CHAPTER 17: BREATHING AND EXCHANGE OF GASES

What is vital capacity of our lungs?

Which one of the following statements is incorrect?

Name the pulmonary disease in which alveolar surface area involved in gas exchange is drastically reduced due to damage in the alveolar walls.

During oxygen transport the oxyhaemoglobin at the tissue level liberates oxygen to the cells because in tissue.

If the respiratory rate of ‘A’ is 35 breaths/min and tidal volume 185 cc/breath and of ‘B’ is 25 breaths/min and tidal volume 259 cc/breath then

Severe Acute Respiratory Syndrome (SARS)

The presence of CO₂ in blood will lower pH because CO₂ combines with____, with the rate of reaction increased by_____ .

Approximately seventy percent of carbondioxide absorbed by the blood will be transported to the lungs

Which one of the following mammalian cells is not capable of metabolising glucose to carbondioxide aerobically?

The toxic effect of CO is due to its greater affinity for haemoglobin as compared to O2 approximately by

Mark the correct statement.

In alveoli of the lungs, the air at the site of gas exchange, is separated from the blood by

Which one of the following organs in the human body is most affected due to shortage of oxygen?