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Respiration Class 10 MCQ Online Test

The respiratory system is a vital biological system made up of specific organs and structures that enable the exchange of gases. Its main role in the human body is to take in oxygen and remove carbon dioxide. 

This process, called respiration, generates energy by breaking down glucose molecules in our cells. Oxygen is inhaled during respiration to support these essential functions.

Here below we have collected some important Respiration Class 10 MCQ Online Tests.

Respiration Class 10 MCQ Online Test

1. Which of the following are parts of the human respiratory system?
a) Heart and liver
b) Lungs and kidneys
c) Lungs and trachea
d) Stomach and intestines
Answer: c) Lungs and trachea

2. Which of the following are parts of the human respiratory system?
a) Brain and spinal cord
b) Heart and blood vessels
c) Lungs and diaphragm
d) Liver and pancreas
Answer: c) Lungs and diaphragm

3. What are the parts of the human respiratory system?
a) Heart and liver
b) Stomach and intestines
c) Lungs and trachea
d) Kidneys and bladder
Answer: c) Lungs and trachea

4. What are all the parts of the human respiratory system?
a) Nose, pharynx, larynx, trachea, bronchi, lungs
b) Brain, heart, stomach, intestines
c) Liver, kidneys, pancreas
d) Bones, muscles, nerves
Answer: a) Nose, pharynx, larynx, trachea, bronchi, lungs

5. Which of the following parts are found in the respiratory system?
a) Kidneys and bladder
b) Liver and pancreas
c) Lungs and bronchi
d) Heart and blood vessels
Answer: c) Lungs and bronchi

6. What is respiration?
a) The process of inhaling and exhaling
b) The process of breaking down glucose to release energy
c) The transport of oxygen in the blood
d) The exchange of gases in the lungs
Answer: b) The process of breaking down glucose to release energy

7. Which of the following statements is true about respiration?
a) Respiration only occurs in humans
b) Respiration produces oxygen
c) Respiration is an anaerobic process
d) Respiration involves the breakdown of glucose
Answer: d) Respiration involves the breakdown of glucose

8. Which statement is true about the respiratory system?
a) It only involves the lungs
b) It exchanges oxygen and carbon dioxide between blood and tissues
c) It is not involved in gas exchange
d) It is not necessary for cellular respiration
Answer: b) It exchanges oxygen and carbon dioxide between blood and tissues

9. Which of the following is correct for respiration in plants?
a) Plants do not respire
b) Plants only respire during the day
c) Plants respire aerobically using mitochondria
d) Plants respire anaerobically using chloroplasts
Answer: c) Plants respire aerobically using mitochondria

10. Which of the following is the correct definition of respiration?
a) The process of breathing in oxygen
b) The breakdown of glucose to release energy
c) The transport of oxygen in the blood
d) The exchange of gases in the lungs
Answer: b) The breakdown of glucose to release energy

11. Which of the following statements about the functions of the respiratory system is/are true?
a) It helps in the exchange of oxygen and carbon dioxide
b) It helps regulate pH balance in the body
c) It assists in vocalization
d) All of the above
Answer: d) All of the above

12. Where are your lungs located?
a) In the abdominal cavity
b) In the thoracic cavity
c) In the cranial cavity
d) In the pelvic cavity
Answer: b) In the thoracic cavity

13. Most of the carbon dioxide produced in the tissues is transported to the lungs as:
a) Bicarbonate ions (HCO3-)
b) Oxygen (O2)
c) Carbon monoxide (CO)
d) Nitrogen (N2)
Answer: a) Bicarbonate ions (HCO3-)

14. Which of the following parts of the brain regulates the respiratory process?
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
Answer: c) Medulla oblongata

15. Which of the following is a chronic respiratory disorder caused by smoking?
a) Asthma
b) Bronchitis
c) Emphysema
d) Pneumonia
Answer: c) Emphysema

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