Menstruation Begins Because

question 14

Multiple Choice

Menstruation begins because

• A) The pituitary triggers it
• B) Luteinizing hormone is at its peak
• C) Estrogen activity peaks
• D) Progesterone production is highest
• E) Progesterone and estrogen levels decline

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Definitions:

ATP To ADP

The process by which adenosine triphosphate (ATP) releases a phosphate group to become adenosine diphosphate (ADP), releasing energy for cellular activities.

Equilibrium Point

A condition or state where all competing influences are balanced, often referred to in physical and economic models.

Competitive Inhibition

Binding of a substance (the competitive inhibitor) to the active site of an enzyme, thus lowering the rate of the reaction catalyzed by the enzyme. Compare with noncompetitive inhibition.

Allosteric Site

A site on an enzyme other than the active site, where binding of a molecule can change the enzyme's activity, often regulating its function.