NCERT Solutions for Class 9 Science Chapter 5
The Fundamental Unit of Life
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Intext Questions
Page No-65
Questions No-2
If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen?
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If the organization of a cell is disrupted due to physical or chemical influences, several outcomes can occur:
1. Loss of Function:
– Organelles’ damage can impair their functions, impacting essential cellular processes such as energy production or protein synthesis.
2. Cell Death:
– Severe damage might lead to programmed cell death (apoptosis) as a defense mechanism or uncontrolled cell death (necrosis), causing inflammation and tissue damage.
3. Cellular Dysfunction:
– Disorganization can hinder the cell’s ability to carry out its regular functions, affecting metabolism, signaling pathways, and other critical processes.
4. Homeostasis Disruption:
– Disturbances to the cell’s internal environment can disrupt balance, altering pH levels, ion concentrations, or other vital conditions.
5. Genetic Damage:
– Some influences can cause DNA mutations, impacting gene expression or protein functionality.
6. Cellular Stress Response:
– Cells might activate stress responses to repair damage but could fail if the damage is extensive.
7. Impact on Surrounding Cells/Tissues:
– Damage to one cell can affect nearby cells or tissues, potentially causing a chain reaction of dysfunction or damage.
In summary, disruptions to a cell’s organization due to physical or chemical influences can lead to functional impairment, cell death, genetic damage, or disturbances in the cellular environment. The severity depends on the extent and nature of the damage inflicted on the cell.
Cell is the smallest unit of life, which is capable of all living functions. If the organisation of a cell is destroyed due to some physical or chemical influence, then the ability of the cell to perform all living functions such as respiration, nutrition, excretion, etc. would be affected.
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