PATHOLOGY MCQ
CELL DAMAGE
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 Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
 
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  allow proper form of developing embryos 
 
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  remove cells that are damaged or diseased 
 
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  reduce cell number 
 
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  all of these 
 
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Detailed explanation-1: -Apoptosis is the process of programmed cell death. It is used during early development to eliminate unwanted cells; for example, those between the fingers of a developing hand. In adults, apoptosis is used to rid the body of cells that have been damaged beyond repair. Apoptosis also plays a role in preventing cancer.
Detailed explanation-2: -Apoptosis is an active process characterized by cell shrinkage, nuclear and cytoplasmic condensation, chromatin fragmentation, and phagocytosis of the apoptotic cell.
Detailed explanation-3: -Apoptosis is characterised by a series of typical morphological features, such as shrinkage of the cell, fragmentation into membrane-bound apoptotic bodies and rapid phagocytosis by neighbouring cells.
Detailed explanation-4: -There are 4 stages of apoptosis: the initiation or stimulus for cell death, the active programmed cell death when the events become irreversible, phagocytosis of the dead cellular material, and inhibitory mechanisms of apoptosis.
Detailed explanation-5: -Cell shrinks. Cell fragments. Cytoskeleton collapses. Nuclear envelope disassembles. Cells release apoptotic bodies. 28-Apr-2013