In What Way Does Hemoglobin Act as a Buffer Against

question 12

Multiple Choice

In what way does hemoglobin act as a buffer against changes in blood pH?

• A) Subsequent binding of oxygen is drastically reduced after the first one is bound.
• B) Hemoglobin binds some of the excess protons released by carbonic acid.
• C) Hemoglobin removes excess protons from the red blood cells so that they can be excreted through the kidneys.
• D) Hemoglobin produces protons or hydroxide ions as needed to alter the blood pH.
• E) All of the above answers apply.