Q12 of 44 Page 79

Do you know any step in the TCA cycle where there is substrate level phosphorylation. Which one?

In the TCA cycle where there is substrate level phosphorylation the step in which succinyl Co-A is converted to the succinic acid and there is one GTP molecule is synthesised through the substrate level phosphorylation.


The GTP which is formed is used for making ATP.


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We commonly call ATP as the energy currency of the cell. Can you think of some other energy carriers present in a cell? Name any two.

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ATP produced during glycolysis is a result of substrate level phosphorylation. Explain.

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A process is occurring throughout the day, in ‘X’ organism. Cells are participating in this process. During this process ATP, CO2 and water are evolved. It is not a light dependent process.

a. Name the process.


b. Is it a catabolic or an anabolic process?


c. What could be the raw material of this process?


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When a substrate is being metabolized, why does not all the energy that released in one step. It is released in multiple steps. What is the advantage of step-wise release?