Breathing and Exchange of gases Set 4

All India Pre Medical Test (AIPMT)

Practice Mode Previous Next
On This Page

This set of Biology Multiple Choice Questions & Answers (MCQs) focuses on Breathing and Exchange of gases Set 4

Q1 | Trachea is lined with incomplete rings of (D.P.M.T.1996)
  • Fibrous cartilage
  • Calcified cartilage
  • Elastic cartilage
  • Hyaline cartilage
Answer: Hyaline cartilage
Q2 | Oxygen and carbon dioxide are transported in blood through (CB.S.E.1996)
  • Platelets and corpuscles
  • RBCs and WBCs
  • WBCs and serum
  • RBCs and plasma
Answer: RBCs and plasma
Q3 | About 1500 ml of air left in lungs is called (CB.S.E.1996)
  • Tidal volume
  • Inspiratory reserve volume
  • Residual volume
  • Vital capacity
Answer: Residual volume
Q4 | Which one protects the lungs? (B.H.U.1990)
  • Ribs
  • Vertebral column
  • Sternum
  • All the above
Answer: All the above
Q5 | Which one has the lowest value?
  • Tidal volume
  • Vital capacity
  • Inspiratory reserve volume
  • Expiratory reserve volume
Answer: Tidal volume
Q6 | A child was killed through asphyxiation. Post morturm confirmed it because a piece of lung put in water (M.P.PMT.1996)
  • Settled dowm
  • Kept floating
  • Had blood spots
  • None of the above
Answer: Kept floating
Q7 | A molecule of haemoglobin carries how many oxygen molecules ((M.P.P.M.T.1997,Tamil Nadu 2001,C.F.M.T.2002,J.CM.E.E.2004)
  • 1
  • 2
  • 3
  • 4
Answer: 4
Q8 | In carbon monoxide poisoning there is (A.F.M.C 1997)
  • Increase in carbon dioxide concentration
  • Decrease in oxygen availability
  • Decrease in free haemoglobin
  • None of the above.
Answer: Decrease in free haemoglobin
Q9 | Exchange of gases in lung alveoli occurs through (CB.S.E.1998,A.FMC.2002)
  • Active transport
  • Osmosis
  • Simple diffusion
  • Passive transport
Answer: Simple diffusion
Q10 | Haemoglobin is (CB.S.E.1999)
  • Vitamin
  • Skin pigment
  • Blood carrier
  • Respiratoy pigment
Answer: Respiratoy pigment
Q11 | Vocal cords occur in
  • Pharynx
  • Larynx
  • Glottis
  • Bronchial tube
Answer: Larynx
Q12 | The cells which do not respire (A.FMC.2001)
  • Epidermal cells
  • Sieve cells
  • Cortical cells
  • Erythocytes
Answer: Erythocytes
Q13 | Hiccough (hiccup) is due to activity of (Manipal 2001)
  • Intercostal muscles
  • Food in air tract
  • Diaphragm
  • Inadequate oxygen in environment
Answer: Diaphragm
Q14 | Bicarbonate formed inside erythrocytes moves out to plasma while chloride of plasma pass into erythrocytes.The phenomenon is called (Kerala 2001,2003)
  • Bicarbonate shift
  • Carbonation
  • Hamburger phenomenon
  • None of the above
Answer: Hamburger phenomenon
Q15 | Respiratory centre of brain is stimulated by (A.I.I.M.S 2000)
  • Carbon dioxide content in venous blood
  • Carbon dioxide content in arterial blood
  • Oxygen content in venous blood
  • Oxygen content in arterial blood
Answer: Oxygen content in arterial blood
Q16 | A higher CO2 concentration of blood causes (AM U.2001)
  • Slow diffusion of co2 from blood
  • Slow transport of CO2 from blood
  • Slow diffusion of o2 from blood
  • Both A and B
Answer: Slow diffusion of o2 from blood
Q17 | Gases diffuse over the respiratory surface because of (Manipal 2002)
  • O2 is more in alveoli than in blood
  • O2 is more in blood than in tissues
  • CO2 is more in alveoli than in blood
  • PCO2 is more in blood than in tissues
Answer: O2 is more in alveoli than in blood
Q18 | Dissociation curve of O2 (which is dissociation from Hb) shifts to the rights....
  • O2 concentration decrease
  • CO2 concentration decreases
  • CO2 concentration increase
  • Chloride concentration increases
Answer: CO2 concentration increase
Q19 | Thoracic cage of man is formed of (M.P.P.M.T.2002)
  • Ribs and sternum
  • Ribs,sternum and thoracic vertebrae
  • Ribs,sternum and lumbar vertebrae
  • Ribs and thoracic vertebrae.
Answer: Ribs,sternum and thoracic vertebrae
Q20 | Vital capacity of lung is equal to (Karnataka 2002)
  • IRV+ERV+TV
  • IRV+ERV+TV-RV
  • IRV+ERV+TV+RV
  • IRV+ERV
Answer: IRV+ERV+TV
Q21 | Dead space is (Manipal 2003)
  • Upper respiratory tract
  • Nasal chambers
  • Alveolar space
  • Lower respiratory tract.
Answer: Upper respiratory tract
Q22 | Carbon monoxide contained in Tobacco smoke (A.I.E.E.E.2003)
  • Is carcinogenic
  • Causes gastric ulcers
  • Reduces oxygen carrying capacity of blood
  • Raises blood pressure
Answer: Reduces oxygen carrying capacity of blood
Q23 | What is correct ? (Orissa 2003)
  • Pulomonary ventilation is equal to alveolar ventilation
  • Alveolar ventilation is less than pulmonary ventilation
  • Alveolar ventilation is more than pulmonary ventilation
  • Both are variable.
Answer: Alveolar ventilation is less than pulmonary ventilation
Q24 | Increase in CO2 concentration shall cause (CB.S.E.2004)
  • Slower and shallower breathing
  • Slower and deeper breathing
  • Faster and deeper breathing
  • No effect on breathing
Answer: Faster and deeper breathing
Q25 | SARS is caused by a variant of (A.I.I.M.S 2004)
  • Pneumococcus pneumonia
  • Common cold by Corona virus
  • Asthma
  • Bronchitis
Answer: Common cold by Corona virus
Previous Next