Living organisms use oxygen to ________.
A. reduce heat production
B. release energy stored in the molecules of food
C. donate electrons for cellular metabolism
D. remove metabolic wastes
Answer: B
You might also like to view...
Which of the following is correct regarding acclimatization?
A) At high altitudes, hemoglobin's affinity for O2 is increased because BPG concentrations increase. B) High-altitude conditions always result in lower-than-normal hemoglobin saturation levels because less O2 is available to be loaded. C) Decreases in arterial PO2 cause the peripheral chemoreceptors to become less responsive to increases in PCO2. D) When blood O2 levels decline, the kidneys produce more erythropoietin, which stimulates breakdown of red blood cells in the spleen.
A technique used to resolve contradictory results in scientific studies is
A) retrospective analysis. B) longitudinal analysis. C) meta-analysis. D) cross-sectional analysis. E) prospective analysis.
Which muscle of the tongue elevates the tongue and depresses the soft palate?
A) genioglossus B) palatoglossus C) hyoglossus D) styloglossus
Chemical energy from food is converted to another form of chemical energy called ____ in the mitochondria
a. ATP b. glycogen c. glucose d. RNA