STUDENTS’ UNDERSTANDING OF MICHAELIS-MENTEN KINETICS AND ENZYME INHIBITION
Jon-Marc G Rodriguez
10.25394/PGS.7798814.v1
https://hammer.purdue.edu/articles/thesis/STUDENTS_UNDERSTANDING_OF_MICHAELIS-MENTEN_KINETICS_AND_ENZYME_INHIBITION/7798814
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<p>Currently there is a need for research that explores students’ understanding of advanced topics in
order to improve teaching and learning beyond the context of introductory-level courses. This
work investigates students’ reasoning about graphs used in enzyme kinetics. Using semi-structured
interviews and a think aloud-protocol, 14 second-year students enrolled in a biochemistry course
were provided two graphs to prompt their reasoning, a typical Michaelis-Menten graph and a
Michaelis-Menten graph involving enzyme inhibition. Student responses were coded using a
combination of inductive and deductive analysis, influenced by the resource-based model of
cognition. Results involve a discussion regarding how students utilized mathematical resources to
reason about chemical kinetics and enzyme kinetics, such as engaging in the use of
symbolic/graphical forms and focusing on surface-level features of the equations/graphs. This
work also addresses student conceptions of the particulate-level mechanism associated with
competitive, noncompetitive, and uncompetitive enzyme inhibition. Based on the findings of this
study, suggestions are made regarding the teaching and learning of enzyme kinetics.
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2019-06-10 17:22:20
Chemistry Education Research
Enzyme Kinetics
Mathematical Reasoning
Graphical Reasoning
Biochemistry
Biochemistry
Education
Higher Education