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How can a target cell's response to a hormone be amplified more than a millionfold?
Wiki User
∙ 10y ago
Basically a hormone binds to an membrane receptor or a target inside of the cell, changing the conformation of the receptor. In the receptor's new conformation, it typically has a new enzymatic activity or a subunit with enzymatic activity is released or other reactions may occur. The point is, the binding of hormone to receptor acts to turn on a molecular "switch" enabling a biochemical pathway to proceed. A downstream enzyme is activated and can then activate further downstream enzymes. Each enzyme is capable of activating several downstream enzymes and in this way, a single hormone messenger can cause the activation of several times more downstream elements. Typically, a transcription factor will eventually be activated and a gene will be turned on, creating mRNA. This mRNA will be translated into protein, which further alters the cellular behavior.
Wiki User
∙ 10y ago
Wiki User
∙ 12y agoRegulatory proteins present inside the cell
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Which of the following occurs in situations where more than one hormone produces the same effects at the target cell and their combined effects are amplified?
Hormone synergism happens and produces results greater than the individual effects of the hormones involved.
What is the method that tropic and nontropic hormones produce response?
Tropic hormones stimulate endocrine glands to release another hormone which affects the target cells whereas non-tropic hormones act directly on the target cells.
Are hormones target molecules or signal molecules?
Hormones affect target cells because target cells have receptors that bind with certain hormones (they're specific). If a cell does not have a receptor then it is not affected by hormones. Target cells (which do have the receptor for a particular hormone) would be affected by the hormone.
Target cells for a given hormone have the correct?
receptors
Why do lipid soluble signaling molecules like testosterone cross membranes of all cells but effect only target cells?
Because response of a cell to a signaling requires that the responding cell have receptors that recognize that hormone. Only target cells of a signal have the receptors for the signal.
Which of the following occurs in situations where more than one hormone produces the same effects at the target cell and their combined effects are amplified?
Hormone synergism happens and produces results greater than the individual effects of the hormones involved.
How do hormone and target cell recognize one another?
Hormones are specific molecules released by endocrine glands into the bloodstream. Each hormone binds to a specific receptor protein on the surface of the target cell. The receptor protein acts like a lock and key, ensuring that only the specific hormone can bind and trigger a cellular response in the target cell.
What is a target organ?
A target organ is an organ that is targeted by a drug or hormone. These drugs usually stimulate the organ to produce its own hormones or react positively and function in response to the drug, such as adrenaline to the heart.
What is the target for ACTH?
ACTH means adrenocorticotrophic hormone. The target for this hormone is adrenal gland. It stimulate the gland to produce the corticosteroid hormone.
What is found in or on a hormone's target cell?
Hormone receptor
What are the target organ of the Serotonin hormone?
Serotonin is not a hormone. It is a neurotransmitter.
Which one is the main primary target tissue of Parathyroid hormone the kidney or bones?
The main primary target tissue of the Parathyroid hormone is the bone, but the kidneys are a target as well.
What type of structure would a hormone's target posses that other non-target organs would not?
Receptors for that hormone
What is the method that tropic and nontropic hormones produce response?
Tropic hormones stimulate endocrine glands to release another hormone which affects the target cells whereas non-tropic hormones act directly on the target cells.
Why target cell respond to the hormone while others are uneffected?
Target cells respond to hormones because they have specific receptors for the hormone on their cell membrane or inside the cell. These receptors enable the hormone to bind and initiate a cellular response. Other cells that do not have the specific receptors for that hormone are unaffected because they cannot bind to the hormone or activate the necessary signaling pathways.
What is the destination for a hormone?
Target tissue
Where do hormone go?
hormones go to there target cells or target organs
