Is the CO2 you breathe out synthesized from the O2 you breathe in? Explain.
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- We inhale oxygen when we breathe and exhale carbon dioxide. What is the oxygen used for and where does the carbon dioxide come from?Is the oxygen that we breathe in the same oxygen that is found in the CO2 that we breathe out? If not, what happens to the Oxygen that we breathe in?If the volume of breath of a person is 450mL, how much of it is actively participating in the exchange of O2 and CO2?
- Explain why aerobic respiration requires O2 and releases CO2.Would you expect to find CO2 in your breath? Why?BASED ON THE TEXT, what is meant by "semipermeable membrane" and why is it necessary to gas exchange between O2 and CO2? USE THIS SENTENCE STARTER : a semipermeable membrane means.... A semipermeable membrane is needed for exchange of oxygen and carbon dioxide because...
- The respiratory membrane is found in the________ .This membrane consists of the wall of a(n)_______ and the wall of a(n)________ joined by proteinstrands. The respiratory membrane is (how many?)______cell(s) thick. The inside of the respiratory membrane is coated with a watery fluid containing_______.Do normal breathing conditions increase or decrease CO2 concentration?Name the vessels (in the correct sequence) that CO2 travels in during transport. Describe what happens to CO2 during external respiration. Which structures does it cross? What is the pathway of CO2 in ventilation? How is it different from the pathway that oxygen takes?
