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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The practice of comparing business processes and performance metrics to industry bests or best practices from other industries to improve performance.

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