Biochemistry Pentose Phosphate Pathway Glucose Oxidation Online Exam Quiz
Biochemistry Pentose Phosphate Pathway Glucose Oxidation GK Quiz. Question and Answers related to Biochemistry Pentose Phosphate Pathway Glucose Oxidation. MCQ (Multiple Choice Questions with answers about Biochemistry Pentose Phosphate Pathway Glucose Oxidation
Which one out of the following enzymes acts in the pentose phosphate pathway?
Options
A : Aldolase
B : Glycogen phosphorylase
C : Pyruvate kinase
D : 6-phosphogluconate dehydrogenase
Which one of the following statements is correct about the pentose phosphate pathway?
Options
A : It generates 6 moles of CO2 for each mole of glucose consumed
B : It generates 38 mol of ATP per mole of glucose consumed
C : It is a reductive pathway that consumes NADH
D : Present in plants but not in animals
Which of the following statements is correct about oxidative pentose phosphate pathway?
Options
A : It generates NADH
B : It oxidizes NADPH to NADP+
C : The pathway supplies ribose 5-phosphate and NADPH in the quantities the cell requires
D : Glucose 6-phosphatase catalyzes the rate limiting reaction of the pathway
Which of the following statements is correct about the reductive pentose phosphate pathway?
Options
A : It is not reversible
B : Transketolase transfers 3 carbon units
C : Transaldose transfers 2 carbon units
D : Pentoses can provide glycolytic intermediates
What is the first reaction of the pentose phosphate pathway?
Options
A : Oxidation of glucose 6-phosphate to 6-phosphoglucono-?-lactone
B : Oxidation of 6-phosphogluconate to ketopentose ribulose 5-phosphate
C : Reduction of 6-phosphoglucono-?-lactone to glucose 6-phosphate
D : Reduction of ketopentose ribulose 5-phosphate to 6-phosphogluconate
The use of NADPH generated from pentose phosphate pathway cannot be ____________
Options
A : oxidized in the electron transport chain to provide 38 ATPs
B : Used for the synthesis of fatty acids
C : Used for the macrophageal functions
D : Used for steroid synthesis
Conversion of xylulose 5-phosphate to ribulose 5-phosphate is catalyzed by ___________
Options
A : Phosphopentose epimerase
B : Transaldolase
C : Transketolase
D : Phosphopentose isomerase
In the pentose phosphate pathway, the major products are ____________
Options
A : Ribulose and NADPH
B : Ribulose and NADH
C : Ribulose and NAD+
D : Ribulose and ATP
What is the main function of the pentose phosphate pathway?
Options
A : Supply NADP+
B : Supply NADH
C : Supply energy
D : Supply pentoses and NADPH
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