Respiration And Circulation Subtopics For MHT-CET
- Organs Of Respiratory Exchange
- Human Respiratory System
- Mechanism Of Respiration
- Regulation Of Breathing
- Modified Respiratory Movements
- Common Disorders Of Respiratory System
- Transportation In Living Organism
- Circulation In Animals
- Circulatory System In Humans
- Human Heart
- Working Mechanism Of Heart
- Regulation Of Cardiac Activity
- Blood Vessels
- Blood Pressure
- Electrocardiogram
- Lymphatic System
Multiple Choice Questions For Biology MHT-CET
Q1. Gaseous exchange in woody flowering plants occurs through:
A. Lenticels
B. Vestibule
C. Stomata
D. Spiracles
Correct Answer:(B)
Q2. In sponges and coelenterates, gaseous exchange takes place:
A. Gills
B. Tracheal tubes
C. Plasma membrane
D. Book lungs
Correct Answer:(C)
Q3. _________ use their body surfaces for gaseous exchange.
A. Flatworms
B. Salamanders
C. Arthropods
D. Turtles
Correct Answer:(A)
Q4. Which of the following respire through tracking tubes ?
A. Fish
B. Flatworms
C. Insects
D. Amphibians
Correct Answer:(C)
Q5. Spiders and scorpions respire through:
A. Cloaca
B. Book gills
C. Book lungs
D. Lungs
Correct Answer:(C)
Q6. Respiration in tadpoles occur through:
A. External gills
B. Spiracles
C. Tracheal tubes
D. Cloaca
Correct Answer:(A)
Q7. Aquatic arthropods use ________ for respiration.
A. Book gills
B. Tracheal tubes
C. Spiracles
D. Book lungs
Correct Answer:(A)
Q8. Reptiles, birds and mammals respire through ______ as an adaptation for terrestrial life.
A. Lungs
B. Gills
C. Trachea
D. Book gills
Correct Answer:(A)
Q9. The respiratory system brings about:
A. Inspiration
B. Expiration
C. Exchange of gases
D. All of these
Correct Answer:(D)
Q10. ________ is a part of upper respiratory system.
A. Bronchiole
B. Trachea
C. Larynx
D. Nasal cavity
Correct Answer:(D)
Q11. The lower respiratory system refers to:
A. Larynx and trachea
B. Bronchi, bronchioles
C. Lungs
D. All of these
Correct Answer:(D)
Q12. Nostrils are:
A. External nares
B. Internal nares
C. Vestibules
D. Nasal cavities
Correct Answer:(A)
Q13. Nasal cavity is divisible into right and left chambers by:
A. Oropharynx
B. Mesethmoid cartilage
C. Glottis
D. Epiglottis
Correct Answer:(B)
Q14. The proximal part of nostrils is:
A. Vestibule
B. Respiratory part
C. Olfactory part
D. Sensory chamber
Correct Answer:(A)
Q15. Which of the following part of nasal chamber warms the air and makes it moist?
A. Vestibule
B. Respiratory part
C. Sensory part
D. External nares
Correct Answer:(B)
Q16. ________ is also known as sensory chamber.
A. Vestibule
B. Respiratory part
B. Respiratory part
C. Olfactory chamber
D. Conditioning chamber
Correct Answer:(C)
Q17. The number of tonsils is humans are:
A. 2
B. 5
C. 6
D. 8
Correct Answer:(B)
Q18. ________ is known as windpipe.
A. Lungs
B. Trachea
C. Pharynx
C. Pharynx
D. Vestibule
Correct Answer:(B)
Q19. Terminal bronchioles and into:
A. Primary bronchioles
B. Bronchi
C. Tertiary bronchioles
D. Alveoli
Correct Answer:(D)
Q20. Lungs are located in:
A. Thoracic cavity
B. Abdominal cavity
C. Pelvic cavity
D. Coelomic cavity
Correct Answer:(A)
Q21. Outer pleural layer is:
A. Visceral
B. Parietal
C. Pulmonary
D. thoracic
Correct Answer:(B)
Q22. Each lung has the terminal bronchioles which end in______ alveoli.
A. 2-3
B. 5-6
C. 10-12
D. 20-30
Correct Answer:(C)
Q23. Alveolar wall is made up of __________ epithelium resting on a basement membrane of connective tissue.
A. Ciliated
B. Squamous
C. Columnar
D. Cuboidal
Correct Answer:(B)
Q24. There are about ________ alveoli in lungs which provide surface area for exchange of gases.
