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Many hormones induce changes in cells by first binding to plasma membrane?
Yes, many hormones bind to specific receptors on the plasma membrane of target cells, triggering a signaling cascade that ultimately leads to cellular responses. This binding initiates a series of molecular events that can activate or inhibit various cellular processes, such as gene expression, protein synthesis, or ion flux, depending on the hormone and the cell type.
Which type of membrane protein attaches to specific hormones such as insulin?
The type of membrane protein that attaches to specific hormones such as insulin is a receptor protein. Receptor proteins are specialized proteins located on the cell membrane that recognize and bind to specific molecules such as hormones, triggering a cellular response. In the case of insulin, its receptor protein on the cell membrane binds to insulin, leading to cellular uptake of glucose and other metabolic responses.
What hormones work by direct gene activation?
Steroid hormones such as estrogen, testosterone, and cortisol work by direct gene activation. These hormones can diffuse across the cell membrane, bind to intracellular receptors, and regulate gene expression by binding to specific DNA sequences. This process leads to changes in protein synthesis and cellular function.
What do hormones bind to on the surface of target cells?
Hormones typically bind to specific protein receptors located on the surface of target cells. These receptors are responsible for initiating a signaling pathway within the cell in response to the hormone binding, leading to specific cellular responses.
Why does most amino acid based hormones bind to cell membrane receptors?
Most amino acid-based hormones are hydrophilic molecules that cannot pass through the cell membrane. Therefore, these hormones bind to specific cell membrane receptors to initiate a signaling cascade within the cell. This binding triggers a series of events that ultimately lead to changes in gene expression, protein synthesis, or other cellular responses.
Extracellular membrane receptors are used by which types of hormones?
Extracellular membrane receptors are used by peptide hormones and protein hormones, which cannot pass through the cell membrane due to their size or composition. These receptors are located on the cell surface and trigger a signaling cascade inside the cell upon hormone binding, leading to physiological responses.
Which hormone initiates biological action by crossing the plasma membrane and then binding to a receptors?
Steroid hormones such as estrogen, testosterone, and cortisol initiate biological actions by crossing the plasma membrane and binding to receptors inside the cell. This binding activates gene transcription and protein synthesis that lead to various cellular responses.
Many hormones induce changes in cells by first binding to plasma membrane?
Yes, many hormones bind to specific receptors on the plasma membrane of target cells, triggering a signaling cascade that ultimately leads to cellular responses. This binding initiates a series of molecular events that can activate or inhibit various cellular processes, such as gene expression, protein synthesis, or ion flux, depending on the hormone and the cell type.
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.
Which type of membrane protein attaches to specific hormones such as insulin?
The type of membrane protein that attaches to specific hormones such as insulin is a receptor protein. Receptor proteins are specialized proteins located on the cell membrane that recognize and bind to specific molecules such as hormones, triggering a cellular response. In the case of insulin, its receptor protein on the cell membrane binds to insulin, leading to cellular uptake of glucose and other metabolic responses.
What hormones work by direct gene activation?
Steroid hormones such as estrogen, testosterone, and cortisol work by direct gene activation. These hormones can diffuse across the cell membrane, bind to intracellular receptors, and regulate gene expression by binding to specific DNA sequences. This process leads to changes in protein synthesis and cellular function.
What do hormones bind to on the surface of target cells?
Hormones typically bind to specific protein receptors located on the surface of target cells. These receptors are responsible for initiating a signaling pathway within the cell in response to the hormone binding, leading to specific cellular responses.
Why does most amino acid based hormones bind to cell membrane receptors?
Most amino acid-based hormones are hydrophilic molecules that cannot pass through the cell membrane. Therefore, these hormones bind to specific cell membrane receptors to initiate a signaling cascade within the cell. This binding triggers a series of events that ultimately lead to changes in gene expression, protein synthesis, or other cellular responses.
What does a carrier protein do in the process of transporting molecules across a cell membrane?
A carrier protein helps transport molecules across a cell membrane by binding to specific molecules and changing shape to move them across the membrane.
What protein classes are not found as membrane proteins - identity markers or receptors or transport channels or enzymes or hormones?
Enzymes and hormones are protein classes that are not typically found as membrane proteins acting as identity markers, receptors, or transport channels. Enzymes catalyze chemical reactions inside cells, while hormones are signaling molecules released into the bloodstream to regulate various physiological processes.
What is the most responsible for the sequence of amino acids in a protein?
the tRNA binding anti codon sequence
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.
