Question

Choose the correct answers from the alternatives given .
Which of the following metabolic processes can occur without a net influx of energy from some other process ?

• A. ADP ${}^{+}$ P $\to$ ATP ${}^{+}$ H2O
• B. $C_6$$H_{12}$$O_6$ ${}^{+}$ $6O_2$ $\to$ $6C{O}_2$ ${}^{+}$ $6H_{2}O$
• C. $6C{O}_2$ ${}^{+}$ $6H_{2}O$ $\to$ $C_6$$H_{12}$$O_6$ ${}^{+}$ $6H_{2}O$
• D. $C{O}_2$ + $2H_{2}O$ $\to$ $C{H}_4$ ${}^{+}$ $2O_2$

Answer 1

The correct option is B $C_6$$H_{12}$$O_6$ ${}^{+}$ $6O_2$ $\to$ $6C{O}_2$ ${}^{+}$ $6H_{2}O$

C${}_6$H${}_1$${}_2$O$6$ + 6O$2$ $\to$ 6CO$2$ +6H$2$O in this process glucose breaks down to give its hydrogens to the oxygen, it really does not need a lot of energy to begin and to keep going. It simply needs a small spark and then it can keep going until its done.

So, the correct option is 'C${}_6$H${}_{12}$O${}_6$ + 6O${}_2$ $\to$ 6CO${}_2$ +6H${}_2$O'