ANIMAL PHYSIOLOGY
CHEMICAL SIGNALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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apoptosis
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gated ligand channel
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cell communication
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G-protein reception
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Detailed explanation-1: -A type of cell death in which a series of molecular steps in a cell lead to its death. This is one method the body uses to get rid of unneeded or abnormal cells. The process of programmed cell death may be blocked in cancer cells. Also called apoptosis.
Detailed explanation-2: -CED-9 is said to protect cells from the apoptosis pathway. Under normal conditions, in a cell not experiencing apoptotic signalling, CED-9 forms a complex with CED-4 at the membrane of the mitochondria. This interaction sequesters the pro-apoptotic signalling of CED-4.
Detailed explanation-3: -Also called programmed cell death.
Detailed explanation-4: -Two major signaling pathways trigger apoptotic cell death: the mitochondrial (the intrinsic) pathway and the death receptor (the extrinsic) pathway. The latter involves a classical ligand–cell-surface-receptor interaction.