Fill in the blanks and choose the correct option given below.

(i) Citric acid cycle takes place in part and E.T.S in part of mitochondria.

(ii) The metabolic pathway through which the electron passes form one carrier to another is called .

(iii) Complex-IV of E.T.S refers to cytochrome oxidase complex containing cytochromes and and copper centers.

(iv) ATP synthase is complex - of E.T.S.

(v) Oxidation of one molecule of NADH give rise to molecules of ATP, while that of one molecules of FADH 2 produces molecules of ATP.

(vi) acts as the final hydrogen acceptor in E.T.S.

(vii) For each ATP produced in E.T.S, passes through F 0 (part of complex V) from intermembrane space to the matrix th electrochemical gradient.

(viii) There can be a net gain of ATP molecules during aerobic respiration of one molecule of glucose.

(ix) The NADH synthesized in glycolysis is transferred into the mitochondria and undergoes phosphorylation.

(x) In fermentation there is a net gain of only molecules of ATP for each molecule of glucose degraded to pyruvic acid.

(xi) If fatty acids were used as substrate for respiration, they would first be degraded to and if glycerol, then would be converted to and then enter the pathway.

(xii) Respiratory pathway is an pathways as I involves both catabolism and anabolism.

(xiii) The ratio of the volume of CO 2 evolved to the volume of O 2 consumed in respiration is called . For carbohydrate, it is and for protein it is