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Which of the following is incorrect regarding receptors?
- a)They have constant shape
- b)They are proteins
- c)The shape of receptors binding site changes to fit the messenger
- d)They are present in the cell membrane
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Which of the following is incorrect regarding receptors?a)They have co...
Receptors
Receptors are specialized proteins that are present on the surface of cells or inside the cells. They play a key role in cellular communication and signal transduction.
Shape of Receptor Binding Site
The binding site of the receptor is the specific location where the messenger molecule or ligand binds to the receptor. The shape of the receptor binding site is not constant, but rather it changes to fit the shape of the messenger molecule. This allows the receptor to selectively bind to specific messenger molecules.
Presence of Receptors
Receptors are present in the cell membrane and also inside the cells. The receptors present in the cell membrane are called cell surface receptors, and they are involved in receiving signals from the extracellular environment. The receptors present inside the cells are called intracellular receptors, and they are involved in receiving signals from within the cell.
Protein Nature of Receptors
Receptors are proteins that are made up of amino acids. The amino acid sequence determines the overall shape of the receptor, including the shape of the binding site.
Incorrect Option
Option A, which states that receptors have a constant shape, is incorrect. The shape of the receptor binding site changes to fit the shape of the messenger molecule, allowing for selective binding.
Receptors are specialized proteins that are present on the surface of cells or inside the cells. They play a key role in cellular communication and signal transduction.
Shape of Receptor Binding Site
The binding site of the receptor is the specific location where the messenger molecule or ligand binds to the receptor. The shape of the receptor binding site is not constant, but rather it changes to fit the shape of the messenger molecule. This allows the receptor to selectively bind to specific messenger molecules.
Presence of Receptors
Receptors are present in the cell membrane and also inside the cells. The receptors present in the cell membrane are called cell surface receptors, and they are involved in receiving signals from the extracellular environment. The receptors present inside the cells are called intracellular receptors, and they are involved in receiving signals from within the cell.
Protein Nature of Receptors
Receptors are proteins that are made up of amino acids. The amino acid sequence determines the overall shape of the receptor, including the shape of the binding site.
Incorrect Option
Option A, which states that receptors have a constant shape, is incorrect. The shape of the receptor binding site changes to fit the shape of the messenger molecule, allowing for selective binding.
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Community Answer
Which of the following is incorrect regarding receptors?a)They have co...
Receptors are specialized proteins that are present in the cell membrane or inside the cell. They play a crucial role in cell signaling by binding to specific molecules called messengers or ligands. The binding of a messenger to a receptor leads to a series of downstream events that result in a specific cellular response.
Constant Shape of Receptors is Incorrect
The statement "They have constant shape" is incorrect regarding receptors. Receptors are not rigid structures with a fixed shape. Instead, they have a dynamic conformation that can change in response to the binding of a messenger. The binding of a messenger to a receptor induces conformational changes in the receptor protein, which can alter the shape of the receptor's binding site. This change in shape allows the receptor to selectively bind to specific messengers and initiate downstream signaling pathways.
Characteristics of Receptors
- Receptors are proteins: Receptors are a type of protein that is specialized for binding to specific messengers or ligands.
- Shape of Receptors binding site changes to fit the messenger: The binding site of a receptor is specific to the messenger it binds to. The shape of the receptor's binding site changes to fit the messenger, allowing for selective binding.
- Receptors are present in the cell membrane: Many receptors are present in the cell membrane, where they can interact with extracellular messengers. However, some receptors are present inside the cell and can bind to intracellular messengers.
- Receptors are involved in cell signaling: Receptors play a crucial role in cell signaling by initiating downstream signaling pathways in response to messenger binding.
Conclusion
In summary, receptors are specialized proteins that play a crucial role in cell signaling by binding to specific messengers or ligands. The shape of the receptor's binding site changes to fit the messenger, allowing for selective binding. The statement "They have constant shape" is incorrect regarding receptors as they have a dynamic conformation that can change in response to messenger binding.
Constant Shape of Receptors is Incorrect
The statement "They have constant shape" is incorrect regarding receptors. Receptors are not rigid structures with a fixed shape. Instead, they have a dynamic conformation that can change in response to the binding of a messenger. The binding of a messenger to a receptor induces conformational changes in the receptor protein, which can alter the shape of the receptor's binding site. This change in shape allows the receptor to selectively bind to specific messengers and initiate downstream signaling pathways.
Characteristics of Receptors
- Receptors are proteins: Receptors are a type of protein that is specialized for binding to specific messengers or ligands.
- Shape of Receptors binding site changes to fit the messenger: The binding site of a receptor is specific to the messenger it binds to. The shape of the receptor's binding site changes to fit the messenger, allowing for selective binding.
- Receptors are present in the cell membrane: Many receptors are present in the cell membrane, where they can interact with extracellular messengers. However, some receptors are present inside the cell and can bind to intracellular messengers.
- Receptors are involved in cell signaling: Receptors play a crucial role in cell signaling by initiating downstream signaling pathways in response to messenger binding.
Conclusion
In summary, receptors are specialized proteins that play a crucial role in cell signaling by binding to specific messengers or ligands. The shape of the receptor's binding site changes to fit the messenger, allowing for selective binding. The statement "They have constant shape" is incorrect regarding receptors as they have a dynamic conformation that can change in response to messenger binding.
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Which of the following is incorrect regarding receptors?a)They have constant shapeb)They are proteinsc)The shape of receptors binding site changes to fit the messengerd)They are present in the cell membraneCorrect answer is option 'A'. Can you explain this answer?
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