What affects cellular respiration in plants?
1 Answer
Many factors affect cellular respiration in organisms:
Explanation:
1. TEMPERATURE:
-
Major limiting factor
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Optimum temperature-20-30 deg celsius
2. OXYGEN:
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In Aerobic
#rarr# produces more energy{38ATP} -
In Anaerobic
#rarr# produces less energy{2ATP}
3.
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If
#CO_2# concentration increases rate of respiration decreases in plants -
Increased concentration of
#CO_2# concentration{>1%} stimulate ABA release and thus stomata become closed and hence reduces oxygen availability.
4. LIGHT:
- Indirectly affect respiration
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Rate of respiration increase in light intensity
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In twilight
#rarr# morning and evening rate of photosynthesis and
respiration will be 1:1#rarr# If it occur due to light it is called
light compensation point in such time there is no exchange of gases between plants and atmosphere
5. Hormones :
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IAA
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Cytokinin
-
gibberlin
-
ethylene{Increases Climateric Respiration}
6. Injury disease and wounds
7. Respiratory Inhibitors:
cyanides, CO, Amytal, Azide, Dinitrophenol.