stripper (C) The operating pressure in solvent extraction system should be below vapor pressures of all components (D) The solubility of a particular gas in ideal solution in any solvent is always the same

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

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 the operating line (C) In case of an absorber, the operating line is always above the equilibrium curve (D) In the absorption of low solubility gases, the liquid film is the controlling resistance

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

What is the advantage of radio-immuno assay?

Description : What is the advantage of radio-immuno assay?

Last Answer : Very small quantities of substances could be accurately measured.

What is immuno-electrophoresis?

Description : What is immuno-electrophoresis?

Last Answer : Here electrophoretic separation is followed by an antigen-antibody reaction.

Mention the methods of obtaining ultra pure metal.

Description : Mention the methods of obtaining ultra pure metal.

Last Answer : a) Fractional crystallization or zone refining. b) Vacuum melting c) Distillation d) Chemical vapour deposition e) Liquation process

seed drill can be tested by a) sand bed method b) sticky belt methods c) both d) none of these Ans. c

Description : seed drill can be tested by a) sand bed method b) sticky belt methods c) both d) none of these Ans. c

Last Answer : ans c

Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene. (A) Smoking tendency of hydrocarbons increases in the order: paraffins → isoparaffins → naphthenes → aromatics (B) Smoking tendency of paraffins increases with decrease in its molecular weight

Description : Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene. (A) Smoking tendency of hydrocarbons increases in the order: paraffins → isoparaffins → naphthenes → aromatics (B) Smoking tendency of paraffins increases with decrease in its molecular weight

Last Answer : (B) Smoking tendency of paraffins increases with decrease in its molecular weight

If a drug has a constant bioavailability and first order elimination, its maintenance dose rate will be directly proportional to its: A. Volume of distribution B. Plasma protein binding C. Lipid solubility D. Total body clearance

Description : If a drug has a constant bioavailability and first order elimination, its maintenance dose rate will be directly proportional to its: A. Volume of distribution B. Plasma protein binding C. Lipid solubility D. Total body clearance

Last Answer : D. Total body clearance

Glomerular filtration of a drug is affected by its: A. Lipid solubility B. Plasma protein binding C. Degree of ionization D. Rate of tubular secretion

Description : Glomerular filtration of a drug is affected by its: A. Lipid solubility B. Plasma protein binding C. Degree of ionization D. Rate of tubular secretion

Last Answer : B. Plasma protein binding

The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Description : The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Last Answer : C. High plasma protein binding

The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Description : The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Last Answer : C. High plasma protein binding

If a drug has a constant bioavailability and first order elimination, its maintenance dose rate will be directly proportional to its: A. Volume of distribution B. Plasma protein binding C. Lipid solubility D. Total body clearance

Description : If a drug has a constant bioavailability and first order elimination, its maintenance dose rate will be directly proportional to its: A. Volume of distribution B. Plasma protein binding C. Lipid solubility D. Total body clearance

Last Answer : D. Total body clearanc

Glomerular filtration of a drug is affected by its: A. Lipid solubility B. Plasma protein binding C. Degree of ionization D. Rate of tubular secretion

Description : Glomerular filtration of a drug is affected by its: A. Lipid solubility B. Plasma protein binding C. Degree of ionization D. Rate of tubular secretion

Last Answer : B. Plasma protein binding

The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Description : The following attribute of a drug tends to reduce its volume of distribution: A. High lipid solubility B. Low ionisation at physiological pH values C. High plasma protein binding D. High tissue binding

Last Answer : C. High plasma protein binding

SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at (A) 1: 3 (B) 3 : 1 (C) 1 : 2 (D) 2 : 1

Description : SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at (A) 1: 3 (B) 3 : 1 (C) 1 : 2 (D) 2 : 1

Last Answer : (A) 1: 3

An ASCII is a character-encoding scheme that is employed by personal computers in order to represent various characters, numbers and control keys that the computer user selects on the keyboard. ASCII is an acronym for (A) American Standard Code for Information Interchange (B) American Standard Code for Intelligent Information (C) American Standard Code for Information Integrity (D) American Standard Code for Isolated Information

Description : An ASCII is a character-encoding scheme that is employed by personal computers in order to represent various characters, numbers and control keys that the computer user selects on the ... C) American Standard Code for Information Integrity (D) American Standard Code for Isolated Information

