The number of time(s) decarboxylation of isocitrate occurs during single TCA cycle is :

The complex II of mitochondrial electron transport chain is also known as

Identify the step in tricarboxylic acid cycle, which does not involve oxidation of substrate.

Match List I with List II \begin{array}{|l|l|c|l|}\hline & List I & & List II \\\hline A. & Citric acid cycle & I. & Cytoplasm \\\hline B. & Glycolysis & II. & Mitochondrial matrix \\\hline C. & Electron transport system & III. & Intermembrane space of mitochondria \\\hline D. & Proton gradient & IV. & Inner mitochondrial membrane \\\hline\end{array} Choose the correct answer from the options given below:

Match List-I with List-II : \begin{array}{llll} List-I & & List-II \\A. & ETS Complex I & I. & NADH Dehydrogenase \\B. & ETS Complex II & II. & Cytochrome bC { }_1 \\C. & ETS Complex III & III. & Cytochrome C oxidase \\D. & ETS Complex IV & IV. & Succinate Dehydrogenase\end{array} Choose the correct answer from the options given below :

Which of the following are correct about cellular respiration? A. Cellular respiration is the breaking of C - C bonds of complex organic molecules by oxidation. B. The entire cellular respiration takes place in Mitochondria. C. Fermentation takes place under anaerobic condition in germinating seeds. D. The fate of pyruvate formed during glycolysis depends on the type of organism also. E. Water is formed during respiration as a result of $\mathrm{O}_2$ accepting electrons and getting reduced. Choose the correct answer from the options below: