Respuesta :
When steroid hormones and polypeptide hormones have similar effects on a population of target cells, the polypeptide hormones activate effector proteins that are already present in the cell whereas steroid hormones alter the synthesis of effector proteins.
What is the relationship between protein and the Steroid hormone?
A cell's surface receptor allows the steroid hormone, which is attached to its plasma carrier protein, to enter the cell. The lysosome breaks down the complex, releasing free steroid hormone into the cell where it acts at the genomic level or goes through metabolism.
The actions of polypeptide hormones ;
Growth factors and peptide hormones attach to and activate cell surface receptors to start signaling. The cellular activity is influenced by interactions with the active receptors.
How Steroid hormones work?
By crossing the cell membrane, entering the nucleus, attaching to DNA, and starting gene transcription and protein synthesis, steroid hormones have an effect on cells. Synthetic compounds known as anabolic steroid hormones behave similarly to testosterone.
So lastly we can say that - When a steroid hormone and a polypeptide hormone exert similar effects on a population of target cells, then - the steroid hormones affect the synthesis of effector proteins, whereas polypeptide hormones activate effector proteins already present in the cell .
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