1. Proteins that form stable complexes with other molecules are often referred to as receptors while their binding partners are called ligands .
2. Proteins that form stable complexes with binde molecules are often referred to as receptors , while their other partners are called ligands .

Select your answer from the options. Are these two sentences paraphrases of each other?
Choose your answer from:
[A]. no.
[B]. yes....I think the answer is
[A].