Practice Questions

TLS Online TPP Program

#Question id: 10302

During respiration, given below some of the reaction of glycolysis are irreversible which are bypass during gluconeogenesis,which of the following ics correcty involve in

#Unit 6. System Physiology – Plant

Glucose to glucose 6-phosphate, Fructose 6-phosphate to fructose 1,6-bisphosphate, Phosphoenolpyruvate to pyruvate
Glucose to glucose 6-phosphate, Fructose 1,6-bisphosphate to DHAP and G3P, Phosphoenolpyruvate to pyruvate
Glucose to Glucose 6-phosphate, Fructose 6-phosphate to fructose 1,6-bisphosphate, Glyceraldehyde 3-phosphate to 1,3-bisphosphoglycerate
Glucose 6-phosphate to Fructose 6-phosphate, 1,3-bisphosphoglycerate to 3-phosphoglycerate, Phosphoenolpyruvate to pyruvate

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#Question id: 73

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the Variation of Reaction Spontaneity (Sign of ΔG) given in Column I with the Signs of ΔH and ΔS given in column II.

COLUMN I	COLUMN II
	ΔH	ΔS	ΔG = ΔH – TΔS
1.	−	+	a. The reaction is both enthalpically and entropically opposed. It is nonspontaneous (endergonic) at all temperatures.
2.	−	−	b. The reaction is enthalpically opposed (endothermic) but entropically favored. It is spontaneous only at temperatures above T = ΔH/ΔS.
3.	+	+	c. The reaction is enthalpically favored but entropically opposed. It is spontaneous only at temperatures below T = ΔH/ΔS.
4.	+	−	d. The reaction is both enthalpically favored (exothermic) and entropically favored. It is spontaneous (exergonic) at all temperatures.