TLS Online TPP Program

#Question id: 464


Calculate the equilibrium constant for an oxidation-reduction reaction involving the transfer of 1 mole of electrons with DE0ʹ= 0.25 V. (R = 8.315 JK-1mol-1, F = 96.48 kJV-1mol-1, T = 298 K)

#SCPH05 I Biotechnology
  1. 1

  2. 6 x 10^-5  

  3. 1.7 x 10^4

  4. 0.49

More Questions
TLS Online TPP Program

#Question id: 10341

#I Life Science/ Life Sciences Group – I-V

The accumulation of nitrate that results from diminished nitrate reductase activity, this symptoms is caused by

TLS Online TPP Program

#Question id: 10341

#SCPH05 I Biotechnology

The accumulation of nitrate that results from diminished nitrate reductase activity, this symptoms is caused by

TLS Online TPP Program

#Question id: 10341

#SCPH06 I Botany

The accumulation of nitrate that results from diminished nitrate reductase activity, this symptoms is caused by

TLS Online TPP Program

#Question id: 10342

#I Life Science/ Life Sciences Group – I-V

Nitrate reductase is an important enzyme for nitrate assimilation. Given below some regulation of nitrate reductase activity through phosphorylation and dephosphorylation.

a) Light, and other environmental factors stimulate a protein phosphatase that dephosphorylates a key serine residue in the hinge 1 region of nitrate reductase and thereby activates the enzyme

b) In Dark, and Mg2+ stimulate a protein kinase that phosphorylates the same serine residues, which then interact with a 14-3-3 inhibitor protein, and thereby inactivate nitrate reductase

c) In Light, and Mg2+ stimulate a protein kinase that phosphorylates the serine residues, and thereby activate nitrate reductase

d) In Dark, and other environmental factors stimulate a protein phosphatase that dephosphorylates a key serine residue in the hinge 1 region of nitrate reductase and thereby inactivates the enzyme

Which of the following statements about regulation of nitrate reductase is correct?

TLS Online TPP Program

#Question id: 10342

#SCPH05 I Biotechnology

Nitrate reductase is an important enzyme for nitrate assimilation. Given below some regulation of nitrate reductase activity through phosphorylation and dephosphorylation.

a) Light, and other environmental factors stimulate a protein phosphatase that dephosphorylates a key serine residue in the hinge 1 region of nitrate reductase and thereby activates the enzyme

b) In Dark, and Mg2+ stimulate a protein kinase that phosphorylates the same serine residues, which then interact with a 14-3-3 inhibitor protein, and thereby inactivate nitrate reductase

c) In Light, and Mg2+ stimulate a protein kinase that phosphorylates the serine residues, and thereby activate nitrate reductase

d) In Dark, and other environmental factors stimulate a protein phosphatase that dephosphorylates a key serine residue in the hinge 1 region of nitrate reductase and thereby inactivates the enzyme

Which of the following statements about regulation of nitrate reductase is correct?

TLS Online TPP Program

#Question id: 10342

#SCPH06 I Botany

Nitrate reductase is an important enzyme for nitrate assimilation. Given below some regulation of nitrate reductase activity through phosphorylation and dephosphorylation.

a) Light, and other environmental factors stimulate a protein phosphatase that dephosphorylates a key serine residue in the hinge 1 region of nitrate reductase and thereby activates the enzyme

b) In Dark, and Mg2+ stimulate a protein kinase that phosphorylates the same serine residues, which then interact with a 14-3-3 inhibitor protein, and thereby inactivate nitrate reductase

c) In Light, and Mg2+ stimulate a protein kinase that phosphorylates the serine residues, and thereby activate nitrate reductase

d) In Dark, and other environmental factors stimulate a protein phosphatase that dephosphorylates a key serine residue in the hinge 1 region of nitrate reductase and thereby inactivates the enzyme

Which of the following statements about regulation of nitrate reductase is correct?