Respiration of the Confused Flour Beetle in Five Atmospheres of Varying CO2:O2 Ratios1

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The respiratory gas exchange of adult (2-week-o]d) confused flour beetles, Tribolium confusum Jacquelin duVal, was determined at 30 in 5 different CO2:O2 ratios ranging from 1:0.74 to the "normal atmosphere" ratio of 1:717. The respiratory quotient (RQ) was less than 1.0 in all CO2:O2, ratios except 1:717. At the lowest O2, concentration (4.9%) the RQ was lowest (0,60) . Lack of O2 rather than high CO2 content appeared to stimulate increased O2 consumption.

Document Type: Research Article

Publication date: February 1, 1968

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