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A chemical acts slowly, requiring hours to take effect. It may pass in and out of many cells in which they have no effect. When they find appropriate receptor in their target cell they bind to it. Chemical is :
- a)adrenaline
- b)somatotropin
- c)oxytocin
- d)aldosterone
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
A chemical acts slowly, requiring hours to take effect. It may pass in...
Aldosterone is synthesized in the zona glomerulosa of the adrenal gland. It regulates electrolyte excretion and intravascular volume mainly through its effects on the distal tubules and cortical collecting ducts of the kidneys in which it acts to increase sodium reabsorption and potassium excretion.
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A chemical acts slowly, requiring hours to take effect. It may pass in...
Chemical Acting Slowly and Requiring Hours to Take Effect
The chemical described in the question acts slowly and requires hours to take effect. This indicates that it is a hormone rather than a neurotransmitter, as hormones generally have a slower onset of action compared to neurotransmitters.
Passing In and Out of Many Cells without Effect
The chemical mentioned in the question passes in and out of many cells without having any effect. This indicates that it is not binding to any receptors in these cells. Hormones typically bind to specific receptors on target cells to exert their effects. Therefore, the chemical is likely to be a hormone that is circulating through the bloodstream and interacting with various cells until it finds its appropriate receptor.
Binding to Appropriate Receptors in Target Cell
When the chemical finds its appropriate receptor in the target cell, it binds to it. This binding is crucial for the chemical to exert its specific effects on the target cell. The receptor acts as a molecular "lock" that can only be "unlocked" by the specific chemical "key". Once the chemical binds to its receptor, it initiates a series of intracellular signaling events that ultimately lead to the desired physiological response.
Identification of the Chemical
Among the given options, the chemical that matches the description is aldosterone. Aldosterone is a hormone produced by the adrenal glands, specifically in the zona glomerulosa of the adrenal cortex. It acts primarily on the distal tubules and collecting ducts of the kidneys, where it regulates the reabsorption and excretion of sodium and potassium ions.
Conclusion
In conclusion, the chemical described in the question is aldosterone. It acts slowly, requiring hours to take effect, and passes in and out of many cells without effect until it finds its appropriate receptor in the target cell. Once it binds to its receptor, it initiates intracellular signaling events that regulate sodium and potassium ion balance in the kidneys.
The chemical described in the question acts slowly and requires hours to take effect. This indicates that it is a hormone rather than a neurotransmitter, as hormones generally have a slower onset of action compared to neurotransmitters.
Passing In and Out of Many Cells without Effect
The chemical mentioned in the question passes in and out of many cells without having any effect. This indicates that it is not binding to any receptors in these cells. Hormones typically bind to specific receptors on target cells to exert their effects. Therefore, the chemical is likely to be a hormone that is circulating through the bloodstream and interacting with various cells until it finds its appropriate receptor.
Binding to Appropriate Receptors in Target Cell
When the chemical finds its appropriate receptor in the target cell, it binds to it. This binding is crucial for the chemical to exert its specific effects on the target cell. The receptor acts as a molecular "lock" that can only be "unlocked" by the specific chemical "key". Once the chemical binds to its receptor, it initiates a series of intracellular signaling events that ultimately lead to the desired physiological response.
Identification of the Chemical
Among the given options, the chemical that matches the description is aldosterone. Aldosterone is a hormone produced by the adrenal glands, specifically in the zona glomerulosa of the adrenal cortex. It acts primarily on the distal tubules and collecting ducts of the kidneys, where it regulates the reabsorption and excretion of sodium and potassium ions.
Conclusion
In conclusion, the chemical described in the question is aldosterone. It acts slowly, requiring hours to take effect, and passes in and out of many cells without effect until it finds its appropriate receptor in the target cell. Once it binds to its receptor, it initiates intracellular signaling events that regulate sodium and potassium ion balance in the kidneys.
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A chemical acts slowly, requiring hours to take effect. It may pass in and out of many cells in which they have no effect. When they find appropriate receptor in their target cell they bind to it. Chemical is :a)adrenalineb)somatotropinc)oxytocind)aldosteroneCorrect answer is option 'D'. Can you explain this answer?
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