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What are the structures that allow hormones to bind to their target cells?
Wiki User
∙ 9y ago
Receptors allow hormones to bind to their target cells.
Wiki User
∙ 9y ago
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What Peripheral cells sensitive to the presence of hormones are called?
Target Cells
Hormones attach to plasma membrane proteins called?
target cells
Hormones act at specific target organs because these organs contain what specific for the hormone?
target cells
Steroid hormones cannot pass through the plasma membranes of their target cells?
false-can
Why do only target cells respond to the hormone while the others are unaffected?
Only target cells respond to hormones because they have a receptor for the hormone. They are the key that fits the lock.
If hormones travel in the bloodstream why don't all tissues respond to all hormones?
The tissue/cells need a receptor that can interact with that hormone in order to respond to it. This receptor may be on a cell membrane, inside the cell, or even inside the nucleus (in the case of steroid hormones, for example.) Like many organic chemicals in the body, they have structures which result in certain parts of the molecule being presented to cells (active sites). Because cells and tissue have different structures as well, only certain cells will react to the presence of a particular hormone. Many hormones have antagonist hormones that cause an opposite effect. This helps control negative feedback when the target organ's hormone levels are too high.
How do hormones interact with target cells?
penis
Where do hormone go?
hormones go to there target cells or target organs
What are hormones transported to?
Hormones are transported to target cells, which are cells in another part of the body where the hormone will have an effect.
explain why hormones in the bloodstream are able only to affect target cells/organs and not other cells/organs?
Hormones in the bloodstream are able to affect target cells/organs and not other cells/organs because of selective permeability. This means that hormones are only able to pass through the cell membrane of certain cells and organs, and not through the cell membrane of other cells and organs. The cell membrane of the target cells and organs are specialized to allow the hormones to pass through, while the cell membrane of other cells and organs are not specialized and are therefore impermeable to the hormones. This is due to the presence of receptor proteins on the cell membrane of the target cells and organs. These receptor proteins can bind to the hormones and facilitate their entry into the cell. Since these receptor proteins are not present on the cell membrane of other cells and organs, the hormones are unable to bind to them and therefore unable to cross the cell membrane. In addition, hormones can be broken down by enzymes in the bloodstream, which means they can’t reach their target cells and organs if they are exposed to the enzymes. This further ensures that hormones only affect the target cells and organs, and not other cells and organs. In summary, hormones in the bloodstream are able to affect target cells and organs and not other cells and organs because of selective permeability and the presence of receptor proteins on the cell membrane of the target cells and organs. Other cells and organs do not have these specialized receptor proteins and therefore cannot be affected by the hormones.
What Peripheral cells sensitive to the presence of hormones are called?
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.
What is this called This structures is a group of cells that make hormones?
chemical signals of the endocrine system, the group of glands that, along with the nervous system, controls the body's responses to internal and external stimuli. Hormones are carried to their target cells in the bloodstream.
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.
What are target cells.?
In your body, you have certain cells that can receive and process hormones released by your pituitary gland, hypothalamus and other endocrine glands. However, not all cells can receive all hormones. Target cells are cells that have receptors on them for a specific hormone. So a target cell may have a receptor for GH hormone, thus allowing GH to be absorbed by only the target cells with GH receptors.
How does protein hormones reach their target cells?
Usually in blood plasma, which carries them to their target cells. They 'recognize' these cells based on receptors on the cell membranes to which they bind.
The pulsatile secretion of hormones?
is needed to prevent the downregulation of target cells
