Which of the following statements is correct about the blood bicarbonarte buffer

Question

Which of the following statements is correct about the blood bicarbonarte buffer system? a. Increasing the CO2 (Pco2) in the blood will decrease the [HCO, VTH CO,] ratio in the blood which increases the pH of the blood plasma. the blood which lowers the pH the concentration of [H CO] which causes metabolic alkalosis. b. Obstructive lung disease, such as pneumonia or emphysema, causes an increase in CO (Pcon) in c. Metabolic acids react react with HCO, and excessive production of acids by the liver decreases d. The pH of the blood is 7.40 because the ratio of [HCOsH COs] is 1:1. yperventilation causes the pH of the blood to become more acidic because it causes the Pco2 to ecrease. Which of the following statements is not correct? a. The lower the pKa of a weak acid, the stronger the acid b. Protons dissociate from weak acids as the pH is increased. c. All ampholytes (amino acids, peptides and proteins) are negatively charged at pH values below their isoelectric pH. Protons bind to conjugate bases as the pH is lowered. The net charge of an ampholyte (amino acid, peptide, or protein) is always exactly zero at its isoelectric point, pI (pHi). d. e. Which of the following is the predominant structure of "isoelectric" Threonine? A. C. OH O NH3 NH B. D. OH O OH NH3 .. Which of the following structures is the predominant structure of His in the blood at pH 7.40? CH2-CH-C-o CH2-CH-0-o NH NH H e B' NH

Explanation / Answer

ANSWER:-The correct statement regarding to blood bicarbonate buffer system is-

It increases in CO2(PCO2) in the blood which decrese the pH.It causes lung diseases like pneumonia or emphysema and so on. so the answer (b) is correct.

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