Question

What is an adrenalin receptor? For a bio project at school i have to write the gene name, the # of amino acids, the # of peptides, the tissue signal, the role, the interactions, the active site/substrate, the disease/cures/inhibitors. i've googled adrenalin receptors and i cant find ANYTHING. wikipedia has something about adrenergic receptors but it doesnt make any sense to me and im not sure its the same thing.

if you could explain what they are and/or give me a helpful website that explains them that would be amazing! thank you!