Where does the exchange of oxygen (from the air) with carbon dioxide (from the cells) take place?

Biology

2 answers:

Katen [24]2 years ago

8 0

Answer:

The Answer is Option D. 

Exchange of respiratory gases, oxygen and carbon dioxide take place in the alveoli of the lungs. Oxygen which is inhaled from the atmosphere diffuses through the walls of the alveoli and reaches to the adjacent capillaries into the red blood cells.

nexus9112 [7]2 years ago

7 0

Answer:

D. Where are the alveoli meet capillaries

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Imagine that you are observing an enzyme-catalyzed reaction in the lab. Every time you add more enzyme, the reaction rate increa

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All the substrates are bound to the enzyme, thats why the reaction rate stopped increasing.

Explanation:

Actually an enzyme works by binding a substrate molecule to its active site, producing a product , resulting in an increase in the rate of reaction.

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Whenever enzymes are added , reaction rate increases as the substrates are being bound to the enzyme's active sites but then occurs a stage where further addition of enzyme cannot increase the reaction rate because all the substrates have bound to the enzyme and there are no substrates left. Hence the reaction rate stopped increasing.