A: exchange of O2 and CO2 occurs by active transport
R: rate of diffusion does not depend on the partial pressure of O2 and CO2
Asked by arushidabhade | 5th Aug, 2019, 07:46: PM
- Both assertion and reason are false.
- Gases are exchanged between the alveolar air and the blood by diffusion.
- The rate of diffusion is determined by partial pressure gradients across the respiratory membrane in our lungs. Partial pressure is a function of both concentration and atmospheric pressure.
- The partial pressure for oxygen is much greater than that of carbon dioxide.
Answered by Sheetal Kolte | 6th Aug, 2019, 10:51: AM
- gas exchange in the lungs happen by the process of
- State the primary site of exchange of gases in lungs.
- Apart from RBCs, which is the other component of blood which carries oxygen?
- Name the substance formed after the combination of oxygen and haemoglobin.
- How many molecules of oxygen can a single haemoglobin molecule carry?
- State the significance of the sigmoid oxygen dissociation curve.
- Under normal physiological conditions, state the amount of oxygen which will be delivered by 100 ml of blood.
- State the name of the form in which CO2 is transported by blood.
- With respect to the partial pressures of oxygen and carbon dioxide, when are more molecules of carbaminohaemoglobin formed?
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