Question

which fluid is the most basic (alkaline)?
a. blood
b. urine
c gastric juice
d. water

Explanation:

To determine the most basic (alkaline) fluid, we analyze each option:

• Blood has a pH range of 7.35 - 7.45, which is slightly alkaline.
• Urine typically has a pH range of 4.6 - 8.0, but is often slightly acidic or neutral.
• Gastric juice has a very low pH (1.5 - 3.5) due to hydrochloric acid, making it acidic.
• Pure water has a neutral pH of 7.

Among these, blood has the highest (most alkaline) pH compared to the others.

Answer:

a. Blood