Last Answer : (A) American Standard Code for Information Interchange

State the condition for using the method of centrifugation to separate contents of a mixture.State the principle involved in this process. -Chemistry

Description : State the condition for using the method of centrifugation to separate contents of a mixture.State the principle involved in this process. -Chemistry

Last Answer : The basic principle of centrifugation is that the denser particles remain at the bottom and the lighter particles will remain at the top. it can be used with like colloids to separate suspended particles are separated by churning the liquid at high speed

The working principle of a washing machine is? A. Diffusion B. Reverse osmosis C. Dialysis D. Centrifugation

Description : The working principle of a washing machine is? A. Diffusion B. Reverse osmosis C. Dialysis D. Centrifugation

Last Answer : ANSWER: D

The washing machine works on the principle of – (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Description : The washing machine works on the principle of – (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Last Answer : (4) Centrifugation Explanation: Washing machines work on the principle of centrifugation. They are based on medium sized centrifuges that put an object in rotation around a fixed axis, applying force perpendicular to the axis.

Radioactive elements can be traced out in living cell through a technique called – (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Description : Radioactive elements can be traced out in living cell through a technique called – (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Last Answer : (3) Auto radiography Explanation: Radioactive elements can be traced out in living cell through a technique called Autoradiography.

The working principle of a washing machine is : (1) centrifugation (2) dialysis (3) reverse osmosis (4) diffusion

Description : The working principle of a washing machine is : (1) centrifugation (2) dialysis (3) reverse osmosis (4) diffusion

Last Answer : (1) centrifugation Explanation: The working of the washing machine is quite high tech, and includes a set sequence of washing, rinsing, and spinning (plus a pre-wash if desired).

The washing machine works on the principle of - (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Description : The washing machine works on the principle of - (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Last Answer : (4) Centrifugation Explanation: Washing machines work on the principle of centrifugation. They are based on medium sized centrifuges that put an object in rotation around a fixed axis, applying force perpendicular to the axis.

The working principle of a 'Washing machine' is : (1) centrifugation (2) dialysis (3) reverse osmosis (4) diffusion

Description : The working principle of a 'Washing machine' is : (1) centrifugation (2) dialysis (3) reverse osmosis (4) diffusion

Last Answer : (1) centrifugation Explanation: The principle behind the spinning dry of the clothes in a washing machine is centrifugal force. The fast spinning around of the clothes in the drum creates a large ... wet clothes are flung outwards to the drum edge and the water escapes through the drum holes.

If a force greater than that of gravity is used to separate solids & fluidsof different densities, the process is termed as the(A) Sedimentation(B) Flocculation(C) Dispersion(D) Centrifugation

Description : If a force greater than that of gravity is used to separate solids & fluidsof different densities, the process is termed as the (A) Sedimentation (B) Flocculation (C) Dispersion (D) Centrifugation

Last Answer : (D) Centrifugation

DNA fragments generated by the restriction endo- nucleases in a chemical reaction can be separated by (a) electrophoresis (b) restriction mapping (c) centrifugation (d) polymerase chain reaction.

Description : DNA fragments generated by the restriction endo- nucleases in a chemical reaction can be separated by (a) electrophoresis (b) restriction mapping (c) centrifugation (d) polymerase chain reaction.

Last Answer : (a) electrophoresis

Organelles can be separated from cell homogenate through (a) chromatography (b) X-rays diffraction (c) differential centrifugation (d) auto-radiography

Description : Organelles can be separated from cell homogenate through (a) chromatography (b) X-rays diffraction (c) differential centrifugation (d) auto-radiography

Last Answer : (c) differential centrifugation

In which of the following techniques the sample is kept below triple point? (A) Lyophilization (B) Spray drying (C) Spray congealing (D) Centrifugation

Description : In which of the following techniques the sample is kept below triple point? (A) Lyophilization (B) Spray drying (C) Spray congealing (D) Centrifugation

Last Answer : (A) Lyophilization

The washing machine works on the principle of (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Description : The washing machine works on the principle of (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

Last Answer : Centrifugation

Radioactive elements can be traced out in living cell through a technique called (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Description : Radioactive elements can be traced out in living cell through a technique called (1) Centrifugation (2) Chromatography (3) Auto radiography (4) All the above

Last Answer : Auto radiography