The isoelectric point of a protein is
(a) the pH at which the protein molecule has no charges on its surface.
(b) the pH at which a protein in solution has an equal number of positive and
negative charges.
(c) the electric charge under isothermal conditions.
(b) None of these

1 Answer

Answer :

the pH at which a protein in solution has an equal number of positive and
negative charges

Related questions

Description : Isoelectric pH of an amino acid is that pH at which it has a (A) Positive charge (B) Negative charge (C) No charge (D) None of these

Last Answer : Answer : C

Description : Isoelectric pH of an amino acid is that pH at which it has a (A) Positive charge (B) Negative charge (C) No net charge (D) All of these

Last Answer : Answer : C

Description : Isoelectric pH of an amino acid is that pH at which it has a (A) Positive charge (B) Negative charge (C) Nil net charge (D) None of these

Last Answer : Answer : C

Description : The pH at which the amino acid shows no tendency to migrate when placed in an electric field is known as its : (a) Isoelectric point (b) Dipole moment (c) Iodine number (d) Wavelength

Last Answer : Isoelectric point

Description : The true statement about solutions of amino acids at physiological pH is (A) All amino acids contain both positive and negative charges (B) All amino acids contain positively charged side chains ... amino acids contain only positive charge (D) All amino acids contain negatively charged side chains

Last Answer : Answer : A

Description : The true statement about solutions of amino acids at physiological pH is (A) All amino acids contain both positive and negative charges (B) All amino acids contain positively charged side chains ... amino acids contain only positive Charge (D) All amino acids contain negatively charged side chains

Last Answer : (A) All amino acids contain both positive and negative charges

Description : At a pH below the isoelectric point, an amino acid exists as (A) Cation (B) Anion (C) Zwitterion (D) Undissociated molecule

Last Answer : Answer : A

Description : A Zwitter ion is one which has in aqueous solution: (A) One positive charge and one negative charge (B) Two positive charges and one negative charge (C) Two negative charges and one positive charge (D) No electrical charges at all

Last Answer : Answer : A

Description : When there is an equal amount of positive and negative charges on an object what is the net charge of the object?

Last Answer : Feel Free to Answer

Description : This technique takes the advantage of the fact that each protein has different pH at which it is electrically neutral i.e., its isoelectric pH: (A) Isoelectric focussing (B) Immunoel Ectro Phoresis (C) Chromatography (D) HPLC

Last Answer : Answer : A

Description : Isoelectric pH is that pH at which protein is electrically: (A) Neutral (B) Anionic (C) Cationic (D) None of these

Last Answer : Answer : A

Description : In the genetic disorder of cystinuria, the patient excretes large quantities of cystine in their urine and its low solubility causes crystalline cystine to precipitate as stones in kidneys. The remedy ... C) NaHCO3 prevents stone formation by hydrolysis of cystine to cysteine (D) None of these

Last Answer : Answer : C

Description : A hexa peptide with 5 aspartic acid would have a net charge at pH 7: (A) Neutral (B) Positive (C) Negative (D) Not predictable

Last Answer : Answer : C

Description : Velocity maximum for an enzyme at half the substrate concentration gives (A) The molecular weight of the enzyme (B) Km value (C) Isoelectric pH (D) Pk value

Last Answer : Answer : B

Description : The pH at which an enzyme has maximum activity is known as (A) Isoelectric pH (B) Optimum pH (C) Low pH (D) High pH

Last Answer : Answer : B

Description : At isoelectric pH, an amino acid exists as (A) Anion (B) Cation (C) Zwitterion (D) None of these

Last Answer : Answer : C

Description : Since the pK values for aspartic acid are 2.0, 3.9 and 10.0, it follows that the isoelectric (pH) is (A) 3.0 (B) 3.9 (C) 5.9 (D) 6.0

Last Answer : Answer : A

Description : pH (isoelectric pH) of alanine is (A) 6.02 (B) 6.6 (C) 6.8 (D) 7.2

Last Answer : Answer : A

Description : Since the pK values for aspartic acid are 2.0, 3.9 and 10.0, it follows that the isoelectric (pH) is (A) 3.0 (B) 3.9 (C) 5.9 (D) 6.0

Last Answer : (A) 3.0

Description : pH (isoelectric pH) of alanine is (A) 6.02 (B) 6.6 (C) 6.8 (D) 7.2

Last Answer : (A) 6.02

Description : For stable molecule the Value of bond order must be.... a) Negative b) Positive c) 0 d) There is no relationship between stability and bond order

Last Answer : b) Positive

Description : During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge? (a) First positive, then negative and continue ... and again back to positive (d) First negative, then positive and again back to negative.

Last Answer : (d) First negative, then positive and again back to negative.

Description : The Millikan experiment showed that electric charge was: w) negative x) quantized y) positive z) unmeasurable

Last Answer : ANSWER: X -- QUANTIZED

Description : What do you call energy from separation of positive and negative charges?

