She hypothesizes that the ligand she added binds to an enzyme-linked receptor. Enzymes catalyze reactions.
<h3>What are enzymes?</h3>
Enzymes are specific proteins that catalyze chemical reactions by lowering the activation energy of the reaction.
Enzymes can bind to specific substrates to phosphorylate them and thus activate a signaling pathway.
Enzymes are fundamental proteins that act during different metabolic processes in an organism.
Learn more about enzymes here:
brainly.com/question/1596855
