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Human Respiration

1. Describe the human respiratory system.

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Human Respiration

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  1. CONTACT: 9821131002/9029004242 Respiration INFOMATICA ACADEMY Human Human Respiration  EXERCISE 1.Describe the human respiratory system. 2.Describe the process of respiration in human being. 3.Describe the histological structure of lungs. OR Write a note on the histology of lungs. 4.How does transport of O2 and CO2 take place in man? OR Explain the transport of respiratory gases O2 and CO2 through external respiration. 5.Describe the respiratory disorders. 6.Write Short notes on – a) Alveoli c) Larynx b) Trachea d) Silicosis e) Asbestosis OR What are occupational lung diseases? Give a few examples of occupational lung disease. 7.Differentiate between a)Pharynx and Larynx. b)Inspiration and Expiration c)Transport of O2 and Transport CO2 8.Draw well labelled diagrams of a)Human Respiratory system. b)Structure of alveoli 9.Name the sound producing organ of human being. 10.In which form, major part of CO2 is transported in the blood. 11.Name any two disorders of respiratory system. 12.Name the structural and functional unit of lungs. 13.Name the energy currency of cell 14.Define respiration. Give the equation to represent the process of respiration. 15.How respiratory organ, blood and the body cells are involved in respiration? 16.Name some organisms where cutaneous respiration takes place. 17.Give an account of respiratory organs from lower organisms to higher organisms. 18.Write a note on gills. 19.Enlist various parts in human respiratory pathway. 20.What is epiglottis? 21.Name the peritoneal covering of the lung. 22.Name the respiratory surface in the human lung. F.Y.J.C. Science 81 Human Respiration

  2. CONTACT: 9821131002/9029004242 INFOMATICA ACADEMY 23.What prevents collapsing of our trachea during breathing? 24.Describe the structure of lungs with the help of neat labelled diagram. 25.Write the names of respiratory organs present in human beings. 26.Diffusion of gases occurs in the alveolar region only and not in other parts of respiratory system why? 27.Describe how exchange of gases takes place in lungs. 28.Distinguish between right and left lungs. 29.Explain the process of inspiration under normal conditions. 30.Name the respiratory muscles of man. 31.Which part of our brain controls breathing? 32.How breathing is regulated? OR Breathing is controlled by which part of the brain? 33.Name the various events involved in the transport of respiratory gases. 34.Write a note on internal respiration. 35.Write a note on cellular respiration. 36.Differentiate external and internal respiration. 37.Give reasons: 1.Breathing by mouth is harmful. OR It is desirable to breath only through nose. 2.The lungs are covered by a double layered membrane. 38.How is respiration regulated? OR Explain the role of neural system in regulation of respiration. 39.Define the following: i. Tidal Volume (TV) ii. Inspiratory Reserve Volume (IRV) iii. Expiratory Reserve Volume (ERV) iv. Residual Volume (RV) v. Vital Capacity 40.What is tidal volume? Find out the tidal volume (approximate value) for a healthy human in an hour time. 41.State the volume of air remaining in the lungs after a normal breathing. 42.Define vital capacity. What is its significance? 43.Distinguish between IRV and ERV. 44.Write a note on carbon monoxide poisoning. 45.What is asthma? 46.Write a note on emphysema. F.Y.J.C. Science 82 Human Respiration

  3. CONTACT: 9821131002/9029004242 INFOMATICA ACADEMY  MULTIPLE CHOICE QUESTION 1.Coverings of the lungs are called (A) meninges (B) pleura (C) ciliary lining (D) peritoneum 2.Through which of these parts air never passes during respiration in man? (A) bronchi (B) diaphragm (C) trachea (D) larynx 3.Most of the O2 is carried in man (A)in solution form in plasma (C) as bound form to haemoglobin (B)as bicarbonates (D) as carbamino-haemoglobin 4.Cartilage is absent in (A) trachea (B) bronchus (C) bronchioles (D) pharynx 5.Diaphragm in mammals is a (A)cartilaginous structure (C) membranous structure (B)bony structure (D) muscular structure 6.Respiration takes place in (A)Golgi body (C) mitochondria (B)endoplasmic reticulum (D) nucleus 7.Respiration involves (A) oxidation (C) both (A) & (B) (B) reduction (D) none of these 8.In man the chief respiratory organs are (A) Skin (B) Gills (C) Lungs (D) Nostrils 9.In human beings, oxygen carrying respiratory pigment is (A) haemocyanin (B) haemoglobin (C) chloroquinin (D) haemoerythrin 10.The rate of respiration is controlled in (A) brain (B) heart (C) both (A) & (B) (D) none of these 11.The mechanism of exchange of 02 is by (A) diffusion (B) chloride shift (C) both (A) & (B) (D) none of these 12.Alveoli in lungs are internally lined by (A)cuboidal epithelium (C) squamous epithelium (B)ciliated epithelium (D) glandular epithelium 13.The steps in breathing are (A)inspiration and expiration (C) inhalation and inspiration (B)contraction and relaxation (D) none of these 14.In die tertiary bronchioles the covering does not have (A)tracheal rings (C) epithelial tissue (B)connective tissue (D) both (A) & (B) F.Y.J.C. Science 83 Human Respiration

