\begin{tabular}{|l|l|}
\hline
List - I & List - II
\hline
A. Glut - 4 & I. Hormone
B. Antibody & II. Enzyme
C. Trypsin & III. Fights infectious agents
D. Insulin & IV. Enables glucose transport into cells
\hline
\end{tabular}
The correct answer is
Show Hint
Understanding the biological roles of molecules like insulin, trypsin, antibodies, and glutamine can help with the correct matching in such questions.
Step 1: We know that:
\begin{itemize}
\item Glut is a protein responsible for transporting glucose, so it is associated with Enabling glucose transport into cells (IV).
\item Antibody helps in fighting infections, so it is associated with Fighting infectious agents (III).
\item Trypsin is an enzyme that breaks down proteins, so it is associated with Enzyme (II).
\item Insulin is a hormone that regulates glucose metabolism, so it is associated with Hormone (I).
\end{itemize}