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What determines what cell a hormone will effect?
The target receptor proteins of cells will cause them to affected by a specific protein. These cells are also called "target" cells. Hormones flow via the bloodstream throughout the entire body, but they only affect their specific "target" cells.
Hormone and receptor interactions are based on?
Hormone and receptor interactions are based on specific binding between the hormone and its receptor. The receptor acts as a target for the hormone, triggering a series of cellular responses once bound. This interaction is highly specific, allowing for precise signaling within the body.
Which substances are found on cell surfaces and respond to nerve and hormone signals?
Receptors, such as neurotransmitter receptors and hormone receptors, are found on cell surfaces. These receptors bind to specific signaling molecules like neurotransmitters and hormones, allowing cells to respond to these signals and initiate a biological response.
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 do lipid soluble signaling molecules like testosterone cross membranes of all cells but effect only target cells?
Lipid-soluble signaling molecules like testosterone can easily cross cell membranes due to their hydrophobic nature. However, they only affect target cells because these cells express specific receptors for these molecules. Once inside the target cell, the hormone binds to its specific receptor and triggers a cellular response. Other cells without the specific receptors do not respond to the hormone.
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.
A specific protein that recognizes certain molecules bringing them across the membrane?
The protein you are referring to is likely a transporter protein, which is responsible for facilitating the transport of specific molecules across the cell membrane. These transporter proteins bind to their target molecules on one side of the membrane and undergo a conformational change to transport the molecules to the other side. Examples include glucose transporters and ion channels.
What determines what cell a hormone will effect?
The target receptor proteins of cells will cause them to affected by a specific protein. These cells are also called "target" cells. Hormones flow via the bloodstream throughout the entire body, but they only affect their specific "target" cells.
What is the specific cell recipient known as?
The specific cell recipient is known as the target cell. It is the cell that receives signals or messages from signaling cells in the body, such as hormones or neurotransmitters. Target cells have specific receptors that bind to the signaling molecules to initiate a response.
Hormone and receptor interactions are based on?
Hormone and receptor interactions are based on specific binding between the hormone and its receptor. The receptor acts as a target for the hormone, triggering a series of cellular responses once bound. This interaction is highly specific, allowing for precise signaling within the body.
Which substances are found on cell surfaces and respond to nerve and hormone signals?
Receptors, such as neurotransmitter receptors and hormone receptors, are found on cell surfaces. These receptors bind to specific signaling molecules like neurotransmitters and hormones, allowing cells to respond to these signals and initiate a biological response.
Do viruses require specific receptors to infect cells?
Yes, all viruses need to bind to specific receptor molecules on the surface of target cells to initiate infection. Virus-receptor binding is highly specific, and this specificity determines both the species and the cell type that can be infected by a given virus.In some well-studied cases, the virus-binding region on the receptor has been found to be unrelated to the receptor's normal cellular function.
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.
How do hormones establish selectivity?
Hormones are ligands that bond to cells and carry a specific receptor. The ligand bonds its receptor to form a complex that acquires a purpose. The ligand triggers a change in the receptor, which activates a potential biological function. Cells that do not exhibit the receptor never receive the signal.
Signal molecules bind to?
specific receptor proteins on the surface of target cells, triggering a cellular response. This binding initiates a signaling cascade that ultimately leads to changes in the cell's behavior or function. The specificity of the interaction between the signal molecule and its receptor ensures that only the appropriate cells respond to the signal.
Why do lipid soluble signaling molecules like testosterone cross membranes of all cells but effect only target cells?
Lipid-soluble signaling molecules like testosterone can easily cross cell membranes due to their hydrophobic nature. However, they only affect target cells because these cells express specific receptors for these molecules. Once inside the target cell, the hormone binds to its specific receptor and triggers a cellular response. Other cells without the specific receptors do not respond to the hormone.
Can Chemical transmitters stimulate any receptor site to initiate an action?
No, chemical transmitters can only stimulate specific receptor sites that they are designed to bind to. Each transmitter has a specific shape that fits into a corresponding receptor site like a lock and key, triggering a specific response in the target cell. This specificity is essential for precise communication between cells in the body.
