A. Faster pupil contraction and dilation
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Exchange of gases between alveoli and the bloodstream ( Option C )
Internal respiration is the process of exchanging gases ( i.e. carbon dioxide and oxygen ) between the bloodstream and the alveoli of an organism. as seen in human.
- Internal respiration ( exchange of gases) occurs between Alveoli and the bloodstream. While
- External respiration occurs between the atmosphere and the alveoli.
Also the Alveoli is important in both external and internal respiration. but for internal respiration, the alveoli exchanges gases with the bloodstream before it is passed to the internal issues .
Hence we can conclude that the true statement about internal respiration is ; Exchange of gases between the alveoli and the bloodstream.
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The answer is primary producers
Glucose and oxygen play the role of the reactants in cellular respiration. We breathe in oxygen and our bodies use glucose (sugar) to make energy. Energy is then stored as ATP and CO2.