In eukaryotes these steps take place within the mitochondria and this requires O2. Aerobic respiration is the process that leads to a complete oxidation of organic substances in the presence of oxygen, and releases CO2, water and a large amount of energy present in the substrate. This type of respiration is most common in higher organisms. We will look at these processes in the next section.
Assertion (A): Aerobic respiration in eukaryotes requires oxygen for completion. Reason (R): In eukaryotes, the oxygen-requiring steps take place within the cytoplasm.
Correct answer: C — If assertion is true but reason is false.
NCERT confirms aerobic respiration requires oxygen (Assertion true). However, NCERT states “In eukaryotes these steps take place within the mitochondria and this requires O2.” The Reason falsely places oxygen-requiring steps in cytoplasm instead of mitochondria (false).
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