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Fumarate is an intermediate in the citric acid cycle.Draw its structure.
Adrenal Cortex
The outer layer of the adrenal glands, which produces essential hormones such as cortisol, aldosterone, and androgens.
Paracrine Secretion
A form of cell signaling in which the target cell is close to the signal-releasing cell, involving substances that exert their effects only on neighboring cells.
Interstitial Fluid
The fluid that surrounds the cells in tissues, providing nutrients and removing waste.
Neighboring Cells
Cells that are situated close to each other, often sharing a similar function or contributing to the same biological process.
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