超星 - TED-4 - 查题吧

单选题

Approximately how many times do you breathe in every day?

A. 2,000
B. 7,000
C. 12,000
D. 17,000

单选题

What is the process called that uses oxygen and results in the production of the ATP we use as energy?

Anaerobic respiration
B. Ventilation
C. Aerobic respiration
D. Circulation

单选题

The level of red blood cells in the blood is regulated by which organ(s)?

A. The heart
B. The lungs
C. The liver
D. The kidneys

单选题

To ensure sufficient oxygen diffusion, the lungs contain hundreds of millions of miniature balloon-like projections. This increases the lungs’ surface area to approximately how many square meters?

A. 10
B. 70
C. 100
D. 120

单选题

Which of the following are necessary for oxygen to reach the cells of your body?

A. Nervous and musculoskeletal system
B. Cardiovascular and respiratory system
C. Gastrointestinal system and kidneys
D. All of the above

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