Explain the mechanism of breathing in human beings. Look at the picture given below and answer the questions that follow
a. What could be the aim of the experiment? b. Why do you think germinating seeds are being
Lime water
used in the experiment?
c. Why has lime water in the test tube turned milky?
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Explanation:
The mechanism of breathing involves two main processes: inspiration and expiration. Inspiration occurs when the diaphragm and the external intercostal muscles contract. ... The contraction or relaxation of muscles around the lungs changes the entire volume of air inside the lungs, and so does the pressure.
The aim is to prove that there is CO2 in the Air.
It turns milky due to the presense of CO2 in the air
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