The isoelectric pH is

The pH at which an amino acid has no net charge on it is known as its isoelectric point (pI).

A

False

B

True

If pK1 = 2.34 and pK2 = 9.60, then the isoelectric point pI is?

A

5.87

B

5.97

C

3.67

D

11.94

A protein is neutral at the isoelectric point.

A

True

B

False

When pH of enzyme solution is below their isoelectric point, the enzymes will be negatively charged and bind to anion exchangers.

A

True

B

False

Isoelectric point is the pH value at which the net positive and negative charge in a protein is same.

A

False

B

True

What is the isoelectric point of insulin?

A

4.9

B

7.0

C

11.0

D

5.3

When isoelectric precipitation is used as a convenient method for bioseparation?

A

Fractionating a protein mixture

B

Mixing of protein

C

Saturation of protein

D

Dissociation of protein structure

The isoelectric point of a protein is defined as

A

The pH at which the net charge on the molecule is zero

B

The pH at which all groups are protonated

C

The pH at which all groups are unprotonated

D

The pH at which each acidic group is protonated and each basic group is unprotonated

The pK_a values for the three ionisable groups X, Y and Z of glutamic acid are 4.3, 9.7 and 2.2 respectively
Basics of Organic Reaction Mechanism mcq question image

Basics of Organic Reaction Mechanism mcq question image

The isoelectric point for the amino acid is

A

7.00

B

3.25

C

4.95

D

5.95

The isoelectric pH is

Related Questions