Breathing and Exchange of gases Set 5

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 5

Q1 | During inspiration (J.I.PME.R.2004,Orissa 2005,R.PMT.2005)
  • Diaphragm and external muscles relax
  • Diaphragm and internal intercostal muscles relax
  • Diaphragm and external intercostal muscles contract
  • Diaphragm and internal intercostal muscles contract.
Answer: Diaphragm and external intercostal muscles contract
Q2 | Mountain sickness at high altitude is due to (C.P.M.T.2005)
  • Excess co2 in blood
  • Decreased CO2 in air
  • Decreased partial pressure of oxygen
  • Decreased efficiency of haemoglobin
Answer: Decreased partial pressure of oxygen
Q3 | Capacity of human lungs for air in a healthy person is (Orissa 2005)
  • 3000 ml
  • 1500 ml
  • 1000 ml
  • 500 ml
Answer: 3000 ml
Q4 | Rate of breathing is controlled by
  • Amount of freely avilable oxygen
  • Carbon dioxide in blood
  • Muscular functions of body
  • All the above
Answer: Carbon dioxide in blood
Q5 | During strenous exercise,glucose is converted into (B.H.U.2005)
  • Glycogen
  • Pyravic acid
  • Starch
  • Lactic acid
Answer: Lactic acid
Q6 | How much pulmonary air is expired normally (Har.P.M.T.2005)
  • 70%
  • 20%
  • 25%
  • 32%
Answer: 32%
Q7 | Which is incorrect ? (C.B.S.E.2006)
  • Presence of nonrespiratory air sacs increases efficinency of respiration in birds
  • In insects,circulation body fluids serve to distribute oxygen to tissues
  • Principle of counter - current flow facilitates efficient respiration in gills of fishes
  • Residual air in lungs slightly decreases the efficiency of respiration in mammals
Answer: In insects,circulation body fluids serve to distribute oxygen to tissues
Q8 | Percenatage of oxygen being carried by blood plasma is (Orissa 2006)
  • 6-9%
  • 3-6%
  • 2-3%
  • 1-2%
Answer: 2-3%
Q9 | Column I represents diseases and column II represents their symptoms. Which of the following pairs are correct match for them (Guj.CE.T.2006) ColumnI ColumnII(P) Asthma (i) Recurring of bronchitis(Q) Emphysema (ii) Accumulation of W.B.CS in alveolus(R) Pneumonia (iii) Allergy(a) P = iii, Q = ii, R = i (b) P = iii, Q = i, R = ii(c) P = ii, Q = iii, R = i (d) P = ii, Q = i, R = iii
  • P - ii , Q - iv , R - i , S - iii
  • P - ii , Q - i , R - iii , S - iv
  • P - iv , Q - ii , R - iv , S - iii
  • P - iv , Q - i , R - iii , S - ii
Answer: P - ii , Q - i , R - iii , S - iv
Q10 | :- Make the correct pairs.
  • Pneumonia
  • Bronchitis
  • Emphysema
  • Asbetosis
Answer: Asbetosis
Q11 | :- What is indicated by A and B respectivity in the figure?
  • Trachea and Pharynx
  • Larynx and Pharynx
  • Nasal chamber and Trachea
  • Bronchus and Pharynx
Answer: Larynx and Pharynx
Q12 | :- Where the A and B parys, Labeled in given figure are ended?
  • Bronchus and Lungs
  • Bronchioles and Lungs
  • Trachea and Bronchioles
  • Bronchus and Alveoli
Answer: Trachea and Bronchioles
Q13 | :- What is indicated by “A” in figure ?
  • Alveoli
  • Lungs
  • Heart
  • Trachea
Answer: Heart
Q14 | :- Make the correct pairs.Columan-I Column-II(a) Bronchus i. Give passage to air toward alveoli(b) Alveoli ii. Give passage to air toward lung(c) Bronchioles iii. Give passage to air toward bronchus(d) Trachea iv. Perform exchange of air
  • P - ii , Q - iii , R - iv , S - i
  • P - i , Q - iv , R - ii , S - iii
  • P - ii , Q - iv , R - i , S - iii
  • P - i , Q - iii , R - ii , S - iv
Answer: P - ii , Q - iv , R - i , S - iii
Q15 | Approximately how many cells are present in the body of an adult person ?
  • 1014
  • 1015
  • 1018
  • 1021
Answer: 1014
Q16 | The period between two successive cell divisions in called........
  • Duplication
  • Growth phase
  • Cell cycl
  • Interphase
Answer: Cell cycl
Q17 | Which is fundamental property of all living organisms ?
  • Respiration
  • Germination
  • Growth
  • Photosynthesis
Answer: Growth
Q18 | The two chromatids of a metaphase chromosome represents :
  • homologous chromosome of a diploid set
  • replicated chromosomes to be separated at anaphase
  • non-homologous joined at the centromere
  • maternal and paternal chromosomes joined at the centromere
Answer: replicated chromosomes to be separated at anaphase
Q19 | With how many cell reproduction starts ?
  • Two cell
  • Single cel
  • Many cells
  • Somatic cell
Answer: Single cel
Q20 | Which of the following is present in maximum number in an adult person ?
  • Somatic cell
  • Gamete
  • Reproductive cell
  • Zygote
Answer: Somatic cell
Q21 | What is synthesized during G2 – phase ?
  • Protein
  • Micro tubules
  • RNA
  • (a) and (b)
Answer: (a) and (b)
Q22 | Synthesis of RNA and protein takes place in which phase of the cell cycle ?
  • S-phase
  • M-phase
  • G1-phase
  • Metaphase
Answer: G1-phase
Q23 | During which phase can nucleolus be observed clearly ?
  • Metaphase-II
  • Early Prophase
  • Anaphase
  • Metaphase
Answer: Early Prophase
Q24 | Which structure can be observed at the surface of centromere during metaphase ?
  • Kinetochore
  • Chromatophore
  • Kinetophore
  • Chromatophore
Answer: Kinetochore
Q25 | Mitosis actually means……
  • Reduction in number of chromosomes
  • Division of nucleus only
  • Division of cytoplasm only
  • Both nuclear (Karyokinesis) and cytoplasmic divisions.
Answer: Both nuclear (Karyokinesis) and cytoplasmic divisions.
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