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Part Three: Acid/Base Homeostasis in the Human Body Beginning Questions: Carbon dioxide is formed during cellular respiration and then...

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Medical Sciences

Part Three: Acid/Base Homeostasis in the HumanBody

Beginning Questions:

  1. Carbon dioxide is formed during cellular respiration andthen diffuses out of cells into the interstitial fluid and theninto the bloodstream. Most of the carbon dioxide is transported inour blood as bicarbonate. Write the chemical equation for theformation of bicarbonate and hydrogen ions from carbon dioxide andwater below.



  1. Under which of the following situations would theformation of bicarbonate and hydrogen ions be greater? Circle youranswer.

At Rest After Exercise

Change in pH after exercise.

Calculate the percentage change in pH for bothprocedures and record your values in the table below

  • % change in pH = ((control pH – experimental pH)/controlpH) * 100

Condition:

Breaths/Min

Control pH

Experimental pH

% pH Change

Class Avg of % pH Change

At Rest

13

6.8

6.2

8.8%

9.2%

After Exercise

34

7.1

5.8

18.3%

15.6%

Questions:

  1. Explain how blowing air into water caused the change inpH.




  1. Describe why exercise caused the observed change inpH.





Answer & Explanation Solved by verified expert
3.9 Ratings (355 Votes)
Q Write the chemical equation for the formation ofbicarbonate and hydrogen ions from carbon dioxide and waterbelowThis is the equation that shows the formation of bicarbonate andhydrogen ions from water and carbon dioxide This is a reversiblereaction It is catalyzed by the enzyme Carbonicanhydrase This equation also forms the basis of    See Answer
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