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Question

How do steroid hormones exert their action?


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Solution

Steroid hormones:

  1. Steroid hormones control protein synthesis and gene expression through their interactions with intracellular receptors.
  2. It has an impact on development and physiology.
  3. The interaction of the hormone-receptor complex with the genome triggers the creation of mRNA and proteins, which promotes tissue growth and differentiation.

Working of steroid hormones:

  1. Target cells are invaded by steroid hormones, which bind to a specific receptor and activate a set of genes to produce proteins.
  2. Steroid hormones first cross the target cell's cell membrane before causing changes inside the cell.
  3. Because they are fat-soluble, steroid hormones—unlike non-steroid hormones—can achieve this.
  4. The steroid hormone connects with a particular receptor that is only present in the cytoplasm of the target cell once it has entered the cell.
  5. The receptor-bound steroid hormone then enters the nucleus where it affects the synthesis of a certain messenger RNA (mRNA), which in turn influences the synthesis of the protein.


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