27. (7 pts) Shown below are the equilibrium reactions for an important buffer us

Question

27. (7 pts) Shown below are the equilibrium reactions for an important buffer used to maintaining pH homeostasis in the blood. (moreMess) H+ concentration than pH 4. as needed a. pH 7 is b. What is the source of the CO2 in this reaction? c. Buffers are- d. Circle the component(s) in the reactions above that is/are considered to be the "buffer e. Why would holding your breath make your blood pH becomes too acidic? (briefly discuss the left side of reaction) times pairs that take up or release f. Acidic means that the reaction above has shifted too far to the --( left / nght) and the pH is too ( high / low ). g. In order to "buffer" the acidic solution to normal pH, an enzyme shifts the reaction to the(left/right) h. You die if your blood gets too acidic or too basic. Why? (i) what type of bond is disrupted (ii) on what types of macromolecules (ii) therefore what happens to those macromolecules? 28. (3 pts) List the three general types of cellular work: Circle one of these and three types and describe an example from the 9 examples that I gave you at the end of cellular work slides. Be specific. Don't say "cellular respiration!

Explanation / Answer

A. PH 7 is 1000 times less H+ concentration than pH4.

B. Source of CO2 is H2CO3

C. Buffers are acid /base pairs that release or take up H+ as needed.

D. The buffer is HCO3-

E. Because holding breathe will increase carbon dioxide and the above reaction will towards right side and there will formation of more hydrogen ions.

F. Acidic means that the reaction above has shifted too much towards right side and the pH becomes too low.

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