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BECE Science 2010 Paper

Question : 36

Total: 40

Solution:

Concept:

Plasma carries dissolved substances, while blood cells and platelets are suspended, not dissolved.

Explanation:

Mineral salts dissolve in the water of plasma to form ions such as

\mathrm{Na^+}

\mathrm{K^+}

, and

\mathrm{Cl^-}

Phagocytes, platelets, and red blood cells are cellular or cell-like components suspended in plasma, not dissolved in it.

Answer:

A. Mineral salts

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