#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?
#Question id: 11089
#I Life Science/ Life Sciences Group – I-V
A 45-year-old man inhaled as much air as possible
and then expired with a maximum effort until no more air could be expired. This
produced the maximum expiratory flow-volume curve shown in the following
diagram. What is the forced vital capacity of this man (in liters)?
#Question id: 10504
#SCPH05 I Biotechnology
Under which conditions, the Pseudomonas aeruginosa synthesize and release of siderophores
#Question id: 2625
#SCPH28 | Zoology
positive regulation is applied when
#Question id: 5100
#SCPH01 Biochemistry
During frog development, the blastocoel ________.