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Quiz

The equation shows cellular respiration. During cellular respiration, glucose combines with oxygen to produce carbon dioxide, water, and ATP.
[tex]\[
C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + \text{ATP}
\][/tex]

What happens to the energy in the bonds of glucose?

A. The energy is transferred to oxygen.
B. The energy is transferred to carbon dioxide.
C. The energy is transferred to water.
D. The energy is transferred to ATP.



Answer :

To understand what happens to the energy in the bonds of glucose during cellular respiration, let’s examine the overall process. The equation given represents the chemical reaction of cellular respiration:

[tex]\[ C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + \text{ATP} \][/tex]

Here is a detailed step-by-step solution to what happens during the reaction:

1. Glucose Breakdown: During cellular respiration, glucose ([tex]\( C_6H_{12}O_6 \)[/tex]) is oxidized.
2. Oxygen’s Role: Oxygen ([tex]\( O_2 \)[/tex]) is used as the electron acceptor in this reaction, and it combines with electrons and protons to form water ([tex]\( H_2O \)[/tex]).
3. Production of Carbon Dioxide and Water: The carbon atoms from glucose are released as carbon dioxide ([tex]\( CO_2 \)[/tex]), and the hydrogen atoms combine with oxygen to form water ([tex]\( H_2O \)[/tex]).
4. Energy Conversion: The energy stored in the bonds of glucose is released during these reactions.
5. Energy Transfer: The released energy is captured in the form of adenosine triphosphate (ATP), which cells use for various functions. Glucose’s energy is transferred into the high-energy phosphate bonds of ATP.

In summary, during cellular respiration, the original energy from the bonds in glucose is preserved and changed into a form the cell can use, i.e., ATP.

Thus, the correct answer to the question "What happens to the energy in the bonds in glucose?" is:
- The energy is transferred to ATP.

Therefore, the correct answer is option 4:
The energy is transferred to ATP.