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MCQs

Total Questions : 78 | Page 4 of 8 pages
Question 31. RBCs and adipose tissue cells respire anaerobically because they ________
  1.    posses very few mitochondria
  2.    posses carbonic anhydrase
  3.    posses large amount of energy
  4.    posses less energy
 Discuss Question
Answer: Option A. -> posses very few mitochondria
Answer: (a).posses very few mitochondria
Question 32. Oxygen diffuses out of blood into tissues because __________
  1.    Oxygen concentration of tissue fluid is lower
  2.    Oxygen concentration of blood is lower
  3.    Carbon dioxide concentration of tissue fluid is lower
  4.    Carbon dioxide concentration of tissue fluid is higher
 Discuss Question
Answer: Option A. -> Oxygen concentration of tissue fluid is lower
Answer: (a).Oxygen concentration of tissue fluid is lower
Question 33. Pneumotaxic centre which can moderate the functions of the respiratory rhythm centre is present at ____________
  1.    Pons
  2.    Spinal cord
  3.    Left hemisphere
  4.    Thalamus
 Discuss Question
Answer: Option A. -> Pons
Answer: (a).Pons
Question 34. Lack of oxygen to the brain can make the person feel ___________
  1.    hyperactive
  2.    sleepy
  3.    depressed
  4.    gasping for air
 Discuss Question
Answer: Option B. -> sleepy
Answer: (b).sleepy
Question 35. Which of the following is the cofactor of carbonic anhydrase?
  1.    Zn
  2.    Fe
  3.    Mg
  4.    Cu
 Discuss Question
Answer: Option A. -> Zn
Answer: (a).Zn
Question 36. Breathing rate in human is controlled by _____________
  1.    Medulla oblongata
  2.    Cerebellum
  3.    Hypothalamus
  4.    Thalamus
 Discuss Question
Answer: Option A. -> Medulla oblongata
Answer: (a).Medulla oblongata
Question 37. Humans breathe by negative pressure.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 38. Emphysema is a ______________
  1.    Neural disease
  2.    Digestive disorder
  3.    Pulmonary disease
  4.    Renal disease
 Discuss Question
Answer: Option C. -> Pulmonary disease
Answer: (c).Pulmonary disease
Question 39. The primary stimulus for respiratory centre is ___________
  1.    Carbon dioxide and hydrogen ions
  2.    Oxygen gas level in blood
  3.    Oxygen gas level in hemoglobin
  4.    Conscious feeling for need of oxygen
 Discuss Question
Answer: Option A. -> Carbon dioxide and hydrogen ions
Answer: (a).Carbon dioxide and hydrogen ions
Question 40. The respiratory centre sends out nerve impulses to __________
  1.    Control center in brain
  2.    Diaphragm and rib cage
  3.    Carotid and aortic bodies
  4.    Muscles of the body that regulate the use of oxygen
 Discuss Question
Answer: Option B. -> Diaphragm and rib cage
Answer: (b).Diaphragm and rib cage

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