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A receptor molecule is a molecule that receives information from outside the cell. They are embedded in either the plasma membrane or cytoplasm of a cell. A specific molecule on the surface or inside of a cell with a characteristic chemical and physical structure. Many neurotransmitters and hormones exert their effects by binding to receptors on cells.
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What binds to a signal molecule enabling the cell to respond to the signal molecule?
receptor proteins bind to signal molecules
When a signal molecule binds to a receptor protein the receptor protein may change the?
shape.
An allosteric receptor embedded in a cell membrane will change shape only?
when a signal molecule fits the shape of the receptor
Why is it important that each receptor protein binds to only one signal molecule?
because every receptor has specific shape on it, which binds with specific molecule.
What is a molecule such as a neurotransmitter or a hormone that binds to a receptor called?
what are the characteristics of action potentials
What is the molecule called that can bind to a receptor protein?
The molecule that can bind to a receptor protein is called a ligand.
What binds to a signal molecule enabling the cell to respond to the signal molecule?
receptor proteins bind to signal molecules
What is a molecule that acts as signal when it binds to a receptor?
Intracellular receptor
When a signal molecule binds to a receptor protein the receptor protein may change the?
shape.
What is the job of a receptor?
The job of a receptor protein is to receive chemical signals from outside the cell.
What is the job of the receptor proteins?
The job of a receptor protein is to receive chemical signals from outside the cell.
What enables a cell to pick up and concentrate a specific kind of molecule?
Receptor-mediated endocytosis: only a specific molecule, called a ligand, can bind to the receptor. Without receptor binding occurring first, endocytosis does not proceed.
What is a channel linked receptor?
A channel linked receptor transduces functions of the same protein molecule. An example of a channel linked receptor are neurotransmitters in the brain.
An allosteric receptor embedded in a cell membrane will change shape only?
when a signal molecule fits the shape of the receptor
An enzyme and a membrane receptor molecule are similar?
acts as catalysts
Why is it important that each receptor protein binds to only one signal molecule?
because every receptor has specific shape on it, which binds with specific molecule.
Is CD4 an adhesion molecule?
The glycoprotein CD4 is a co-receptor. A co-receptor is "a cell surface receptor, which, when bound to its respective ligand, modulates antigen receptor binding or affects cellular activation after antigen-receptor interactions." (MediLexicon)
