Question

In: Biology

For each of the following items indicate "A" if it is a typical change occurring during...

For each of the following items indicate "A" if it is a typical change occurring during apoptosis or "N" if it is a typical change occurring during necrosis.

A N  Release of small cell fragments
A N  Involved in developmental regulation
A N  Release of soluble protein into extracellular
A N  Cell swelling
A N  Triggers inflammation

Solutions

Expert Solution

A - Release of small cell fragments (1)

A - Involved in developmental process (2)

N - Release of soluble protein into extracellular (3)

N - Cell swelling (4)

N - Triggers inflammation (5)

Contrasting features of Apoptosis Necrosis
Feature Apoptosis Necrosis
Definition Programme and coordinated cell death Cell death along with degradation of tissue by hydrolytic enzyme
Causativeagent Physiologically and pathological process (Developemental process) (2) Hypoxia, toxins
Morphology No inflammation seen Inflammatory reaction always present (5)
Death of single cell Death of many adjacent cells
Cell shrinkage Cell swelling (4)
Cytoplasmic blebs on membrane Membrane disruption
Apoptotic bodies form from cell fragmentation (1) Damaged organelles
Chromatin condensation Nuclear disruption
Phagocytosis of apoptotic bodies by macrophages Phagocytosis of cell debris by macrophages
Molecular changes Lysosomes and other organelles intact Lysosomal breakdown with liberation of hydrolytic enzyme (3)
Triggered by intrinsic pathway, extrinsic pathway and caspases cell death by ATP depletion, free radical injury

The points of the question have been mentioned in the chart to compare between two process.


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