Answer the following questions in one sentence.
1. What is breathing?
2. What is breathing rate?
3. How are dust particles prevented from entering the lungs?
4. What is respiration without oxygen called?
5. How do microorganisms respire?
Answers
Answer .1
Breathing is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to bring in oxygen and flush out carbon dioxide.
Answer 2
Number of times human breathes in a minute .
i.e. 72 to 76 times
Answer 3.
Tiny hairs called cilia (pronounced: SIL-ee-uh) protect the nasal passageways and other parts of the respiratory tract, filtering out dust and other particles that enter the nose through the breathed air.
Answer:
1)the process of taking air into and expelling it from the lungs.
2) Respiratory rate
The respiratory rate is the rate at which breathing occurs. This is usually measured in breaths per minute and is set and controlled by the respiratory centre.
3) it's due to the hair present in nasal epithelium.
4) Cellular respiration can occur both aerobically (using oxygen), or anaerobically (without oxygen).
5)In order to respire, bacteria and fungi need food. These combined with oxygen (aerobic respiration) or without (anaerobic) form carbon dioxide and water (aerobic) or carbon dioxide and alcohol (anaerobic). When nutrients run out, the reproduction of bacteria or fungi stops and they begin to die out.