Last Answer : Need answer

Description : What is a positive or negative charges particle?

Last Answer : sex is postive charge in the atom

Description : What do you call the particle with more positive charges than negative charges?

Last Answer : This would be called a CATION.

Description : What do you call the particle with more positive charges than negative charges?

Last Answer : This would be called a CATION.

Description : What is a positive or negative charges particle?

Last Answer : sex is postive charge in the atom

Description : The conventional current is due to the flow of a. atoms and molecules b. positive charges c. negative charges d. both b and c

Last Answer : b. positive charges

Description : In liquids and gases the current is due to the motion a. negative charges b. positive charges c. both negative and positive charges d. neutral particles

Last Answer : c. both negative and positive charges

Description : Who named the two kinds of electrical charges "positive" and "negative"?

Last Answer : ANSWER: BENJAMIN FRANKLIN

Description : What is the name given to a polar molecule or negative ion that is clustered about a central positive ion?

Last Answer : ANSWER: LIGAND

Description : What is polytropic process ? Under what conditions it approaches isobaric, isothermal, and isometric process ? In which reversible process no work is done ?

Last Answer : A polytropic process is one that follows the equation pun = constant (index n may have values from – oc to + oo. This process approaches isobaric when n = 0, isothermal when n = 1, and isometric when n = . No work is done in isometric process.

Description : At a point halfway between two identical point charges, the electric field is equal to: w) zero x) half its maximum value y) its maximum value z) pointing away from the two charges

Last Answer : ANSWER: W -- ZERO 

Description : If the plates of capacitor are oppositely charged then the total charge is equal to A. negative B. positive C. zero D. infinite

Last Answer : zero

Description : The electric field exist around: (a) Charges (b) On the left side (c) At the –ve charge (d) At the +ve charge

Last Answer : (a) Charges

Description : The space around the charge within which other charges are influenced by it is called: (a) Electric field (b) Magnetic field (c) Electric flux (d) Electric intensity

Last Answer : a) Electric field

Description : pH is defined as the negative logarithm of the hydrogen ion concentration. Comparing a pH 5 and a pH 8 solution, which of the following is true? w) There are 1,000 times more hydrogen ions in ... . z) Cannot tell the difference between these two solutions by pH, since the numbers are so close.

Last Answer : ANSWER: X -- THERE ARE 1,000 TIMES MORE HYDROGEN IONS IN THE PH 5 SOLUTION

Description : Can the electric field between two positive charges be zero?

Last Answer : It  can  only  if  they  have  equal  charges.

Description : Area under current-time graph represents A. magnitude of charge B. dielectric C. amount of positive charge D. amount of negative charge

Last Answer : magnitude of charge

Description : Electron-withdrawing groups are meta directors because : (a) the carbonium ion intermediate has a negative charge on the meta position. (b) the more stable resonance hybrid occurs with meta ... the electrophile. (d) the carbonium ion intermediate has a positive charge on the meta position

Last Answer : the more stable resonance hybrid occurs with meta attachment of the electrophile.

Description : The compound methylamine, H3C–NH2, contains a C–N bond. In this bond, which of the following best describes the charge on the nitrogen atom? (a) slightly positive (b) uncharged (c) slightly negative (d) –1

Last Answer : slightly negative

Description : Alpha rays are different from beta rays in one of the following ways. Are they different since: w) alpha rays are deflected in a magnetic field and beta rays are not x) alpha rays are ... negative charge z) alpha rays are produced within the nucleus and beta rays are produced outside the nucleus 

Last Answer : ANSWER: Y -- ALPHA RAYS HAVE A POSITIVE CHARGE AND BETA RAYS HAVE A NEGATIVE CHARGE

Description : Heat given to an ideal gas under isothermal conditions is used in which work? -General Knowledge

Last Answer : When heat is given to a gas in an isothermal change, the result will be. External work done and also rise in temp.

Description : Heat given to an ideal gas under isothermal conditions is used in which work? -General Knowledge

Last Answer : When heat is given to a gas in an isothermal change, the result will be. External work done and also rise in temp.

Description : Heat given to an ideal gas under isothermal conditions is used in which work?

Last Answer : n doing external work

Description : Mark the correct option: a) Surface mail items received from any country for delivery in India may be redirected to any place within India. b) First class mail surcharge or un surcharged are eligible ... by the surface mail without any charge for the redirection. d) All of the above are correct

Last Answer : d) All of the above are correct

Description : Mark the correct option a) The camp bag booked as parcel will be sent by surface route and will be charged with the postage payable on a parcel weighting 10 Kg plus registration fee and incidental charges ... camp bag is due to be collected on any day including Sunday & Holiday. d) All of these

Last Answer : b) The camp bag booked as letter mail will not be charge with any additional postage other than Registration fee