Respiration in Plants

Assertion : Respiratory pathway is considered as an amphibolic pathway. Reason : Respiratory pathway involves both anabolism and catabolism.

Assertion : Respiration involving proteins as respiratory substrate is called floating respiration. Reason : Respiration involving carbohydrates and fats as respiratory substrate is called protoplasmic respiration.

Mercury $(\mathrm{Hg})$ is generally used in anaerobic respiration experiments because it does not react with

ATP formation occurs through which of the following processes?

Mitochondria are absent in mature mammalian RBCs. What is the source of energy for these cells then?

Assertion : Respiratory pathway is an amphibolic pathway. Reason : In respiration, there is breakdown of many substances (catabolism) and synthesis of many substances (anabolism) by respiratory intermediates.

Assertion : Fermentation is incomplete oxidation of glucose. Reason: In fermentation, glucose may be converted to $\mathrm{CO}_2$ and ethanol.

Out of 38 molecules of ATP produced by aerobic respiration of glucose, the break up of ATP production in glycolysis (P), pyruvate to acetyl-CoA formation (Q) and Krebs' cycle (R) is as follows :

Assertion : Conversion of 1,3 biphosphoglycerate (BPGA) to 3-phospho-glyceric acid (PGA) is an energy yielding step. Reason : This energy is trapped in the form of ATP.

Assertion: Glucose is the favoured respiratory substrate. Reason : When glucose is used as respiratory substrate it is completely oxidised and RQ is 1 .

Which enzyme helps in transfer of phosphate group from ATP to a carbohydrate?

Assertion : Glucose is the favoured respiratory substrate. Reason: When glucose is used as respiratory substrate and is completely oxidized, the RQ is 1 .