Unformatted text preview: 9:41 AM Wed Nov 13 4of4 Not Secure — may'fieldschools.org 32. A scientist setup a respiration chamber as shown below. She placed a 'lo nlr pump Open to :5..— mouse in ﬂask B. Into ﬂasks A, C, and D, she poured distilled water mixed
with the acid-base indicator phenolphthalein. In the presence of C02,
phenolphthalein turns from pink to clear. She allowed the mouse to stay in the chamber for about an hour. a. Write the equation for cellular respiration.
CsH1 206 +602 --> 6H20+ 6002 + A TP
b. Based on this equation and the setup shown here, what substance(s) would you expect the mouse in ﬂask B to give off?
T he mouse will produce carbon dioxide.
(2. What will the mouse require to carry out cellular respiration? Oxygen and glucose. d. Describe the flow of materials through the ﬂasks. Will the mouse receive ﬁ‘esh air so that it can survive? Air willﬂow into ﬂasks C and D, The oxygen will be converted to carbon dioxide causing ﬂask/i to receive carbon dioxide.
6. How will the scientist be able to detect whether the mouse is carrying out cellular respiration? Flask/1 will turn pink ﬁ'om the presence of carbon dioxide. The scientist knows this is cellular respiration because A is pink compared to C and D. f. Assume that the scientist set up an identical respiration chamber, except that in this setup she placed a cricket in ﬂask B
instead of a mouse. At the end of one hour, she measured the amount of CO; given off by the cricket and the mouse, A
small amount of C02 had been given off by the mouse, but little to no C02 had been given off by the cricket. Was the cricket
undergoing cellular respiration? Explain these results. Yes it is still doing cellular respiration, its just smaller and produces less carbon dioxide. g. Assume that the scientist set up an identical respiration chamber, except that in this setup she placed a mouse that had
been exercising on a hamster wheel. Then, the scientist measured the amount of C02 given off by both mice at the end of 15
minutes. Predict which setup produced the most C02. Explain your answer: The exercising mouse will produce the most carbon dioxide because it is processing glucose at the highest rate. Movement needs ATP, ATP is made by cellular respiration and cellular respiration produces carbon dioxide. 0) L 89% C} ...
View Full Document
- Fall '13