#Question id: 10354
#XL - Q Biochemistry
One of the enzyme that are involve in the ammonium assimilation is Asparagine synthetase (AS), some statements given below about AS such as,
a) This enzyme that catalyzes this reaction, is found in the cytosol of leaves and roots and in nitrogen-fixing nodules
b) High levels of light and carbohydrate inhibit the expression of genes coding for AS and the activity of the enzyme
c) Conditions of ample energy stimulate AS, thus they favor nitrogen assimilation into glutamine and glutamate
d) Energy-limited conditions inhibit GS and GOGAT, stimulate AS, and thus favor nitrogen assimilation into asparagine, a compound that is rich in nitrogen and sufficiently stable for long-distance transport or long term storage
Which of the following statements about AS is correct?
#Question id: 10356
#XL - Q Biochemistry
Why the GS and GOGAT is activated in light and while the AS is inhibited?
#Question id: 10357
#XL - Q Biochemistry
Why the glutamine and glutamate will not be transported while asparagine will prefer to be transported?
#Question id: 10358
#XL - Q Biochemistry
Which of the following essential micronutrients is associated with nitrate reductase enzyme found in higher plants?
#Question id: 10359
#XL - Q Biochemistry
Nitrate reductases of higher plants are composed of two identical subunits, each containing three prosthetic groups. Which of the following is not the prosthetic group of nitrate reductase;
#Question id: 10360
#XL - Q Biochemistry
How much ATP require in the nitrogen fixation or conversion of ammonium assimilation in the system?