MCQ
Estrogen and testosterone are steroid hormones, and are most likely to bind:
  • A
    Membrane ion channels
  • B
    Enzyme-linked membrane receptors
  • C
    G-protein linked membrane receptors
  • D
    Cytoplasmic receptors

Answer

  1. Cytoplasmic receptors

Explanation:

Steroid hormone receptors are found on the plasma membrane, in the cytosol and also in the nucleus of target cells. They are generally cytoplasmic intracellular receptors and initiate signal transduction for steroid hormones, which lead to changes in gene expression. These are able to pass the hydrophobic environment of the plasma membrane and bind to the cytoplasmic receptors and further alters the gene expression.

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