make an Exercise and key answer of Marshall Science on grade 5 {The respiratory system}

1.Define the respiratory system.

2.List the main organs of the respiratory system.

3.Describe the function of the nose and mouth in the respiratory system.

4.Explain the role of the trachea in the respiratory system.

5.What is the purpose of the bronchi and bronchioles?

6.How does oxygen enter the bloodstream?

7.What happens to carbon dioxide in the respiratory system?

8.How does the diaphragm help with breathing?

9.Define respiration.

10.Name two common respiratory diseases.

Answer Key:

1.The respiratory system is the organ system in the human body responsible for taking in oxygen and expelling carbon dioxide.

2.The main organs of the respiratory system are the nose, mouth, throat, trachea, bronchi, lungs, and diaphragm.

3.The nose and mouth are the entry points for air into the respiratory system. They help filter, warm, and moisten the inhaled air before it reaches the lungs.

4.The trachea, or windpipe, connects the mouth and nose to the lungs. It acts as a passageway for air to flow in and out of the lungs.

5.The bronchi and bronchioles are responsible for branching out and delivering air to the lungs. They help in the process of gas exchange.

6.Oxygen enters the bloodstream through tiny air sacs called alveoli in the lungs. These alveoli have a large surface area, which allows oxygen to diffuse into the bloodstream.

7.Carbon dioxide, a waste product of cellular respiration, is removed from the bloodstream through the same process of diffusion in the alveoli. It is then exhaled out of the body.

8.The diaphragm is a thin muscle located below the lungs. It contracts and relaxes to create a pressure difference, allowing air to be sucked into the lungs during inhalation and pushed out during exhalation.

9.Respiration is the process of inhaling and exhaling air, as well as the exchange of gases (oxygen and carbon dioxide) between the body and the environment.

10.Two common respiratory diseases are asthma and chronic obstructive pulmonary disease (COPD).

Baca Artikel Lainnya :

1. Assalamualaikum Mas & Mbak semua. Sy Abdi akan mengikuti lomba inovasi, maka sy mau minta tolong kepada jenengan semua untuk testing fitur AI Personality Test dengan metode MBTI karena salah satu syarat inovasi itu harus ada user yang pernah pakai dan di
2. 082142634989
3. Sudah
4. Halo
5. Topic: Inspektorat Lumajang Time: May 21, 2025 19:00 PM Jakarta Join Zoom Meeting https://us06web.zoom.us/j/89047096227?pwd=DghECDntZbWDYZMOYnIB4ZvPsbBwyN.1 Meeting ID: 890 4709 6227 Passcode: 1234567890