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Where would steroid hormones most likely interact with their target cell?
Wiki User
∙ 11y ago
In the nucleus.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoDna?
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What hormones can enter the target cell and bind to receptors in the nucleus?
steriod hormones - since they are lipophilic and fusses with the membrane to enter teh cell.
Thyroid hormone enters target cells in a manner similar to?
steroid hormones because both diffuse into target cell easily
Why do protein hormones need second messenger to activate target cell?
Protein hormones that need second messenger to activate a target cell are hydrophobic. They therefore need these second messengers in order to penetrate into the cell membrane. steroid hormones are hydrophilic so they do not need second messengers.
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.
Steroid hormones exert their action by?
steroid hormones can pass easily through the plasma membrane, the hormones then bind to intracellular receptors which induce a metabolic pathway which later promotes transcription of a specific gene.
How do hormones interact with target cells?
penis
What is the difference between protein hormones and steroid hormones and how they communicate with their target cells?
Steroid hormones arelipid-soluble and can dissolve easily into the cell membrane of the target cell to connect with receptors. Protein hormones are water-soluble and connect with receptors at the membrane because it can't diffuse through the membrane.
How does a hormone identify its target?
Only target cells have receptors inside cytoplazm (for steroid hormones) or on cell membrane (for protein hormones) that make the hormone active.
Steroid hormones cannot pass through the plasma membranes of their target cells?
false-can
What hormones can enter the target cell and bind to receptors in the nucleus?
steriod hormones - since they are lipophilic and fusses with the membrane to enter teh cell.
Thyroid hormone enters target cells in a manner similar to?
steroid hormones because both diffuse into target cell easily
What is the difference between receptors for steroid hormones and Peptide hormone?
Peptide based hormones exert their effects on a cell by way of second messengers (cAMP or PIP) pathways. Steroid based hormones exert their effects on a target cell via direct gene activation.
Why do protein hormones need second messenger to activate target cell?
Protein hormones that need second messenger to activate a target cell are hydrophobic. They therefore need these second messengers in order to penetrate into the cell membrane. steroid hormones are hydrophilic so they do not need second messengers.
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.
A steroid hormone acts on a target cell by?
When receptors bind at the surface of a membrane, second messengers are released. This is how peptide hormones and catecholamines affect target organ cells.
How do non steroid hormones control their target cells?
They: Bind to cell membrane receptors Use cAMP as a second messenger and they cause a cascade amplification reaction
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.
