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Multiple Choice
Which of the following functional groups is present in the enzyme RuBisCO?
A
Carbonyl group
B
Hydroxyl group
C
Carboxyl group
D
Amino group
Verified step by step guidance
1
Identify the functional groups listed in the problem: Carbonyl group, Hydroxyl group, Carboxyl group, and Amino group.
Understand the structure of each functional group: A carbonyl group contains a carbon atom double-bonded to an oxygen atom (C=O). A hydroxyl group consists of an oxygen atom bonded to a hydrogen atom (-OH). A carboxyl group is composed of a carbonyl group attached to a hydroxyl group (COOH). An amino group contains a nitrogen atom bonded to one or more hydrogen atoms (-NH2).
Recall the role of RuBisCO (Ribulose-1,5-bisphosphate carboxylase/oxygenase) in the Calvin cycle, where it catalyzes the reaction of carbon dioxide with ribulose bisphosphate.
Consider the chemical reactions catalyzed by RuBisCO, which involve the addition of carbon dioxide to a substrate, suggesting the presence of a carboxyl group.
Conclude that the carboxyl group is the functional group present in RuBisCO, as it is involved in the enzyme's catalytic activity of incorporating carbon dioxide into organic molecules.