Which of the Following Statements About Hemoglobin Is True

question 51

Multiple Choice

Which of the following statements about hemoglobin is true?

• A) BPG decreases the affinity of hemoglobin for oxygen by stabilizing the T-state
• B) BPG decreases the affinity of hemoglobin for oxygen by releasing an H⁺
• C) hemoglobin is composed of 4 myoglobin molecules
• D) hemoglobin binds carbon dioxide at the heme oxygen binding site
• E) increased acidity increases hemoglobin's oxygen affinity

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Definitions:

Deferred Income Tax Asset

A financial statement item that refers to taxes that have been accrued but not yet paid, which is considered a company asset because it indicates future tax payments that are lower than the current tax expense.

Income Before Taxes

A financial measure indicating the profitability of a company before accounting for income taxes.

Income Tax Rate

The percentage rate at which income is taxed by the government, varying based on income level and other factors.

Loss Carryback

A tax provision allowing companies to apply a net operating loss to previous tax years' profits, resulting in a tax refund.