3. Which of the following is not true about the structure of the alveoli
A. It has thick walls to trap gasses that enter during breathing.
B. It has many capillaries running through it's structure.
C. It has high surface area to allow lots of gas exchange.
D. It has a high concentration of oxygen and a low concentration of
carbon dioxide.
I think it's A. Can someone help me?
a n s w e r s
1.D
2.C
3.A
4.B
5.A
sorry if im wrong.
If you are from Connections Academy then E boy is correct. I got 100 percent on my quick check!
E boy is RIGHT
To determine which statement is not true about the structure of the alveoli, let's analyze each option:
A. It has thick walls to trap gasses that enter during breathing.
B. It has many capillaries running through its structure.
C. It has high surface area to allow lots of gas exchange.
D. It has a high concentration of oxygen and a low concentration of carbon dioxide.
The alveoli are tiny air sacs located at the ends of the bronchioles in the lungs. They are responsible for gas exchange, where oxygen enters the bloodstream and carbon dioxide is released.
Let's examine each option to identify the false statement:
A. It has thick walls to trap gasses that enter during breathing.
The walls of the alveoli are very thin to facilitate the exchange of gases between the air and the bloodstream. Therefore, A is not a correct statement.
B. It has many capillaries running through its structure.
The alveoli have an extensive network of capillaries surrounding them, allowing for efficient gas exchange. This statement seems accurate.
C. It has high surface area to allow lots of gas exchange.
The alveoli have a large surface area due to their numerous small spherical structures, maximizing their ability to exchange gases. This statement also appears to be true.
D. It has a high concentration of oxygen and a low concentration of carbon dioxide.
The alveoli are responsible for the exchange of gases, which means that carbon dioxide is released from the bloodstream into the air sacs and oxygen is absorbed into the blood. Therefore, D seems like an accurate statement.
Based on our analysis, the false statement about the structure of the alveoli is A, as the alveoli have thin walls to facilitate gas exchange, rather than thick walls to trap gases.
Therefore, option A is the correct answer to the question "Which of the following is not true about the structure of the alveoli?"