During necrosis, specialized lytic enzymes are liberated from __________ ?
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Answer: A. lysosomes
Explanation
During necrosis, damaged cells rupture and release specialized lytic enzymes from lysosomes. These powerful hydrolytic enzymes digest cellular components indiscriminately, causing localized tissue damage. Uncontrolled lysosomal enzyme release distinguishes pathological necrosis from programmed cell death. Lysosomes are membrane-bound organelles containing acidic digestive enzymes that break down waste. Necrosis is premature cell death caused by external injury, toxins, or severe oxygen deprivation. Inflammation typically accompanies necrotic cell death as surrounding tissues react to debris.
Medical pathologists examine tissue necrosis in biopsies to diagnose heart attacks and organ infarctions. Ischemia restricts blood flow, leading to cellular starvation and eventual necrotic tissue breakdown. Treatments for severe frostburn aim to minimize progressive tissue necrosis in damaged extremities. Vacuoles store water and nutrients in plant and fungal cells rather than releasing lytic enzymes. Cytoplasm is the internal fluid matrix containing organelles rather than the source of lytic enzymes. Golgi bodies modify and package proteins for secretion rather than storing destructive digestive enzymes.
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