MHT CET · BIOLOGY · STD 12 - 13. Organisms and Populations
Given below are two statements.
Statement I - During respiration the respiratory substrate directly unite with oxygen.
Statement II - The primary process of respiration consists of removal of hydrogen from the respiratory substrate.
In the light of above statements, Select the correct option given below:
- A Both statement I and statement II are correct.
- B Both statement I and statement II are incorrect.
- C Statement I is correct but statement II is incorrect.
- D Statement I is incorrect but statement II is correct.
Answer & Solution
Correct Answer
(D) Statement I is incorrect but statement II is correct.
Step-by-step Solution
Detailed explanation
During respiration the respiratory substrate undergoes a series of enzyme-controlled steps glycolysis, Krebs cycle, and finally, the electron transport system (ETS). Oxygen is involved only at the last step (ETS), where it acts as the final electron acceptor, combining with electrons and protons to form water.
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