The Major Reason That the Apparent Diffusion Coefficient of Ca²⁺

question 2

Multiple Choice

The major reason that the apparent diffusion coefficient of Ca²⁺ in muscle cell cytosol is much lower than in water is that

• A) The cytosol is more viscous than water
• B) The re are obstacles to the free movement of Ca²⁺ in the cytosol that aren't present in water
• C) Cytosol contains fixed proteins that bind Ca²⁺, slowing its movement
• D) The cytosol moves most electrolytes, but not Ca²⁺, around by convection
• E) Ca²⁺ causes solidification or gelling of the cytosol

---

Definitions:

Graph

A visual representation of data, showing the relationship between variables.

Unit-Profit Margin

The measure of profit derived from each unit of product sold, calculated by subtracting the cost of goods sold from the sales price per unit.

Output

The cumulative output of products or services generated by a corporation, sector, or economic system.

Graph

A visual representation of data, often showing relationships between two or more variables, typically displayed using lines, bars, or points.