Why Is the Presence of Carbonic Anhydrase in RBCs So

question 41

Multiple Choice

Why is the presence of carbonic anhydrase in RBCs so crucial for carbon dioxide transport?

• A) Forms H₂CO_3, which is the major buffer for carbon dioxide.
• B) Drives the hydrolysis reaction that forms HCO₃^-.
• C) Forms H₂CO₃, which is the way the majority of carbon dioxide is transported.
• D) Without its formation, carbon dioxide could not be excreted at the lungs.

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Definitions:

Variable Costing

An accounting method that assigns only variable production costs to products, treating fixed costs as period costs.

Absorption Costing

An accounting method that includes all manufacturing costs (fixed and variable) in the cost of a product.

Operating Income

Income generated from regular business operations, excluding deductions of interest and taxes.

Variable Costing

A costing method that includes only variable production costs (materials, labor, and overhead) in product costs, treating fixed costs as period costs.