`C_6H_12O_6 + 6O_2 overset"enzyme"to 6CO_2 + 6H_2O` + 686 kcal represent

Options

A. Aerobic respiration
B. Photosynthesis
C. Anaerobic respiration
D. Fermentation

Answer

To solve the question regarding the reaction represented by the equation:

\[ C_6H_{12}O_6 + 6O_2 \overset{\text{enzyme}}{\rightarrow} 6CO_2 + 6H_2O + 686 \text{ kcal} \]

we can break it down step by step:

### Step 1: Identify the Reactants
The reactants in this equation are glucose (\(C_6H_{12}O_6\)) and oxygen (\(O_2\)).

### Step 2: Identify the Products
The products of this reaction are carbon dioxide (\(CO_2\)), water (\(H_2O\)), and energy (686 kcal).

### Step 3: Understand the Process
This reaction describes the process of glucose being oxidized in the presence of oxygen. This process is facilitated by enzymes.

### Step 4: Determine the Type of Respiration
Since the reaction involves the complete oxidation of glucose in the presence of oxygen, it is classified as **aerobic respiration**.

### Step 5: Conclusion
The overall reaction indicates that aerobic respiration occurs, resulting in the release of carbon dioxide, water, and a significant amount of energy (686 kcal).

Thus, the correct answer to the question is **aerobic respiration**.

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