Practice Questions

TLS Online TPP Program

#Question id: 150

How do the pKa values of an ionizable side chain compare when the amino acid is free versus when it is in a polypeptide chain?

#XL - T Zoology

The pKa of the side chain is independent of whether the amino acid is in a polypeptide chain or is free.
The pKa of the side chain is always lower for the free amino acid.
The pKa of the side chain may be lower or higher in a polypeptide chain due to weaker inductive effects and differences in their microenvironments.
The pKa of the side chain is usually higher in a polypeptide chain due to stabilization from nearby residues in the three-dimensional structure.

More Questions

TLS Online TPP Program

#Question id: 16490

#XL - T Zoology

Significance of producing transgenic plants are aimed at producing

TLS Online TPP Program

#Question id: 19512

#XL - P Chemistry

In a group of the periodic table the Ionization enthalpies of the elements decreases from top to bottom because of ———-

TLS Online TPP Program

#Question id: 11486

#XL - T Zoology

The contraction of skeletal muscles is based on ________

TLS Online TPP Program

#Question id: 17803

#XL - R Botany

Mitotic activity by the apical meristem of a root makes which of the following more possible?

TLS Online TPP Program

#Question id: 8919

#XL - R Botany

The last common ancestor of all animals was probably a