If glucokinase has a higher Km for glucose than does hexokinase, but can only bind to D-glucose, while hexokinase can bind to several hexose sugars (like D-glucose, D-mannose, and D-fructose), then: glucokinase has both a higher affinity and a higher specificity for D-glucose than does hexokinase glucokinase has both a lower affinity and a lower specificity for D-glucose than does hexokinase glucokinase has a higher affinity but a lower specificity for D-glucose than does hexokinase glucokinase has a lower affinity but a higher specificity for D-glucose than does hexokinase all of the above

Phosphoribosyltransferase (PRT) catalyzes the attachment of a salvaged purine nitrogenous base on the activated form of ribose-5-phosphate called 5-phosphoribosyl- α α-pyrophosphate ( α α-PRPP). True Or False

Thiamine is the vitamin precursor for a co-enzyme called thiamine pyrophosphate or TPP.    A patient diagnosed with thiamine deficiency exhibited fatigue and muscle cramps.  The muscle cramps have been related to the accumulation of specific metabolic acids.  On the following list, circle the metabolic acids that are most likely to accumulate in a thiamine deficiency?    Note:  There may be more than one.      Isocitrate Pyruvate Succinate α-ketoglutarate Malate Fumarate   (b) Provide a brief explanation for your answer to 1 (a) here

The following Michaelis-Menten plot shows the response of phosphofructokinase-1 (PFK-1), an enzyme in the glycolytic pathway, to the presence of ATP and AMP. Based on the data below, which of the following statements apply? Select all that apply. No inhibitors (low (ATP)) 1 mM ATP + 0.1 mM AMP 1 mM ATP 1.0 2.0 (Fructose-6-phosphate) mM Fig. : Regulation of PFK activity AMP is an allosteric modifier that enhances the binding of the substrate fructose 6-phosphate а. O b. AMP is an allosteric modifier that reduces the binding of the substrate fructose 6-phosphate ATP is an allosteric modifier that reduces the binding of the substrate fructose 6-phosphate O c. O d. ATP is an allosteric modifier that enhances the binding of the substrate fructose 6-phosphate Phosphofructokinase activity