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An allosteric receptor embedded in a cell membrane will change shape only?
Wiki User
∙ 15y ago
when a signal molecule fits the shape of the receptor
Wiki User
∙ 15y ago
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What blocks enzyme activity by binding to allosteric site of an enzyme causing the enzyme's active site to change shape?
An allosteric inhibitor stops enzyme activity by binding to an allosteric site and causing the conformation of the enzyme to change.
When a signal molecule such as a growth hormone binds to a receptor protein in the plasma membrane it stays on the outside of the cell. How might the inside of the cell know that the signal has bound?
Due to a conformational change of the receptor protein....
How does a receptor in the membrane transmit a message to the cell?
Receptors detect a signal molecule and perform an action in response.
True or False 'A change in the primary sequence of a protein can affect allosteric regulation'?
true
When a signal molecule binds to a receptor protein the receptor protein may change the?
shape.
How does a receptor in the cell membrane transmit a message to the cell?
The receptor induces changes in the metabolism and activity of a cell. In the process of signal transduction, ligand binding affects a cascading chemical change through the cell membrane.
How allosteric enzymes differ non allosteric?
Allosteric enzymes have the ability to change their conformational ensemble after binding. This changes their affinity at a different ligand binding site.
What blocks enzyme activity by binding to allosteric site of an enzyme causing the enzyme's active site to change shape?
An allosteric inhibitor stops enzyme activity by binding to an allosteric site and causing the conformation of the enzyme to change.
When a signal molecule such as a growth hormone binds to a receptor protein in the plasma membrane it stays on the outside of the cell. How might the inside of the cell know that the signal has bound?
Due to a conformational change of the receptor protein....
What is a molecule that is generated when a specific substance attaches to a receptor on the outside of a cell membrane which produces a change in cellular function?
Second messengerSecond Messenger
Binding of a signaling molecule to which type of receptor leads directly to a change in the distribution of ions on opposite sides of the membrane?
Ligand-gated ion channel
Binding of a signaling molecule to which type of receptor leads directly to a change in distribution of ions on opposite sides of the membrane?
ligand gated ion channel
Does the allosteric effect in an enzyme change the enzyme's function?
allosteric effectors have their own specific sites for binding to enzyme. they can bring positiveor negative effect. that depends on the natre of effector.
How does a receptor in the membrane transmit a message to the cell?
Receptors detect a signal molecule and perform an action in response.
True or False 'A change in the primary sequence of a protein can affect allosteric regulation'?
true
What helps the cell hold its shape if it does not have a cell wall?
The cell has a lipid bilayer with embedded proteins that gives it shape. The cell membrane is rather fluid but also slightly rigid. This allows the cell to change shape but it cannot change shape very much. The membrane can seal itself if pierced by something very thin like a pin.The cell membrane holds it together as it's made of phospholipids.
What happens during allosteric inhibition?
Allosteric (noncompetitive) inhibition results from a change in the shape of the active site when an inhibitor binds to an allosteric site. When this occurs the substrate cannot bind to its active site due to the fact that the active site has changed shape and the substrate no longer fits. Allosteric activation results when the binding of an activator molecule to an allosteric site causes a change in the active site that makes it capable of binding substrate.
