Of two agonists acting at the same receptor, X has an EC50 value of 107 M and Y has an EC50 value of 10 M. Which one of the following statements most accurately reflects this information? (use the axes below to help work our the answer) 100 [agonist log M) O Agonist X has a higher pEC than agonist Y. O Agonist X is less potent than agonist Y O Agonist X has a greater maximal agonist effect than agonist Y O The slope of the concentration-sesponse curve for agonist Y will be greater than that for agonist X. Response (% max)

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A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.