  4. CONTACT: 9821131002/9029004242 INFOMATICA ACADEMY 15.On dorsal side cartilagenous rings of trachea are (A) incomplete (B) complete (C) calcified (D) extra thick 16.The correct sequence of conduction of air in respiratory system is (A)nasal cavity, pharynx, larynx and bronchi (B)larynx, trachea, bronchi and nasal cavity (C)nasal cavity, pharynx, larynx, trachea and bronchi (D)nasal cavity, larynx, pharynx, trachea and bronchi 17.A dual organ is (A) trachea (B) bronchus (C) pharynx (D) larynx 18.Nasal chamber is divided into two parts by (A) Sphenoid (B) Palatine (C) Mesethmoid (D) Zygomatic 19.Adam’s apple is the name given to (A) pharynx (B) larynx (C) trachea (D) bronchus 20.The left lung is divided into (A) 3 lobes (B) 2 lobes (C) 4 lobes (D) 6 lobes 21.Glottis is the opening present in between (A)pharynx and larynx (C) laryngopharynx and larynx (B)trachea and larynx (D) nasal passage and pharynx 22.Volume of air inspired and expired during normal breathing is called as (A) respiration (C) tidal volume (B) vital capacity (D) residual volume 23.Exchange of O2 and CO2 from the blood into tissue takes place through (A) plasma (B) lymph (C) RBC’s (D) directly 24.The right lung of man is divided into (A) 2 lobes (B) 3 lobes (C) 4 lobes (D) 5 lobes 25.The tracheal lining is ciliated. Cilia help in (A)Inspiration (C) pushing mucus out (B)Expiration (D) pushing mucus in 26.One of the following statements is correct. (A)Gullet is the opening of trachea in pharynx. (B)Gullet is the opening of oesophagus in the pharynx. (C)Glottis is the opening of oesophagus in the pharynx. (D)Glottis is the opening of Eustachian tube. 27.Cellular respiration occurs in (A) RBCs (C) cells of the body (B) alveoli (D) blood vessels F.Y.J.C. Science 84 Human Respiration

  5. CONTACT: 9821131002/9029004242 INFOMATICA ACADEMY 28.Transport of CO2 is in the form of (A) sulphates (B) phosphates (C) carbonates (D) chlorides 29.Transport of O2 is done by (A) plasma (B) R.B.C (C) lungs (D) nostrils 30.Respiration taking place : in the lungs is called (A)Internal respiration (C) Cellular respiration (B)External respiration (D) Tissue respiration 31.In asthma, what causes respiratory distress? (A)spasm of bronchial muscles. (B)excessive, thick mucous secretions in the air ways. (C)inflammation of the mucosa of the respiratory tract. (D)all of the above. 32.In asthma, the main difficulty is experienced in which phase of respiration? (A)Inspiration (C) both (A) and (B) (B)Expiration (D) none of these 33.The factor, not DIRECTLY associated with Asthma is (A)emotional stress (C) air pollution (B)strenuous exercises (D) low oxygen pressure as in high altitudes 34.In occupational lung diseases, the pollutants are characterised by (A)very small size (B)cause acute inflammation (allergens) (C)large particle size so as to block the lower airways (D)can infect by person to person route 35.Silicosis is seen in all industries except (A)pottery work (C) glass industry (B)road construction (D) stone mining 36.The minimum exposure for development of Asbestosis is (A) 10 to 20 years (C) 30 to 40 years (B) 20 to 30 years (D) 40 to 50 years 37.The most common type of asbestos associated with asbestosis is (A) pink asbestos (C) white asbestos (B) blue asbestos (D) none of these F.Y.J.C. Science 85 Human Respiration

  6. CONTACT: 9821131002/9029004242 INFOMATICA ACADEMY ANSWERS TO MULTIPLE CHOICE QUESTIONS 1.(B) 2.(B) 3.(C) 4.(C) 5.(D) 6.(C) 7.(A) 8.(C) 9.(B) 10.(A) 11.(A) 12.(C) 13.(A) 14.(A) 15.(A) 16.(C) 17.(C) 18.(C) 19.(B) 20.(B) 21.(A) 22.(C) 23.(B) 24.(B) 25.(C) 26.(B) 27.(C) 28.(C) 29.(B) 30.(B) 31.(D) 32.(B) 33.(D) 34.(A) 35.(B) 36.(A) 37.(B) F.Y.J.C. Science 86 Human Respiration

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