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Free download in PDF Breathing and Exchange of Gases Short Questions with 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)
Ascent of high mountains may cause altitude sickness in men. Prime cause for this is _______
[A]
Decreased proportion of oxygen in the air
[B]
Decreased partial pressure of oxygen
[C]
Decreased efficiency of hemoglobin
[D]
Excess CO2 in blood
Answer: Decreased partial pressure of oxygen
(2)
Increased asthmatic attacks in certain seasons are related to ________
[A]
Low temperatures
[B]
Inhalation of seasonal pollens
[C]
Eating fruits preserved in containers
[D]
Hot and humid environment
Answer: Inhalation of seasonal pollens
(3)
Which of the following is a disorder in which cell division takes place without any control and causes tumor?
[A]
Bronchi cancer
[B]
Bronchioles cancer
[C]
Lung cancer
[D]
Emphysema
(4)
Strep throat is a viral infection.
(5)
Tuberculosis cannot be treated by antibiotics.
(6)
Respiration is helpful in
[A]
Removing waste from the body
[B]
Producing energy within the body
[C]
Production of proteins
[D]
Production of carbohydrates
Answer: Producing energy within the body
(7)
The surface, from which the exchange of gas takes place is called
[A]
PPlasma surfaceGA
[B]
Respiratory substrates
[C]
Respiration surface
[D]
Gaseous surface
Answer: Respiration surface
(8)
Which of the following shows pulmonary respiration
[A]
Sponge
[B]
Fishes
[C]
Coelenterate
[D]
Human
(9)
What is the upper region of pharynx called?
[A]
Oropharynx
[B]
Nasopharynx
[C]
Laryngopharynx
[D]
None of these
(10)
The trachea is supported by,cartilaginous rings,which are…………shaped
(11)
A lung contains many small balloon like air sacs called
[A]
gas spaces
[B]
alveoli
[C]
bronchi
[D]
bronchioles
(12)
Intercoastal muscles regulate the movement of
[A]
ribs
[B]
trachea
[C]
diaphragm
[D]
pharynx
(13)
Respiratory control centres are located in
[A]
lungs
[B]
medulla oblongata
[C]
spinal cord
[D]
ribs
Answer: medulla oblongata
(14)
The deoxygenated blood from heart comes to the lungs by
[A]
pulmonary artery
[B]
pulmonary vein
[C]
bronchial artery
[D]
renal vein
(15)
The metal ion present in haemoglobin is
[A]
iron
[B]
magnesium
[C]
copper
[D]
zinc
(16)
How much fraction of oxygen is transported to tissues through RBCs?
[A]
100%
[B]
56%
[C]
45%
[D]
97%
(17)
H2CO3 is converted into CO2 and H2O with the help of an enzyme known as
[A]
carboxylase
[B]
carbonicenhydrase
[C]
carbonic anhydrase
[D]
carbonic dehydrogenase
Answer: carbonic anhydrase
(18)
The largest amount of CO2 is transported in blood as
[A]
carbamino compounds
[B]
bicarbonates
[C]
carbonic acid
[D]
carbonate ions
(19)
Chloride back-shiftis associated with the transport of
[A]
carbamino
[B]
CO2
[C]
oxygen
[D]
water
(20)
Bronchitis is a
[A]
bacterial infection
[B]
viral infection
[C]
protozoan infection
[D]
fungal infection
Answer: bacterial infection
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