During Which Phase of the Menstrual Cycle Is It Impossible

question 158

Multiple Choice

During which phase of the menstrual cycle is it impossible for a woman to become pregnant?

• A) Follicular
• B) Luteal
• C) Menstrual
• D) none of the above

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Definitions:

Sodium-Potassium Pump

A vital cell membrane protein that pumps sodium ions out of and potassium ions into cells, essential for maintaining cellular electrochemical gradients.

ATP

Adenosine triphosphate, a molecule that carries energy within cells, serving as a primary energy currency for cellular processes.

Exocytosis

A process by which a cell transports secretory products through the cytoplasm to the plasma membrane and then into the extracellular space.

Endocytosis

The active transport of substances into the cell by the formation of invaginated regions of the plasma membrane that pinch off and become cytoplasmic vesicles.