In Which of the Following Forms Does Ca²⁺ Exhibit Profound

question 155

Multiple Choice

In which of the following forms does Ca²⁺ exhibit profound effects on such things as neuromuscular excitability?

• A) free, unbound diffusible Ca²⁺
• B) intracellular Ca²⁺
• C) calcium phosphate crystals impregnated in the organic matrix of bone
• D) calcium bound to plasma proteins
• E) insoluble Ca²⁺ salts

---

Definitions:

Molding

The process of shaping a pliable raw material by using a rigid frame or model called a mold.

Assembly

The process of putting together various components or pieces to build a finished product.

Predetermined Overhead Rate

A rate calculated before the accounting period begins, used to estimate the cost of manufacturing overhead for a specific activity base.

Machine-Hours

An indicator of the time spent in production, calculating the duration in hours that machinery is active during the manufacturing cycle.