NEET Botany Respiration in Plants Class 11 Questions

The partial pressure of oxygen in systemic veins in a healthy man is

How many statements are not correct for transport of oxygen? (i) About 97 per cent of O₂ is transported by RBCs in the blood. (ii) Each haemoglobin molecule can carry a maximum of four molecules of O₂ (iii) Binding of oxygen with haemoglobin is primarily related to partial pressure of O₂. (iv) Partial pressure of CO₂, hydrogen ion concentration and temperature are the other factors which can interfere with this binding. (v) A sigmoid curve is obtained when percentage saturation of haemoglobin with O₂ is plotted against the PO₂ (vi) Every 100 of oxygenated blood can deliver around 5 ml of CO₂ to the lungs under normal physiological conditions.

Choose the incorrect statement regarding the enzyme carbonic anhydrase:

Read the following statements : (a) Respiratory rhythm centre is present in medulla region. (b) Chemosensitive area is highly sensitive to CO₂ and hydrogen ions. (c) The role of oxygen in the regulation of respiratory rhythm is quite significant. (d) Pneumotaxic centre is present in pons region. (e) Receptors associated with aortic arch and carotid artery can recognise changes in CO₂ and H⁺ concentration. How many statements are correct about regulation of respiration?

R.Q. of Fats will be

In aerobic respiration, the ultimate or final electron acceptor is :

Pyruvic acid, the key product of glycolysis can have many metabolic fates. Under aerobic condition it forms

Identify the wrong pair:

Which one of the following is the correct statement for respiration in humans?

What is the first product formed from glucose in the glycolytic pathway?

Which enzyme is responsible for phosphorylating glucose to form glucose-6-phosphate in glycolysis?

What is the respiratory quotient (RQ)?

Which type of fermentation involves the conversion of pyruvic acid to ethanol and carbon dioxide?

What is produced during alcoholic fermentation by yeast?

What is the respiratory quotient (RQ)?

What molecule is synthesized during the conversion of succinyl-CoA to succinic acid in the TCA cycle?

What molecule is synthesized during the conversion of succinyl-CoA to succinic acid in the TCA cycle?

Which molecule acts as a mobile carrier for the transfer of electrons between complex III and complex IV in the electron transport chain?

Which complex in the electron transport chain oxidises NADH?

What is the net gain of ATP molecules produced during fermentation of one molecule of glucose?

Which enzyme is responsible for the phosphorylation of glucose to glucose-6-phosphate in glycolysis?

What is produced during the conversion of succinyl-CoA to succinic acid in the TCA cycle?

Which of the following is produced during the conversion of succinyl-CoA to succinic acid in the TCA cycle?

What is the net gain of ATP molecules from fermentation of one molecule of glucose?

Which enzyme is responsible for the phosphorylation of glucose to form glucose-6-phosphate in glycolysis?

What is the first product formed from glucose during glycolysis?

What is the first product formed from glucose during glycolysis?

Which component of the electron transport chain transfers electrons from ubiquinone to cytochrome c?

Which complex in the electron transport chain is responsible for transferring electrons from reduced ubiquinone to cytochrome c?

What is the end product of alcoholic fermentation in yeast?

What molecule is synthesized during the conversion of succinyl-CoA to succinic acid in the TCA cycle?

What molecule is synthesized during the conversion of succinyl-CoA to succinic acid in the TCA cycle?

What is the primary end product of alcoholic fermentation carried out by yeast?

What is the role of ubiquinone in the electron transport chain?

Which complex in the electron transport chain is responsible for transferring electrons from ubiquinone to cytochrome c?

Which of the following statements about fermentation in plants is correct?

Which of the following statements about glycolysis is correct?

Which of the following statements about the TCA cycle is correct?

Which of the following statements about the respiratory quotient (RQ) is correct?

Which of the following statements about the electron transport chain (ETC) in respiration is correct?

Which of the following statements about the respiratory quotient (RQ) is correct?

Which of the following statements about fermentation is correct?

Which of the following statements about fermentation in plants is correct?

Which of the following statements about glycolysis are correct?

Which combination of statements about glycolysis is correct?

Which of the following statements about the TCA cycle are correct?

Which of the following statements about the TCA cycle is correct?

Which of the following combinations accurately describes components and processes involved in the Electron Transport Chain?

Which of the following statements about glycolysis is correct?

Which of the following statements about fermentation is correct?