Physioex Exercise 10

Topics: Carbon dioxide, PH, Acid-base homeostasis Pages: 2 (524 words) Published: June 24, 2012
EXERCISE 10: Acid-Base Balance
Student Name: Landy Jean-BaptisteStudent ID: 4304736

Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. You are only required to perform Activity 1 & 2 in this simulation. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting, e.g. Exercise10_JohnSmith.doc. Please make sure that your answers are typed in RED. (You may delete these instructions before submission.) Grading: True/False, Multiple-Choice, and Fill-in-the-blank type questions will be worth 1 point each whereas Short-answer type questions will be worth 2 points each. This lab will be worth a total of 21 points but will be converted to a percentage grade when registered in your “Gradebook”.

ACTIVITY 1: Hyperventilation
1.A substance that dissolves in water to release hydrogen (H+) ions is called a(n) _______. ACID
2.Which of the following is not a regulatory mechanism for acid/base balance in the body? a.the kidneys
b.the respiratory system
c.protein buffers
d.the digestive system
3.The maximum pH measured during hyperventilation was _______. 7.67
4.Describe the normal ranges for pH and PCO2 in the blood.
The normal range for ph is 7.35-7.45 and the normal range for PCO2 is 35-45 5.Describe what happened to the pH and the carbon dioxide in the blood with hyperventilation. With hyperventilation the ph increases and carbon dioxide decreases 6.Explain how returning to normal breathing after hyperventilation differed from hyperventilation without returning to normal breathing. When breathing is returning to normal, for about 10secs the breath is held in order to retain CO2 before returning to normal breathing after hyperventilation to normal breathing. 7.Describe some possible...
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