Imagine That a Protein Molecule Is to Be Exported from a Cell

question 21

Essay

Imagine that a protein molecule is to be exported from a cell. Describe the pathway that the protein takes from the point of synthesis to export.

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Definitions:

Prostaglandins

A group of physiologically active lipid compounds having diverse hormone-like effects, such as regulating inflammation and body temperature.

Cortisol

A steroid hormone, secreted by the adrenal cortex, that helps the body adjust to long-term stress; stimulates conversion of other nutrients to glucose in the liver, resulting in increased blood glucose concentration.

Progesterone

A steroid hormone secreted by the corpus luteum of the ovary and by the placenta, which acts to prepare the uterus for implantation of the fertilized egg.

Secreted by Ovary

Refers to substances, such as hormones (e.g., estrogen and progesterone), that are released or produced by the ovaries.