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Is the responsiveness of cells to hormones determined by the presence or absence of specific hormone receptor proteins?
Yes, the responsiveness of cells to hormones is determined by the presence of specific hormone receptor proteins on the cell surface or inside the cell. When a hormone binds to its corresponding receptor, it triggers a cellular response. Cells without the specific receptor for a hormone are not able to respond to that hormone.
Why target cell respond to the hormone while others are uneffected?
Hormones are chemical messengers. In order to have an effect on a cell then it is necessary for the cell to have the correct receptor proteins. The hormone can bind to these receptor proteins and therefore will affect the cell.
Which hormone contain iodine?
Iodine is found in thyroxine.It is secreted by thyroid
What molecules determine the tissue specificity of hormones?
The tissue specificity of hormones is determined by the presence of specific hormone receptors on the surface of target cells. These receptors are proteins that can only bind to specific hormones, allowing for a precise response in a particular tissue. The binding of a hormone to its receptor triggers a specific signaling pathway that leads to the cellular response.
Why do only target cells respond to the hormone while the others are unaffected?
Target cells have specific receptors that recognize and bind to the hormone, triggering a response. Non-target cells either lack the necessary receptors or have receptors that do not bind the hormone, so they do not respond to it. This specificity allows hormones to selectively regulate the functions of specific tissues or organs in the body.
What element thyroid hormone contain?
Thyroid hormones contain the element: IODINE
Why do hormones affect some organs but not others?
Because hormones have specific hormone binding sites to act
What hormone do contraceptives contain?
Contraceptives contain two hormones, estrogen and progestin or progestin only.
What is the definition of a target cell and why are all cells not considered target cells for all hormones?
A target cell is a specific cell that has receptors for a particular hormone, allowing it to respond to that hormone's signals. Not all cells are considered target cells for all hormones because each hormone is designed to interact with specific receptors on specific cells, leading to specific responses in the body. This specificity ensures that hormones only affect the cells that are meant to respond to them, maintaining the body's balance and regulation.
Is the responsiveness of cells to hormones determined by the presence or absence of specific hormone receptor proteins?
Yes, the responsiveness of cells to hormones is determined by the presence of specific hormone receptor proteins on the cell surface or inside the cell. When a hormone binds to its corresponding receptor, it triggers a cellular response. Cells without the specific receptor for a hormone are not able to respond to that hormone.
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.
Why target cell respond to the hormone while others are uneffected?
Hormones are chemical messengers. In order to have an effect on a cell then it is necessary for the cell to have the correct receptor proteins. The hormone can bind to these receptor proteins and therefore will affect the cell.
Do hormones stimulate orinhibit growth?
Both. It depends on the specific hormone in question.
Definition of tropic hormone?
Tropic hormones are hormones that regulate the secretion of other hormones from endocrine glands. They act on target glands to stimulate or inhibit the release of specific hormones, which then exert effects on various tissues and organs in the body. Examples include thyroid-stimulating hormone (TSH) and adrenocorticotropic hormone (ACTH).
Why hormones can contact virtually all the cells of your body yet only activate the appropiate target cells?
The receptor molecules have the " lock " that the " key " of the hormone fits into . Surface markers, generally glycoproteins, must match up for the hormone to dock at the cell and a signal transduction pathway is then initiated.
What hormones is called personality hormone?
because they have different personalities
Which hormone affect only certain cells?
Because they only activate target cells that have special receptors that only work when that specific hormone attaches to it.
