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Free download in PDF Breathing and Exchange of Gases Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
During inspiration the diaphragm _______
[A]
Expands
[B]
Contracts
[C]
No change
[D]
Relaxes
(2)
Respiration is a physical process and depends on the principle of diffusion.
(3)
Cramps during exercise are caused due to _______
[A]
Chemiosmosis
[B]
Glycolysis inhibition
[C]
Lactic acid fermentation
[D]
Alcohol fermentation
Answer: Lactic acid fermentation
(4)
A person can expel all the air from the lungs.
(5)
Which of the following is the product of the Krebs cycle?
[A]
ATP
[B]
NADH
[C]
FADH
[D]
All of the mentioned
Answer: All of the mentioned
(6)
Which of the following Produces maximum ATP?
[A]
Krebs cycle
[B]
Glycolysis
[C]
Fermentation
[D]
Oxidative Phosphorylation
Answer: Oxidative Phosphorylation
(7)
RQ is _____________
[A]
Ratio of CO2 produced to substrate consumed
[B]
Ratio of CO2 produced to O2 consumed
[C]
Ratio of oxygen consumed to CO2 produced
[D]
Ratio of oxygen consumed to water produced
Answer: Ratio of CO2 produced to O2 consumed
(8)
The epithelial tissues present on the inner surface of bronchioles and fallopian tubules are ________
[A]
Squamous
[B]
Ciliated
[C]
Glandular
[D]
Cuboidal
(9)
The site of respiration inside the lungs are _________
[A]
Alveoli
[B]
Diaphragm
[C]
Bronchi
[D]
Bronchioles
(10)
The number of gills present in Osteichthyes is _________
[A]
2 Pairs
[B]
5 pairs
[C]
10 pairs
[D]
12 pairs
(11)
_________ acts as air conditioners.
[A]
Nasal chambers
[B]
Larynx
[C]
Pharynx
[D]
Lungs
(12)
Finest branches of bronchial intercom are bronchioles.
(13)
What is the function of trachea?
[A]
Filters air we breathe
[B]
Releases air out of the body
[C]
Carries air to lungs
[D]
Exchange of gas
Answer: Filters air we breathe
(14)
The trachea leads to the ________
[A]
Pulmonary vessels
[B]
Esophagus
[C]
Bronchi
[D]
Bronchioles
(15)
Hyaline cartilage has a primary function of ______________
[A]
Protect thyroid
[B]
Increase the surface area
[C]
Support trachea
[D]
Connect conchae
(16)
Which of the following does not belong to conducting portion of the respiratory system?
[A]
Nose
[B]
Pharynx
[C]
Alveoli
[D]
Bronchioles
(17)
The structure which closes of larynx is _________
[A]
Epiglottis
[B]
Vocal cords
[C]
Adam’s apple
[D]
Glottis
(18)
Oxygen is carried by __________
[A]
Platelets
[B]
Leucocytes
[C]
Erythrocytes
[D]
Monocytes
(19)
In glycolysis during oxidation electrons are removed by __________
[A]
NAD+
[B]
ATP
[C]
Molecular oxygen
[D]
Glyceraldehyde-3-phoshate
(20)
RQ of fat is ____________
[A]
one
[B]
more than one
[C]
less than one
[D]
infinity
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