CBSE Class 10 Science 2019 Delhi Set 1

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Question : 4
Total: 28
Write two different ways in which glucose is oxidized to provide energy in human body. Write the products formed in each case.
Solution:  
Glucose is oxidised in two forms to provide energy to the body:
(i) C6H12O6
In
cytoplasm
Pyruvate
Presence
of Oxygen
CO2
+H2O
+
38ATP
energy
This is an example of Aerobic Respiration that happens in presence of oxygen.
(ii)
C6H12
Glucose
O6
In
cytoplasm
Pyruvate
Absemce
of oxygen
C2H5OH
Ethanol
+CO2
+
2ATP
energy
This is an example of Anaerobic Respiration.
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