Breathing and Exchange of Gases — practice questions
77 curated practice questions from Breathing and Exchange of Gases (Biology NEET, NTA Exams) — 22 medium, 38 easy, 17 hard. Every question includes the final answer free; step-by-step worked solutions with a free account.
- The exchange of gases in the alveoli of the lungs take place by:
- Given below are two statements. One is labeled as Assertion and the other is labeled as Reason. STATEMENT - 1…
- Which structure of the lungs is directly involved in O 2 /CO 2 exchange between alveolar air and blood capillary?
- A worker in a stone-crushing industry has developed a chronic lung condition. Based on the chapter, which of the…
- Oxyhaemoglobin dissociates into oxygen and deoxyhaemoglobin at:
- The maximum volume of air a person can breathe in after a forced expiration is known as:
- A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues. This O 2 :
- A person is re-breathing air from a closed bag, leading to an increase in the concentration of CO₂ and H⁺ in the blood…
- Which fact suggests that most oxygen is transported from lungs to the tissue combined with hemoglobin rather than…
- Pair of muscles involved in normal breathing during sleep are
- Rate of diffusion of O 2 per unit differences in partial pressure is
- Which of the following statements about the factors affecting the rate of gaseous diffusion are CORRECT? I. The rate is…
- Frogs rely on skin respiration during aestivation. Why can’t they use pulmonary respiration instead during this period?
- Given below are two statements: Statement I : Relaxed diaphragm initiates the expiration process. Statement II …
- Occurrence of Emphysema is high in cigarette smoker because in it
- Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL, respectively. What will be his…
- Yawning in a class with closed door usually takes place because:
- Bulk of carbon dioxide (CO) 2 released from body tissues into the blood is present as:
- The majority of carbon dioxide produced by our body cells is transported to the lungs:
- In heavy smokers the alveoli of the lungs are enlarged and damaged which reduces the surface area for the exchange of…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. STATEMENT - 1…
- Given below are two statements: Statement I : O 2 is mainly carried in the forms of oxyhemoglobin. Statement II : CO 2…
- Which of the following is/are correct regarding the regulation of respiration? I. The respiratory rhythm centre is…
- What will be result of puncture in chest cavity without causing damage to the lungs
- Membranes separating air in pulmonary alveoli from blood capillaries:
- Volume of air breathed in and out during normal breathing is called:
- Which of the following statements regarding the regulation of breathing are INCORRECT? I. Pneumotaxic centre is in the…
- The correct sequence of events during normal expiration is: I. Relaxation of diaphragm and intercostal muscles. II…
- Assertion : Bacteria and other particles pass down the wind pipe and enter the lungs, causing damage to the tissue…
- Given below are two statements: Statement I : Inspiration starts with the contraction of Diaphragm. Statement II …
- The diffusion membrane in the alveoli is composed of which of the following layers? I. Endothelium of alveolar…
- Which two of the following changes (1 - 4) usually tend to occur in the plain dwellers when they move to high altitudes…
- The correct sequence of events from the production of CO₂ in a tissue cell to its exhalation is: I. Transport of HCO _…
- Arrange the following pulmonary volumes in the order of increasing values: (1) Tidal volume (2) Residual volume (3)…
- Given below are two statements: Statement I : Barriers present between alveoli and capillaries has to be very thin for…
- What will be the volume of O 2 supplied by 1L of blood to the tissue in normal physiological condition
- O 2 binding to Hb in Alveoli does not occur in condition of
- Approximately seventy percent of carbon-dioxide absorbed by the blood will be trasported to the lungs:
- Which of the following options correctly represents the lung conditions in asthma and emphysema, respectively?
- The partial pressure of oxygen in the alveoli of the lung is:
- By which mechanism, oxygen is transported from lungs to cells?
- Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because:
- Which of the following statements about gaseous exchange in plants is/are INCORRECT? I. Plants have specialized organs…
- Name the chronic respiratory disorder caused mainly by cigarette smoking:
- Which of the following combinations defining respiratory capacities is INCORRECT? I. Inspiratory Capacity (IC) = Tidal…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Given below are two statements: Statement I : Respiratory Rhythm Centre controls Inspiration and expiration to suit the…
- Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of:
- Which of the following is a function of the conducting part of the respiratory system? I. Transport of atmospheric air…
- Given below are two statements: one is labeled as Assertion (A) and the other is labeled as Reason (R). Assertion (A) …
- The cellular respiration differs from breathing because during cellular respiration:
- Given below are two statements: Statement I : Plasma can carry both oxygen and CO 2 . Statement II : RBC can carry both…
- Workers working with lime stone quarries or cement plants gets exposure to the disease like:
- Which of the following factors are favourable for the formation of oxyhaemoglobin in alveoli?
- Given below are two statements: Statement I : Inspiration is passive process while expiration is active process…
- Which of the following is an occupational respiratory disorder?
- Given below are two statements: Statement I : Occupational Respiratory Disease causes fibrosis. Statement II …
- In Bohr's effect Oxygen-hemoglobin dissociation curve shifts to the right when:
- Even when there is no air in it, human trachea does not collapse due to:
- Given below are two statements: Statement I : Pneumotaxic Centre is located in the Pons of the brain. Statement II : It…
- If a person has tachycardia and bluish tongue, most probably he is in:
- Given below are two statements: Statement I : Excessive cigarette smoking leads to Emphysema. Statement II : In…
- Listed below are respiratory capacities (1 - 4) with their jumbled values in a normal human adult. Respiratory…
- Major quantity of CO 2 is transported in human body in the form of:
- The Total Lung Capacity (TLC) is the total volume of air accomodated in the lungs at the end of a forced inspiration…
- Given below are two statements: Statement I : Partial pressure of O 2 in Oxygenated blood is same as in Tissues…
- Specialised centre in brain which reduces inspiratory duration upon stimulation is
- The diagram represents the human larynx. Choose the correct combination of labeling from the options given. 定
- What is not true about right shift of O 2 dissociation curve
- Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory…
- Given below are two statements: Statement I : Haemoglobin combines reversibly with O 2 to form Oxyhaemoglobin…
- Regarding transport of gases O 2 and CO 2 , which is not correct.
- Given below are two statements: Statement I : 100 ml of oxygenated blood carries approximately 5 ml of O 2 . Statement…
- Which one of the following is a possibility with regard to breathing, by making a conscious effort?
- Given below are four matching of an animal and its kind of respiratory organ: Silver fish: trachea Scorpion: book lung…
- Find the CORRECT comparisons of respiratory systems: Arthropods: Tracheae, gills, or book lungs. Molluscs: Feather-like…
- Which condition is not prevalent in the tissue that causes dissociation of oxyhemoglobin