ISRO 2024
Applied Physiology
Easy
Which of the following organelles is called the "suicidal bag"?
Appeared in: ISRO 2024
Explanation
- Lysosomes are cellular organelles that contain powerful digestive (hydrolytic) enzymes.
- They are known as 'suicidal bags' because if the lysosomal membrane ruptures, these enzymes are released into the cell's cytoplasm.
- This release triggers autolysis, a process where the enzymes digest the cell's own components, leading to cell death.
Why Other Options Were Wrong
- Option A: This is incorrect. Mitochondria are known as the 'powerhouse' of the cell, not the 'suicidal bag'.
- Option B: This is incorrect. The Endoplasmic Reticulum is a network involved in protein and lipid synthesis and transport.
- Option D: This is incorrect. Ribosomes are known as the 'protein factories' of the cell.
Related Visual
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Functions and nicknames of cellular organelles as background academic context rather than a clinical decision trigger.
- Understanding lysosomal function is critical for diagnosing and managing lysosomal storage diseases like Tay-Sachs or Gaucher disease, where enzyme deficiencies cause harmful accumulations within cells.
- What if? If a cell is infected with a virus, the cell can intentionally trigger lysosomal rupture (a part of apoptosis or programmed cell death) as a defense mechanism to destroy itself and prevent the virus from replicating and spreading to other cells.
How to Approach the Question
- This is a factual recall question testing knowledge of basic cell biology.
- The key phrase is 'suicidal bag.' This is a specific nickname tied to the function of one organelle.
- Mentally review the common nicknames for the organelles listed in the options.
- Mitochondria is the 'powerhouse'.
- Ribosome is the 'protein factory'.
- Endoplasmic Reticulum is the 'transport network'.
Concept Tested & Keywords
- Concept Tested: Functions and nicknames of cellular organelles
- Stem keywords: organelles, suicidal bag
- Lead-in keywords: Which
- Negative lead-in flag: false
Question ID
QA3TBPiPapEQulZj6LtY7M
Reference Book
E6 Physiology Essentials Sembulingam 10e Part 1 p. 31-33
E6 Anatomy Applied Ashalatha 4e p. 59-61
Practise the full ISRO 2024
Attempt every question from this paper in a timed mock, then review the full solution for each one.
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