Breathing and Exchange of gases Set 2

All India Pre Medical Test (AIPMT)

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This set of Biology Multiple Choice Questions & Answers (MCQs) focuses on Breathing and Exchange of gases Set 2

Q1 | Which one is not viral infection
  • Vocational lung disease
  • Bronchitis
  • Asthma
  • Emphysema.
Answer: Vocational lung disease
Q2 | They respire through lungs
  • Fish
  • Cockroaches
  • Crocodiles
  • Earthworms
Answer: Crocodiles
Q3 | The muscles take part in rapid breathing
  • Muscles of rib cage
  • Muscles of neck region and abdominal region
  • Thoracic and abdominal muscles
  • Muscles of neck region and thoracic region.
Answer: Muscles of neck region and abdominal region
Q4 | Human lungs are situated in
  • Abdominal cavity
  • Thoracic cavity
  • Inside diaphragm
  • Abdominal cavity
Answer: Thoracic cavity
Q5 | Blockage in respiratory passage in humans is prevented due to the presence of
  • Epiglottis
  • Larynx
  • Alveoli
  • ‘C’ shaped cartilagenous rings.
Answer: ‘C’ shaped cartilagenous rings.
Q6 | In human beings
  • Left lung is slightly smaller
  • Left lung is slightly wider
  • Right lung is slightly smaller
  • Both lungs are of similar size.
Answer: Left lung is slightly smaller
Q7 | The left lung is slightly smaller so as
  • It is exception
  • No specific reason
  • Both A and B
  • To accommodate heart.
Answer: To accommodate heart.
Q8 | In which disease lung tissue degenerate?
  • Bronchitis
  • Pneumonia
  • Asthma
  • Emphysema.
Answer: Emphysema.
Q9 | Which is the lung disorder related to profession?
  • Silicosis
  • Emphysema
  • Pneumonia
  • Asthma
Answer: Silicosis
Q10 | This disease is due to first virus infection followed by bacterial attack
  • Asthma
  • Bronchitis
  • Emphysema
  • Allergy
Answer: Bronchitis
Q11 | The disease in which masses of undifferentiated cells formed in tracheal walls
  • Acute bronchitis
  • Emphysema
  • Lung cancer
  • Pneumonia
Answer: Lung cancer
Q12 | This disease is due lo allergens
  • Emphysema
  • Bronchitis
  • Pneumonia
  • Asthma
Answer: Asthma
Q13 | During inhalation the following activities occur
  • Area of rib cage increases, diaphragm is pulled upwards
  • Area of rib cage increases, diaphragm is pulled downward
  • Area of rib cage reduces, diaphram gets contracted
  • Area of rib cage reduces, diaphram gets relaxed.
Answer: Area of rib cage increases, diaphragm is pulled downward
Q14 | Blood transports oxygen in the form of
  • HHbO2
  • KHCO3
  • KHbO2
  • H2CO3
Answer: KHbO2
Q15 | In which three forms of CO2 is transported by blood
  • As a solution, carbamino compunds, bicarbonates
  • As a solution, carbamino proteins,KHCO3
  • As a solution, carbamino haemoglobin, NaHCO3
  • As A solution, carbamino compound H2CO3
Answer: As a solution, carbamino proteins,KHCO3
Q16 | Carbamino proteins are formed in
  • Blood plasma
  • Blood platelets
  • Blood cells
  • RBC
Answer: Blood plasma
Q17 | The centre which excites both the activities during rapid breathing is
  • Ventral respiratory center
  • Lateral respiratory center
  • Pneumotoxic center
  • Dorsal respiratory center.
Answer: Ventral respiratory center
Q18 | The function of pneumotoxic center is
  • To regulate inhalation
  • To maintain rhythmicity of respiration
  • Increases rate of ethalation
  • Does not play significant role.
Answer: To regulate inhalation
Q19 | AIDS patients are susceptible to this respiratoty disease
  • Pneumonia
  • Fibrosis
  • Emphysema
  • Asthma
Answer: Pneumonia
Q20 | The full from of Hb is
  • Hydrogen bromide
  • Henson bond
  • Hydrogen bond
  • Haemoglobin
Answer: Haemoglobin
Q21 | H.Hb is
  • H2b
  • Heavy hydrogen bond
  • Reduced bromide
  • Haemoglobin acid
Answer: Haemoglobin acid
Q22 | The enzyme carbonic anhydrase is of which type?
  • Lyases
  • reversible
  • Unidirectional
  • Isomerase.
Answer: reversible
Q23 | What is role of buffer system in blood ?
  • To maintain pH of blood plasma
  • To maintain pH of blood
  • To maintain pH of RBC
  • To maintain pH of blood platelets
Answer: To maintain pH of blood
Q24 | CO2 combines in human RBC with the which ion of haemoglobin
  • 0
  • -OH-
  • -H+
  • – COOH
Answer: 0
Q25 | On respitatory surface,KHCO3 formed in RBC reacts with
  • H.HbO2
  • CI-
  • H.Hb
  • Hb
Answer: H.HbO2
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