Question

Consider the following and choose the correct answer Assertion [A]: Aerobic respiration is more efficient than anaerobic respiration. Reason [R]: Oxygen allows complete oxidation of glucose. The correct answer is

• A. Both [A] and [R] are true and [R] is the correct explanation of [A]
• B. Both [A] and [R] are true and [R] is not correct explanation of [A]
• C. [A] is true, but [R] is false
• D. [A] is false, but [R] is true

Hint:

Aerobic respiration is more efficient because \[ \boxed{ \text{Oxygen enables complete oxidation of glucose.} } \] Complete oxidation produces the maximum ATP.

Answer 1

The Correct Option is A

Step 1: Examine the assertion. Aerobic respiration produces much more ATP than anaerobic respiration. Therefore, \[ \boxed{\text{Assertion [A] is true}.} \]

Step 2: Examine the reason. In aerobic respiration, oxygen acts as the final electron acceptor, allowing complete oxidation of glucose into carbon dioxide and water. Hence, \[ \boxed{\text{Reason [R] is true}.} \]

Step 3: Establish the relationship. Complete oxidation of glucose releases maximum energy, which explains why aerobic respiration is more efficient. Thus, \[ \boxed{ \text{Both [A] and [R] are true and [R] correctly explains [A].} } \] Therefore, \[ \boxed{(A)} \] is the correct answer.