A. Diffusion of O$_{2}$ and CO$_{2}$ between blood and tissues
B. Diffusion of O$_{2}$ and CO$_{2}$ across alveolar membrane
C. Pulmonary ventilation by which atmospheric air is drawn in and CO$_{2}$ rich alveolar air is released out
D. Cellular respiration
E. Transport of gases by the blood
Choose the correct answer from the options given below :
Respiration Steps Order
Understanding the sequence of events in human respiration is key. These steps involve breathing, gas exchange, transport, and cellular metabolism.
Pulmonary Ventilation Explained
This is the first stage, involving the intake of atmospheric air into the lungs and the expulsion of carbon dioxide-rich alveolar air. This corresponds to step C.
Gas Exchange Across Alveoli
Next, oxygen ($O_2$) moves from the lung alveoli into the blood, while carbon dioxide ($CO_2$) moves from the blood into the alveoli. This is step B.
Gas Transport by Blood
The blood then circulates, carrying oxygen ($O_2$) from the lungs to the body tissues and returning carbon dioxide ($CO_2$) from the tissues to the lungs. This is step E.
Gas Exchange Between Blood and Tissues
At the body tissues, oxygen ($O_2$) diffuses from the blood into the cells, and carbon dioxide ($CO_2$) diffuses from the cells into the blood. This is step A.
Cellular Respiration's Role
The final step is cellular respiration, where cells use oxygen ($O_2$) to break down nutrients and produce energy (ATP), releasing carbon dioxide ($CO_2$) as a byproduct. This is step D.
The correct order integrating these physiological processes is C, B, E, A, D.
Similar Questions
- Match List I with List II :
List I (Respiratory Volume) List II (Capacity in mL) A. ERV (Expiratory Reserve Volume) I. 2500 - 3000 mL B. RV (Residual Volume) II. 500 mL C. IRV (Inspiratory Reserve Volume) III. 1000 - 1100 mL D. TV (Tidal Volume) IV. 1100 - 1200 mL
Choose the correct answer from the options given below : - Which of the following represents the correct sequence of arrangement of bones in the lower limb of humans ?
The number of vertebrae in a human is ____________ .
- Which of the following is the correct order of arrangement of vertebrate column from the head to toe ?
- Muscle contraction is initiated by a signal sent by the central nervous system by the release of ______
Important Questions from Human Anatomy and Physiology-I
- Match List I with List II :
List I (Respiratory Volume) List II (Capacity in mL) A. ERV (Expiratory Reserve Volume) I. 2500 - 3000 mL B. RV (Residual Volume) II. 500 mL C. IRV (Inspiratory Reserve Volume) III. 1000 - 1100 mL D. TV (Tidal Volume) IV. 1100 - 1200 mL
Choose the correct answer from the options given below : - Which of the following represents the correct sequence of arrangement of bones in the lower limb of humans ?
The number of vertebrae in a human is ____________ .
- Which of the following is the correct order of arrangement of vertebrate column from the head to toe ?
- Muscle contraction is initiated by a signal sent by the central nervous system by the release of ______
