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What is the purpose of the chemical signal that is sent out by dying cells?
The purpose of chemical signals released by dying cells is to alert neighboring cells to the presence of damage or stress. This helps coordinate responses such as inflammation, repair, or removal of the damaged cells by the immune system.
What are three different ways that a cell can respond to a signal?
Cells can respond to signals by changing gene expression to alter protein production, triggering changes in cell metabolism or differentiation, or by promoting cell division or death. These responses enable cells to adapt and coordinate their activities in response to external signals.
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.
What cells release histamine during allergic responses?
Basophil
What are the structures that allow hormones to bind to their target cells?
Hormones bind to specific protein receptors on the surface or inside target cells. These receptors are typically found on the cell membrane or in the cytoplasm. Once the hormone binds to its receptor, it triggers a signaling cascade that leads to specific cellular responses.
What are the similarities between specific and non specific immune responses?
Both involve white blood cells Both responses have means of killing invading cells like bacteria or parasites
Hormones are essential to maintaining homeostasis mainly because?
they cause specific responses in specific cells.
What White Blood Cells are never phagocytic?
Lymphocytes, including B cells and T cells, are white blood cells that are never phagocytic. Instead, they carry out functions related to adaptive immune responses, such as producing antibodies or coordinating immune responses against specific pathogens.
What is the difference between Target cells and non-target cells?
Target cells are cells that have specific receptors for a hormone or external signal, allowing them to respond to the signal. Non-target cells do not have receptors for the hormone or signal, so they do not respond to it. Target cells are the primary sites of action for hormones, while non-target cells are unaffected by the hormone.
What accounts for the fact that cells in different tissues and organisims have different functions and respond differently to their environments?
Cells in different tissues and organisms have different functions and respond differently to their environments because they are expressing different genes. Different cells can have very different physical characteristics.
What cells are involved in specific defense?
Cells involved in specific defense include B and T lymphocytes. B cells produce antibodies that can recognize specific pathogens, while T cells can directly kill infected cells or coordinate immune responses. These cells are crucial for mounting a targeted and effective immune response against pathogens.
How can the same signal have different effects in different Cells?
The Specificity of Cell Signaling and Coordination of the Response The explanation for the specificity exhibited in cellular responses to signals: different kinds of cells have different collections of proteins. (This is because different kinds of cells turn on different sets of genes). The response of a particular cell depends on its particular collection of signal receptor proteins, relay proteins, and proteins needed to carry out the response. Two cells that respond differently to the same signal differ in one or more of the proteins that handle and respond to the signal. Although cells A, B and C all have the same receptor protein, differences in other proteins account for their differences in responses.
What has the author Peter Jonathan McAlea Ceponis written?
Peter Jonathan McAlea Ceponis has written: 'Cytokine signal transduction responses in epithelial cells to gastrointestinal bacterial pathogens'
What is the purpose of the chemical signal that is sent out by dying cells?
The purpose of chemical signals released by dying cells is to alert neighboring cells to the presence of damage or stress. This helps coordinate responses such as inflammation, repair, or removal of the damaged cells by the immune system.
What is a product of living cells that circulates in blood and produces a specific stimulatory?
Hormones are the products of living cells that circulate in the blood and produce specific stimulatory responses in target cells or tissues. These chemical messengers play a crucial role in regulating various physiological processes in the body.
How can a cell culture be used to biologists?
Cell cultures can be used to test cell responses under controlled conditions, to study interactions between cells, and to select specific cells for further study.
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.
