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Worksheets9.5 Microbial Physiology Module 9: Metabolism
Total questions: 13
Worksheet time: 7mins
Which phase of the Pentose Phosphate Pathway generates NADPH?
Oxidative phase
Non-oxidative phase
Both phases
Neither phase
Which enzyme catalyzes the conversion of glucose-6-phosphate to 6-phosphogluconolactone?
Glucose-6-phosphate dehydrogenase
Phosphofructokinase
Hexokinase
Transaldolase
Which molecule is a key product of the non-oxidative phase of the PPP?
Fructose-6-phosphate
Glucose
Pyruvate
NADH
Which key intermediate is formed during the Entner-Doudoroff pathway?
Glucose-6-phosphate
6-phosphogluconate
Fructose-1,6-bisphosphate
Succinyl-CoA
What is the main product of the Entner-Doudoroff pathway?
Glucose
2 ATP
NADPH and pyruvate
Acetyl-CoA
What is the primary function of the Methylglyoxal pathway?
Degradation of glucose to CO₂
Detoxification of methylglyoxal
ATP production
Lipid synthesis
Which enzyme converts methylglyoxal to lactate?
Lactate dehydrogenase
Glyoxalases
Aldolase
PEPCK
Which of the following organisms commonly use the phosphoketolase pathway?
Lactic acid bacteria
Cyanobacteria
Archaea
Mammals
Which is NOT a product generated by the phosphoketolase pathway?
Pyruvate
CO₂
Acetate
Ethanol
What is the purpose of the glyoxylate cycle?
Energy production from glucose
Conversion of fats to carbohydrates
ATP synthesis
Protein degradation
Which enzyme is unique to the glyoxylate cycle?
Citrate synthase
Isocitrate lyase
Pyruvate dehydrogenase
Enolase
What is the final product of the glyoxylate cycle?
Oxaloacetate
Citrate
Acetyl-CoA
Glucose
How many NADPH molecules are produced per glucose in the PPP?
1
2
3
4
