Last updated on August 30th, 2023 at 10:28 pm
Class 6 Biology Chapter 5 Respiratory System
Fill in the blanks:
The primary organs of the respiratory system are the __________. Answer: Lungs.
During heavy exercise, we get cramps in the legs due to the accumulation of __________. Answer: Lactic acid.
The normal range of breathing rate per minute of an average adult person at rest is __________. Answer: 15-18.
The nasal passage joins the nostrils to the __________. Answer: Trachea.
The upper end of the trachea has a voice box called __________. Answer: Larynx.
The process of respiration takes place partially in the __________ and partially in the mitochondria of the cell. Answer: Cytoplasm.
The exchange of gases between the air and the blood takes place across the walls of the __________. Answer: Alveoli.
Bronchitis is the swelling of lining of __________ tubes. Answer: Bronchial.
The process of breakdown of food in the cells of the body with the release of oxygen energy is called __________. Answer: Respiration.
The mechanism of breathing involves two main processes: __________ and expiration. Answer: Inspiration.
Match the Column
Question and answer:
Q- What are the primary organs of the respiratory system?
The primary organs of the respiratory system are the lungs.
Q- What causes Bronchitis?
Bronchitis is usually caused by viruses. Smoking and exposure to air pollutants are also some other causes of Bronchitis.
Q- What is the normal range of breathing rate per minute of an average adult person at rest?
The normal range of breathing rate per minute of an average adult person at rest is 15-18.
Q- What is the upper end of the trachea called?
The upper end of the trachea has a voice box called larynx.
Q- Where does the exchange of gases between the air and the blood take place?
The exchange of gases between the air and the blood takes place across the walls of the alveoli.
Q- What is the process of breakdown of food in the cells of the body with the release of oxygen energy called?
The process of breakdown of food in the cells of the body with the release of oxygen energy is called respiration.
Q- What are the two main processes involved in the mechanism of breathing?
The mechanism of breathing involves two main processes: inspiration and expiration.
