Slowest acting buffer system in the body ?: (A) PCO, buffer, (B) Respiratory buffer, (C) Chemical buffer, (D) Renal buffer
Answer is D. Ans. is 'd' i.e., Renal buffer(Re/ Principles of medical physiology p. 712)Not all buffer systems begin work at the same time.Chemical buffers respond first, followed by the respiratory system and finally, the renal system.