[Campbell Biology P.266] According to Figure 11.7 and its caption, which of the following co... | Practice Question

According to Figure 11.7 and its caption, which of the following components is not explicitly shown or mentioned as being present within the depicted model of the human β2-adrenergic receptor?

  • A: Beta2-adrenergic receptors
  • B: Cholesterol
  • C: A molecule that mimics epinephrine
  • D: A G protein

Explanation

Figure 11.7's caption explicitly describes the model as showing the human β2-adrenergic receptor, a molecule that mimics epinephrine green , and cholesterol orange . It also labels the plasma membrane. While it's a G protein-coupled receptor, a G protein itself is not shown or mentioned as a component within this specific depicted model .