MDCAT Biology MCQ #3278

In a metabolic pathway, the end product binds to the first enzyme to stop the production sequence. This regulatory mechanism is called:

MDCAT Biology MCQ #3278

  1. Question 1

    Q1. In a metabolic pathway, the end product binds to the first enzyme to stop the production sequence. This regulatory mechanism is called:

    • A) Irreversible inhibition
    • B) Feedback inhibition
    • C) Competitive inhibition
    • D) Non-competitive inhibition

    Answer: Feedback inhibition

    Explanation: Feedback inhibition regulates pathways via the end product; irreversible inhibition permanently destroys enzyme activity through covalent bonding at active sites.