anatomy

    Purpose The student will describe the effects of carbon dioxide concentration on blood pH. Materials Willin" rel="nofollow">ing subject (someone complete the activities of the experiment) Timer (with a second hand) Glass Urin" rel="nofollow">inary and Salivary pH (litmus) paper Drin" rel="nofollow">inkin" rel="nofollow">ing straw Procedure Measure 2 ounces of water in" rel="nofollow">in a glass. Obtain" rel="nofollow">in the pH of the water in" rel="nofollow">in the glass. Record the water pH prior to experiment. Have the subject blow air through the straw in" rel="nofollow">into the water and keep blowin" rel="nofollow">ing in" rel="nofollow">into the water for 2 min" rel="nofollow">inutes in" rel="nofollow">inhalin" rel="nofollow">ing between exhalations. The subject should be breath as normal as possible while doin" rel="nofollow">ing this activity. Measure and record the pH of the water in" rel="nofollow">in the glass. Empty the water from the glass and refill it with fresh water. Have the subject do vigorous exercise for 5 min" rel="nofollow">inutes. Immediately after exercise have the subject blow in" rel="nofollow">into the water for 2 min" rel="nofollow">inutes (in" rel="nofollow">inhalin" rel="nofollow">ing between exhalations). Measure and record the pH of the water in" rel="nofollow">in the glass. Empty the water from the glass and refill it with fresh water. Have the subject rest for 5 min" rel="nofollow">inutes. Have the subject blow in" rel="nofollow">in the water for 2 min" rel="nofollow">inutes (in" rel="nofollow">inhalin" rel="nofollow">ing between exhalations). Measure and record the pH of the water in" rel="nofollow">in the glass. Results Answers to your experiment questions will comprise the Analysis / Data section of your lab report.