What is the standard free-energy change, ΔG°, under physiological conditions (E. coli grows in the human gut, at 37 °C) for the following reaction? (Keq = 7.8 × 10^2)

Glucose + ATP → glucose 6-phosphate + ADP

#Question id: 467

#Part-B Specialized Branches in Biotechnology

The standard potential for electron transfer can be related to the standard free-energy change for redox reactions by using

#Question id: 532

#Part-B Specialized Branches in Biotechnology

In glycolysis, fructose 1,6-bisphosphate is converted to two products with a standard free-energy change (DG'°) of 23.8 kJ/mol.  Under what conditions (encountered in a normal cell) will the free-energy change (DG) be negative, enabling the reaction to proceed to the right?

#Question id: 533

#Part-B Specialized Branches in Biotechnology

Glucose, labeled with 14C in different carbon atoms, is added to a crude extract of a tissue rich in the enzymes of the pentose phosphate pathway.  The most rapid production of 14CO2 will occur when the glucose is labeled in:

#Question id: 544

#Part-A Aptitude & General Biotechnology

One of the enzymes involved in glycolysis, aldolase, requires Zn2+ for catalysis. Under conditions of zinc deficiency, when the enzyme may lack zinc, it would be referred to as the:

#Question id: 544

#Part-B Specialized Branches in Biotechnology

One of the enzymes involved in glycolysis, aldolase, requires Zn2+ for catalysis. Under conditions of zinc deficiency, when the enzyme may lack zinc, it would be referred to as the:

#Question id: 545

#Part-A Aptitude & General Biotechnology

Which one of the following is not among the six internationally accepted classes of enzymes?