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Worksheets9.3 Microbial Physiology Module 9: Metabolism
Total questions: 10
Worksheet time: 5mins
Which of the following coenzymes inhibit the enzymes of the citric acid cycle when they accumulate in excess?
ATP and NADH
ADP and NAD+
FADH2 and NAD+
none of these
Which of the following correctly describes the electron flow in complex IV?
cytochrome a → cytochrome b → cytochrome c
cytochrome a → cytochrome a3 → cytochrome c
cytochrome a3 → cytochrome a → cytochrome c
cytochrome c → cytochrome a → cytochrome a3
Which of the following metabolic pathways involves the transport of electron and H+ ions and the subsequent synthesis of ATP molecules?
the oxidative phosphorylation pathway
the citric acid cycle
the oxidative phosphorylation pathway and the citric acid cycle
none of these
What is the role of phosphofructokinase in glycolysis?
It converts fructose into fructose 1-phosphate.
It converts fructose 1-phosphate into fructose 1,6-bisphosphate.
It converts fructose 1,6-bisphosphate into glucose 1,6-bisphosphate.
None of these are correct.
What is the main purpose of the Pentose Phosphate Pathway?
ATP production
Production of NADPH and ribose-5-phosphate
Breakdown of fatty acids
Synthesis of amino acids
To which of the following processes do the first five steps of glycolysis belong?
the activation process
the initiation process
the initialization process
the preparation process
The conversion of glyceraldehyde 3-phosphate to 1,3-bisphosphoglycerate is a(n) _____ reaction.
Hydrolysis
Isomerization
Oxidation
Reduction
What is the by-product of the reaction that is involved in the conversion of 1,3-bisphosphoglycerate to 3-phosphoglycerate?
AMP
ADP
ATP
None of these
Which cofactor is essential for enzymes in the glyoxylate cycle?
NAD+
FAD
Mg²⁺
ATP
Which enzyme is involved in the conversion of phosphoenolpyruvate to pyruvate?
Enolase
Ketolase
Pyruvate Kinase
Pyruvate Oxidase
