"1-The partial pressure of CO2 in the lungs can be varied rapidly by the rate and depth of breathing. For example:

"1-The partial pressure of CO2 in the lungs can be varied rapidly by the rate and depth of breathing. For example: A common remedy to alleviate hiccups is to increase the concentration of CO2 in the lungs. This can be achieved by holding one`s breath, by very slow and shallow breathing or breathing in and above normal.Quantitatively explain the effect of these procedures on the blood PH?2-A peptide has the sequence:Glu-His-Trp-Ser-Gly-Leu-Arg-Pro-Glya)What is the net charge at PH3,8 and 11?b)estimate the PI for this peptide"-