How Is the Majority of CO₂ Transported from the Tissues

question 43

Multiple Choice

How is the majority of CO₂ transported from the tissues to the lungs?

• A) bicarbonate
• B) dissolved in the plasma
• C) carbamino Hb
• D) carbamino compounds

---

Definitions:

Avogadro's Number

A constant that represents the number of constituent particles, usually atoms or molecules, that are contained in one mole of a substance, approximately \(6.022 \times 10^{23}\).

Carbon-12

A stable isotope of carbon with 6 protons and 6 neutrons, serving as the standard for atomic mass among elements.

Atoms

The basic units of matter, consisting of a nucleus surrounded by electrons.

Mass Number

The total number of protons and neutrons in an atom's nucleus, determining the atom's mass.