Which of the following steps or processes in aerobic respiration include the production of carbon dioxide?
(a) breakdown of glycogen
(b) glycolysis
(c) conversion of pyruvate to acetyl CoA
(d) oxidative phosphorylation
Only choice (c) is correct. One carbon is oxidized and released as carbon dioxide when pyruvate is converted to acetyl CoA.
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Which of the following are associated with the process of stem nodulation?
A. Nod factors are not part of stem nodulation. B. A common bacterial species associated with stem nodulation is Bradyrhizobium. C. Bacteria enter through ruptures in the stem epidermal cells. D. All of these are associated with stem nodulation.
Select all of the following relationships between the skeletal and muscular systems that produce movement of the body.
Synthetic organic compounds such are chlorofluorocarbons (CFCs) are damaging to the world's fresh water supply.
a. true b. false
During normal exhalation, air leaves the lungs because
A. the strong chest muscles force air out by squeezing the chest cavity. B. there is more carbon dioxide inside the lungs than outside, so air flows outward by diffusion. C. air currents outside the body draw air out of the lungs. D. of the elastic recoil of muscles making air pressure greater inside the lungs than outside, so it flows outward.