The graph below shows how the respiratory system changes as a person goes from resting to running to walking to resting again. The respiration rate is the number of breaths a person takes per minute.
Based on the graph, which of the following is a function of the respiratory system?
A.
to deliver oxygen to cells for cellular respiration at different rates so that different amounts of energy can be made when needed
B.
to detect changes in the outside world through nerve impulses and send these impulses throughout the body
C.
to increase the breathing rate during heavy activity so that more carbon dioxide can be absorbed by respiratory cells
D.
to decrease a person's heartbeat during heavy activity and decrease the flow of blood to areas that will pool with blood
The correct answer is C.
The respiratory system increases the breathing rate during heavy activity so that more carbon dioxide can be absorbed by respiratory cells. This helps to remove waste gases and maintain homeostasis in the body.
The correct answer is:
C. to increase the breathing rate during heavy activity so that more carbon dioxide can be absorbed by respiratory cells
To determine the correct answer, let's analyze the options provided one by one and match them with the information given in the graph:
A. The graph shows that the respiration rate increases during heavy activity (running) and decreases when at rest. This is consistent with the respiratory system delivering more oxygen to cells when more energy is needed and less oxygen when at rest. Therefore, option A is a correct function of the respiratory system.
B. The graph does not provide any information about the respiratory system detecting changes in the outside world or sending nerve impulses throughout the body. This option seems unrelated to the information presented in the graph.
C. The graph clearly shows that the respiration rate increases during heavy activity (running) and decreases when at rest. This supports the idea that the respiratory system increases the breathing rate during heavy activity to absorb more carbon dioxide. Therefore, option C is a correct function of the respiratory system.
D. The graph does not provide any information about the respiratory system affecting a person's heartbeat or blood flow to specific areas. This option seems unrelated to the information presented in the graph.
Based on the analysis, the correct answers are options A and C. These options match the information provided in the graph and demonstrate functions of the respiratory system.