Test: Respiratory Balance Sheet, Amphibolic Pathway & Respiratory Quotient - NEET MCQ

The overall goal of glycolysis, Krebs cycle and electron transport system is the formation of ATP step-wise. The three processes are involved in cellular respiration of food to produce energy, which will be used for various cellular activities. 

The respiratory quotient (RQ) is used in calculations of basal metabolic rate (BMR). It is the ratio of the volume of carbon dioxide produced by the body to the volume of oxygen consumed by the body in respiration over a period of time. It depends on the type of respiratory substrate used during respiration. RQ of fat is about 0.7. RQ of carbohydrate is 1. RQ of organic acids is above 1. RQ of protein is 0.9. RQ value gives information about the source of energy an animal is using.
Thus, the correct answer is option A.

The electron transport chain along with oxidative phosphorylation involves the synthesis of energy-rich ATP molecules with the help of energy released during the oxidation of reduced coenzymes (NADH₂ and FADH₂) formed during glycolysis and the Krebs cycle. A total of 10 NADH₂ and 2 FADH₂ molecules are produced during aerobic respiration. They help in the formation of 32 ATP molecules.

Pyruvate formed during glycolysis is oxidized CO² and H²O in Krebs cycle or Citric acid cycle or Tricarboxylic acid cycle. Krebs cycle involves in the oxidation of acetyl CoA into CO² and H²O.

So the correct option is 'Citric acid cycle, Tricarboxylic acid and Krebs cycle'.

Ans: AGiven below are two statements:

- Assertion (A): Glycolysis occurs in the cytoplasm.
- Reason (R): Enzymes of glycolysis are found in the cytoplasm. It is common in aerobic/anaerobic respiration.

The correct answer is A:

- Glycolysis indeed occurs in the cytoplasm, which is supported by the fact that enzymes required for the glycolysis process are located in the cytoplasm.
- Glycolysis is the initial step in both aerobic and anaerobic respiration pathways, making it a common process in cellular energy production.