You read an article in the newspaper about the discovery of a new steroid hormone. What can you predict about how it is synthesized and/or stored by the signaling cell, how it is transported through the blood, and how it acts on the target cell?
Answers
Answer:
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Explanation:
Steroid hormones regulate growth and development in certain types of cells and are involved in a wide variety of physiological responses in most tissues. These responses depend on the association of a hormone with a receptor protein and the subsequent activation of different genes at precise stages during embryonic development and cell differentiation. The primary role of the steroid receptor complex is to bind to specific loci in the genome and regulate rates of gene transcription, but in addition steroids can also modulate the expression of some genes posttranscriptionally. The nuclear binding sites are specific DNA sequences termed steroid response elements that, upon steroid binding, function as transcriptional enhancers. After this interaction there are specific changes in the structure of chromatin which correlate with transcription of the gene and may mediate the action of the steroid. There are a variety of transcriptional enhancers associated with certain genes which interact with activating proteins and these could account for the expression of different networks of genes in individual cells that respond to different physiological stimuli.
the steroid hormone are usually produced by the gonads , the adrenal cortex and the hypothalamus and pituitary system
Explanation:
- the signalling system of the steroid hormone is different from the rest of the hormone. Their receptor at present inside the cell. as it is made up of fat it has the capability to cross the cell membrane and enter into the cell.
- They produce difference in the steroid receptors which are present in the nucleus of the cell. they are transported into the blood and it acts on the target organ which results in the change
To know more,
animal cells lipid like steroid hormones are synthesised a)SER b .
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