Question
GeneralGeneralGeneral

A person stops breathing but cells continue some activity for a short time. Explain.

Verified Answer

Even if breathing stops, cells can continue some activity for a short time because they use stored oxygen and switch temporarily to anaerobic respiration.

Key Factors

Factor Impact Explanation
Stored Oxygen Short support Oxygen already present in blood and tissues is used
Anaerobic Respiration Backup energy Cells produce small amount of ATP without oxygen
Low ATP Yield Limited activity Only basic functions continue
Lactic Acid Formation Side effect Accumulates due to anaerobic process

Stepwise Understanding

  1. Breathing stops, no fresh oxygen enters

  2. Cells use oxygen already available in body

  3. Once oxygen reduces, cells shift to anaerobic respiration

  4. Small amount of ATP is produced

  5. Cells maintain activity only for short duration

  6. After that, functions start failing

Important Concept

Cells can survive briefly without oxygen, but long term absence leads to cell damage and death.

Real Insight

Brain cells are most sensitive, they start getting damaged within few minutes without oxygen, which is why immediate action is critical in such cases.

So activity continues for a short time due to stored oxygen and temporary anaerobic energy production.