MCQ'S of Chapter 14 "Respiration" Biology class 12
Class 12 Biology "Respiration" MCQ'S provided below. MCQ'S of chapter 14 "Respiration" are an important part of exam , if practiced properly can help you to get higher marks. Refer more chapter wise MCQ'S for class 12 Biology.
Students should refer the following MCQ'S with answers for chapter "14 Respiration" of class 12 for exams. This MCQ'S will come in exams and help you to get good marks.
Chapter 14 "Respiration" MCQ'S Question Class 12 With Answers.
1. For effective diffusion the respiratory surface must have the following properties:
A. It must be permeable
B.It must be thin
C. It should possess a good blood supply
D. All of these
Correct option is: D (All of these)
2. Respiratory system consist of:
A. Nasal cavities, larynx, trachea, bronchi
B. Nasal cavities , trachea, larynx, bronchi
C. Nasal cavities, larynx, bronchi trachea
D. Nasal cavities, bronchi, larynx, trachea
Correct option is: A (Nasal cavities, larynx, trachea, bronchi)
3. The external feature of a nose depends upon the cartilages and the ___________.
A. Vomer
B. Ethmoid bone
C. Clavicle bone
D. Occipital bone
Correct option is: B (ethmoid bone)
4. What is the function of mucus and cilia inside the nostrils?
A. Filter the air
B. Prevent the entry of foreign particles
C. Helps in moistening the air
D. All of these
Correct option is: D (All of these)
5. Inside the nostrils, underneath the mucus membrane, there are blood capillaries that help to warm the air to about ______.
A. 20 °C
B. 30 °C
C. 40 °C
D. 60 °C
Correct option is: B (30 °C)
6. The pharynx is part of which systems?
A. Digestive and respiratory system
B. Respiratory and circulatory system
C. Only respiratory system
D. All of these
Correct option is: A (Digestive and respiratory system)
7. How many alveoli are present in lungs?
A. Over 100 million
B. Over 200 million
C. Over 700 million
D. Over 50 million
Correct option is: C (over 700 million)
8. Alveoli represent total surface of lungs:
A. 10-20 m
B. 40-50m
C. 50-90m
D. 70-90m
Correct option is: D (70-90).
9. The right lung represents ______% of the total lung volume.
A. 10%
B. 90%
C. 56%
D. 86%
Correct option is: C (56%)
10. In which part of the respiratory system, gaseous exchange takes place?
A. Alveoli
B. Pharynx
C. Larynx
D. Trachea
Correct option is: A (Alveoli)
11. Special cells in the alveolus wall secret chemical insides the alveolus:
A. Surfactants
B. Oxygen
C. Enzyme
D. None of these
Correct option is: A (Surfactant)
12. Each lung is surrounded by a thin membrane called :
A. Pleural membrane
B. Pericardium
C. Perichondrium
D. Periosteum
Correct option is: A (Pleural membrane)
13. Which of the following statement is wrong about the trachea?
A. Has C-shaped rings
B. It is covered by epiglottis
C. It splits into the right and left lungs
D. None of the above
Correct option is: B (It is covered by epiglottis).
14. Which one of the following is the function of the trachea?
A. Gaseous Exchange
B. Filters the air we breathe
C. Exhales the air from the body
D. Inhale the air from the environment
Correct option is:B (Filter the air we breathe)
15. What is the other name of windpipe?
A. Larynx
B. Lungs
C. Trachea
D. Oesophagus
Correct option is: C (Trachea).
16. Which of the following parts of the brain regulates the respiratory process?
A. Cerebrum
B. Cerebral peduncle
C. Medulla oblongata
D. Cerebellum
Correct option is: D (Cerebellum)
17. The average adult human has a lung capacity of approximately___________.
A. 2 Litres
B. 5 Litres
C. 10 Litres
D. 12 Litres
Correct option is: B (5 Litres).
18. The volume of air exchange during one breath in and out in quite breathing is:
A. Tidal volume
B. Residual volume
C. Lung volume
D. None of these
Correct option is: A (Tidal volume).
19. Tidal volume is about __________.
A. 100 ml
B. 300 ml
C. 500 ml
D. 800 ml
Correct option is: C (500 ml).
20. Residual volume is the volume of air remaining in the lungs even after a possible expiration, this is about _______.
A. 10 Litres
B. 5.1 Litres
C. 2.5 Litres
D. 1.5 Litres
Correct option is: D ( 1.5 litres )
➡️For more mcq's visit the blog plus click the following link for more mcq's of Respiration or Respiratory system.
Part: 2
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https://zoologyandbiology.blogspot.com/2023/10/biology-most-important-60-mcqs-of.html
Part : 3
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https://zoologyandbiology.blogspot.com/2023/10/biology-most-important-60-mcqs-of_20.html
Part: 4
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https://zoologyandbiology.blogspot.com/2023/10/biology-class-12-mcqs-of-respiratory.html
Part : 5
https://zoologyandbiology.blogspot.com/2023/10/biology-class-12-mcqs-of-respiratory_23.html
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