Cell Signaling and Steroid Hormones Quiz

Steroid Hormone Receptors

• Steroid hormone receptors are typically located in the cytoplasm of target cells.

Function of Steroid Hormone Receptors

• The function of steroid hormone receptors is to bind with steroid hormones, forming a receptor-hormone complex.

Destination of Steroid Receptor-Hormone Complexes

• The ultimate destination of steroid receptor-hormone complexes is the cell nucleus, where they regulate gene expression.

Steroid Hormone Synthesis

• Steroid hormones are synthesized in the adrenal cortex and gonads.
• The main site of steroid hormone synthesis in producing cells is the endoplasmic reticulum.

Excretion of Steroid Hormones

• Steroid hormones are excreted from the body through the liver and kidneys.

Formation of Receptor-Hormone Complex

• When the receptor-hormone complex is formed, it triggers a signal transduction pathway, leading to changes in gene expression.

Function of Activated Genes

• The function of activated genes in the cytoplasm is to synthesize new proteins, which then carry out specific cellular responses.

Reflex Pathways

• Steroid hormones typically do not mediate reflex pathways that require rapid responses because they work through gene transcription, which is a slower process compared to neurotransmission.

Test your knowledge on cell signaling pathways and the production of steroid hormones in the body. Questions may cover second messenger systems, G protein subtypes, and the synthesis of steroid hormones from cholesterol.