Suppose Scientists Discover a New Extracellular Protein That Causes Increases

Multiple Choice

Suppose scientists discover a new extracellular protein that causes increases in cell size.In order to investigate whether cell surface receptors are involved in binding this protein, they could

A) increase the concentration of the protein outside the cell.
B) remove the protein from the extracellular medium.
C) measure enzymatic activity within the cell.
D) apply inhibitors known to block specific membrane receptors.
E) measure the growth of the cell over time.