Given the PK_a Values for Phosphoric Acid of 2

question 21

Multiple Choice

Given the pK_a values for phosphoric acid of 2.14, 6.86 and 12.4, what is the ratio of HPO₄^2-/H₂PO₄^- in a typical muscle cell where the pH is 7.2?

• A)0.46
• B)2.2
• C)6.3 * 10^-6
• D)1.1 * 10⁵
• E)none of the above

---

Definitions:

Male Characteristics

Traits or features, both biological and physiological, traditionally associated with male organisms.

Hormones

Chemical messengers produced by glands that regulate physiological and behavioral actions in the body.

Eye Protrusion

the abnormal bulging or forward displacement of one or both eyes, often indicative of a medical condition.

Abnormal

A term used to describe any condition, pattern, or finding that deviates from the accepted norm or standard.