NTA Abhyas NEET2020BotanyRespiration in PlantsPractice
(i) Label A, B, C and D (ii) How many CO 2 evolve between A and malic acid? Choose the correct option from the following regarding answers of the above questions.
Options
- A(i) A = PGA, B = CO 2 , C = PGAL, D = ATP (ii) 3CO 2
- B(i) A = Citric acid, B =CO 2 , C = Succinic acid, D = FADH 2 (ii) 2CO 2
- C(i) A = Citric acid, B = FADH 2 , C = Succinic acid, D = NADH + H + (ii) CO 2
- D(i) A = pyruvic acid, B = FADH 2 , C = Succinyl CoA, D = GTP. (ii) 4CO 2
Correct answer
C. (i) A = Citric acid, B = FADH 2 , C = Succinic acid, D = NADH + H + (ii) CO 2
Step-by-step solution
The tricarboxylic acid cycle (TCA cycle) is a series of enzyme-catalyzed chemical reactions that forms a key part of aerobic respiration in cells. This cycle is also called the Kreb's cycle or citric acid cycle. The greatly simplified cycle below starts with pyruvate, which is the end product of glycolysis, the first step of all types of cell respiration. Here A = citric acid, B = FADH 2 , C = succinic acid, D = NADH + H + (ii) 2CO 2