What term describes the situation when the level of one hormone inhibits the production of another?

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Study for the Leaving Certificate Biology Test. Prepare with flashcards and multiple-choice questions. Each question includes hints and explanations to enhance learning. Get ready to excel in your exam!

Multiple Choice

What term describes the situation when the level of one hormone inhibits the production of another?

Explanation:
Negative feedback is at work when a rise in one hormone leads to a decrease in the production of another, helping keep hormone levels balanced. For example, if cortisol builds up, it feeds back to suppress the release of CRH from the hypothalamus and ACTH from the pituitary, which then lowers cortisol production. This mechanism contrasts with positive feedback, which would amplify the signal, and with feed-forward loops or generic homeostatic ideas that don’t specifically describe the restraint of another hormone’s production.

Negative feedback is at work when a rise in one hormone leads to a decrease in the production of another, helping keep hormone levels balanced. For example, if cortisol builds up, it feeds back to suppress the release of CRH from the hypothalamus and ACTH from the pituitary, which then lowers cortisol production. This mechanism contrasts with positive feedback, which would amplify the signal, and with feed-forward loops or generic homeostatic ideas that don’t specifically describe the restraint of another hormone’s production.

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