#Question id: 10222
#Unit 6. System Physiology – Plant
Energy partitioning between two photosystem protects them from quick dessipation or quick inactivation this energy partitioning take place by a protein kinase that can phosphorylate a specific threonine residue on the surface of LHCII, what is the role of LHCII in phosphorylated and non-phosphorylated state?
a.) LHCII in phosphorylated state migrate towards the PSI in the unstacked region and delivers energy to the PSI
b.) LHCII in nonphosphorylated state moves back to the grana and delivers energy to the PSII
c.) LHCII in phosphorylated state migrate towards the PSII in the stacked region and delivers energy to the PSI
d.) LHCII in nonphosphorylated state moves towards the stroma lamellae unstacked region and delivers energy to the PSII
Which of the following combination is CORRECT?
#Question id: 1400
#Unit 4. Cell Communication and Cell Signaling
Which property is shared by malignant tumor cells and transformed cells in culture?
a. reduced growth factor requirement b. attachment-dependent growth
c. loss of actin microfilaments d. altered morphology
#Question id: 23814
#General Aptitude
#Question id: 8964
#Unit 9. Diversity of Life Forms
#Question id: 10297
#Unit 6. System Physiology – Plant
The following statements are related to pentose phosphate pathway.
a) The first and third steps are oxidations with large, negative standard free-energy changes and are essentially irreversible in the cell
b) NADPH rises and inhibits the first enzyme in the pentose phosphate pathway. As a result, more glucose 6-phosphate is available for glycolysis
c) All the enzymes of the reversible reaction of the pentose phosphate pathway are located in the cytosol
d) The NADPH is used for biosynthetic reactions such as lipid synthesis and nitrogen assimilation in the cytosol
which one of the following combination of above statements is incorrect?