In: Biology

What process occurs in Box A?

The cellular respiration starts in the cytoplasm, where the glycolysis occurs(It is an oxygen-independent process, hence occurs in both aerobic and anaerobic respiration) then the end product of the glycolysis enters the mitochondrial matrix and mitochondrial inner membrane where the final process(Kreb cycle and Oxidative phosphorylation) takes place to generate a larger amount of energy.)

Glycolysis is a metabolic pathway where 1 molecule of glucose is converted into 2 molecules of pyruvate and the energy released in this is used to form ATP and NADH. It's a multistep multi enzymatic process taking place in the cytoplasm, which is common in both aerobic and anaerobic respiration. It consists of a series of 10 biochemical reactions leading to the formation of 2 molecules of Pyruvate with the release of 2 molecules of ATP and 2 molecules of NADH \(_{2}\)

It can be separated in two phases

- Energy requiring phase- where ATP is used.
- Energy releasing phase - where ATP is produced.
- Glucose \(+2 \mathrm{ADP}+2 \mathrm{ip}+2 \mathrm{NAD}^{+} \) -> 2 Pyruvate \(+2 \mathrm{ATP}+2 \mathrm{NADH}\)

So, Box A indicates The process of Glycolysis.

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