১.
In apoptosis
- কক) Cellular swelling
- খখ) Disrupted plasma membrane
- গগ) Intact cellular content
- ঘঘ) Invariably pathological
PrepBank · বিষয়ভিত্তিক প্রশ্ন
Apoptosis
Apoptosis
PrepBank · পাতা ১ / ১ · ১–৭ / ৭
১.
In apoptosis
২.
Pathway of cell death that is induced by a tightly regulated suicide program -
ব্যাখ্যা
[Robbins 9th 52]
৩.
Characteristics of apoptosis excludes
৪.
Cause of physiologic apoptosis -
ব্যাখ্যা
Explanation :
The removal of supernumerary cells (in excess of the required number) during development.
• Involution of hormone-dependent tissues on hormone withdrawal, such as endometrial cell breakdown during the menstrual cycle, ovarian follicular atresia in menopause, and regression of the lactating breast after weaning.
• Cell turnover in proliferating cell populations, such as immature lymphocytes in the bone marrow and thymus, B lymphocytes in germinal centers that fail to express useful antigen receptors and epithelial cells in intestinal crypts, to maintain a constant cell number (homeostasis).
• Elimination of potentially harmful self-reactive lymphocytes to prevent immune reactions against one’s own tissues.
• Death of host cells that have served their useful purpose, such as neutrophils in an acute inflammatory response, and lymphocytes at the end of an immune response.
The removal of supernumerary cells (in excess of the required number) during development.
• Involution of hormone-dependent tissues on hormone withdrawal, such as endometrial cell breakdown during the menstrual cycle, ovarian follicular atresia in menopause, and regression of the lactating breast after weaning.
• Cell turnover in proliferating cell populations, such as immature lymphocytes in the bone marrow and thymus, B lymphocytes in germinal centers that fail to express useful antigen receptors and epithelial cells in intestinal crypts, to maintain a constant cell number (homeostasis).
• Elimination of potentially harmful self-reactive lymphocytes to prevent immune reactions against one’s own tissues.
• Death of host cells that have served their useful purpose, such as neutrophils in an acute inflammatory response, and lymphocytes at the end of an immune response.
৫.
Apoptosis is
ব্যাখ্যা
Apoptosis is Programmed cell death
৬.
Most characteristic feature of apoptosis is
ব্যাখ্যা
Most characteristic feature of apoptosis is chromatin condensation
৭.
Morphologic feature of apoptosis -
ব্যাখ্যা
Explanation :
Morphology of apoptotic cell -
Cell shrinkage
Chromatin condensation
Formation of cytoplasmic blebs and apoptotic body
Phagocytosis
Morphology of apoptotic cell -
Cell shrinkage
Chromatin condensation
Formation of cytoplasmic blebs and apoptotic body
Phagocytosis