Question

Place the events related to eukaryotic cellular respiration into the boxes corresponding to each location in the cell Production of most ATP occurs here Pyruvate is oxidized to acetyl CoA Glycolysis Initial splitting of glucose Electron transport chain Krebs cycle Cytoplasm Mitochondrial matrix Mitochondrial inner membrane

Answer 1

1. Cytoplasm :-
• Glycolysis.
• Initial splitting of glucose.

• Glycolysis is the process for initial splitting of glucose. In this process glucose break down into two molecules of pyruvate.
• After this step, pyruvate enters into mitochondria and further steps of respiration occur there.

2. Mitochondrial matrix :-
• Pyruvate is oxidized to acetyl CoA.
• Krebs cycle.

• Pyruvate oxidation occrs in mitochondrial matrix and by this process pyruvate converted into acetyl Coenzyme A.
• This acetyl CoA enters in krebs cycle and produce large amount of NADH and FADH2.

3. Mitochondrial inner membrane :-
• Electron transport chain.
• Production of most ATP occurs here.

• NADH and FADH2 produced in prior steps of respiration go through oxidative phosphorylation in electron transport chain (ETS) and converted into ATPs.
• Complexes of ETS are situated at inner mitochondrial membrane.