Acid-base physiology: practice question

The best answer is B, Bicarbonate buffer. The relevant Acid-base physiology principle makes Bicarbonate buffer the best answer because it directly explains the structure or physiological response in the stem.

Ammonia only is not supported by the key clue provided in this item.

Hemoglobin only is associated with a different anatomical or physiological role.

Phosphate buffer only does not correspond to the structure or response being tested.

It tests Acid-base physiology in Physiology. The correct option holds because: Correct. Bicarbonate buffer directly follows from the core acid-base physiology relationship.

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

For each system, sketch the key graph (pressure–volume loop, oxygen dissociation curve, nephron handling) and explain it aloud. Then use the flashcards and the other Physiology questions on this site to test what stuck.

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.