A. 200
B. 5 thousands
C. 60 lakhs
D. 700 million
Correct Answer:(D)
Q25. __________ is a muscular septum that separates the thoracic and abdominal cavity.
A. Diaphragm
B. Epiglottis
C. Glottis
D. Trachea
Correct Answer:(A)
Q26. The process by which gaseous exchange takes place between the atmosphere and the lungs is:
A. Breathing
B. External respiration
C. Internal respiration
D. Cellular respiration
Correct Answer:(A)
Q27. During inspiration, __________ becomes flat.
A. Sternum
B. Ribs
C. Lungs
D. Diaphragm
Correct Answer:(D)
Q28. During inspiration, the sternum moves:
A. Upward
B. Inward
C. Downward and inward
D. Upward and outward
Correct Answer: (D)
Q29. Volume of thoracic cavity _______ during inspiration.
A. Increases
B. Decreases
C. Remains constant
D. Initially decreases and then increases
Correct Answer: (A)
Q30. The partial pressure of Co2 of blood entering the pulmonary capillaries is _______ mmHg.
A. 20
B. 45
C. 80
D. 95
Correct Answer: (B)
Q31. ppCO2 in alveolar air is ______ mmHg.
A. 30
B. 40
C. 90
C. 90
D. 100
Correct Answer: (B)
Q32. Tidal volume is:
A. 200 ml
B. 500 ml
C. 1500 ml
D. 1000 ml
Correct Answer: (B)
Q33. Inspiratory reserve volume is about:
A. 500 ml
B. 1000 to 1100 ml
C. 2000 to 3000 ml
D. 4100 to 4500 ml
Correct Answer: (C)
Q34. The maximum volume of air that is expired during forced breathing after normal expiration is :
A. Tidal volume
B. Expiratory reserve volume
C. Residual volume
D. Inspiratory reserve volume
Correct Answer: (B)
Q35. Residual volume is about:
A. 500 to 1000 ml
B. 1100 to 1200 ml
C. 2000 to 3000 ml
D. 4000 to 4500 ml
Correct Answer: (B)
Q36. ______ % of O2 is bound to haemoglobin present in RBCs.
A. 3
B. 27
C. 53
D. 97
Correct Answer: (D)
Q37. Oxyhaemoglobin is transported from lungs to the:
A. Tissues
B. Alveoli
C. Bronchi
D. Bronchioles
Correct Answer: (A)
Q38. Affinity of haemoglobin for carbon monoxide is about _______ times more, than for oxygen.
A. 10
B. 100
C. 250
D. 500
Correct Answer: (C)
Q39. _______ % of CO2 is transported in a dissolved form as carbonic acid.
A. 7
B. 30
C. 50
D. 70
Correct Answer: (A)
Q40. Approximately ___________ % of carbon dioxide released by tissue cells diffuses into the plasma and then into RBCs.
A. 7
B. 10
C. 30
D. 70
Correct Answer: (D)
Q41. _________ is the last step that place inside the cell where food is oxidized and ATP is generated.
A. External respiration
B. Internal respiration
C. Cellular respiration
D. Inspiration
Correct Answer: (C)
Q42. Respiration is controlled by neurons located in:
A. Pons
B. medulla
C. Cerebrum
D. Both (A) and (B)
Correct Answer: (D)
Q43. Pneumotaxic center is located in:
A. Medulla
B. Pops
C. Cerebrum
D. Cerebellum
Correct Answer: (B)
Q44. Hering-Breuer reflex controls :
A. Heart rate
B. Cellular respiration
C. Rhythm of respiration
D. Body equilibrium
Correct Answer: (C)
Q45. Which of the following is/are modified respiratory movement/s ?
A. Coughing
B. Hiccupping
C. Yawning
D. All of these
Correct Answer: (D)
Q46. Emphysema is characterized by:
A. Breakdown of alveoli
B. Inflammation of trachea
C. Constriction of bronchioles
D. Inflammation of larynx
Correct Answer: (A)
Q47. The respiratory disorder emphysema is caused due to:
A. Smoking or air pollution
B. Bacterial infection
C. Viral infection
D. Allergy to some foods
Correct Answer: (A)
Q48. Long term exposure to dust containing silicon compounds causes:
A. Sinusitis
B. Silicosis
C. Laryngitis
D. Emphysema
Correct Answer: (B)
Q49. Artificial ventilation is also called as:
A. Artificial respiration
B. Cellular respiration
C. External respiration
D. Internal respiration
Correct Answer: (A)
Q50. Single circulation occurs in:
A. Fishes
B. Tigers
C. Molluscs
D. Birds
Correct Answer: (A)
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