AIIMS 2019 Chemistry Enzyme Catalysis MCQ Question
Assertion: Fructose-1,6 diphosphate is converted into glyceraldehyde-3-phosphate and dihydroxy-acetone-3- phosphate.
Reason: In the presence of enzyme aldolase, conversion offructose-1,6 diphosphate into 3-phosphoglyceraldehyde and dihydroxyacetone 3-phosphate is facilitated.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
In the presence of the enzyme aldolase, fructose 1,6-diphosphate undergoes a cleavage reaction to yield two triose sugars: glyceraldehyde-3-phosphate (G3P) and dihydroxyacetone phosphate (DHAP). This reaction is a key step in glycolysis, facilitating the breakdown of glucose for energy production. Other options may represent different metabolic pathways or substrates that do not accurately reflect the specific enzymatic reaction catalyzed by aldolase, which is crucial for the conversion of fructose 1,6-diphosphate into these two three-carbon intermediates.
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