Which of the Following Is the Most Plausible Explanation for Why

question 5

Multiple Choice

Which of the following is the most plausible explanation for why an animal cell would be unable to reduce the Ca²⁺ concentration in its cytosol compared with the extracellular fluid?

• A) inactivation of calcium-gated ion channels in the cell membrane
• B) excessive transport of calcium from the cytosol into the endoplasmic reticulum
• C) insufficient ATP levels in the cytosol
• D) insufficient levels of protein kinase in the cell

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Definitions:

Labor Force

The total number of people employed and unemployed, actively seeking work in an economy.

Developed Countries

Nations with highly advanced economies, significant industrial activity, and high living standards.

Mortality

The incidence of death within a population.

Literacy Rate

Literacy rate refers to the percentage of people within a population that can read and write at a specified age.