Which one of the following is not correct with regard to the harmful effects of particulate matter of the size 2.5  micrometer or less? (a) It can cause respiratory problems. (b) It can directly enter into our circulatory system. (c) It can cause inflammation and damage to the lungs. (d) It can be inhaled into the lungs.

Which one of the following is not correct with
regard to the harmful effects of particulate matter of
the size 2.5  micrometer or less?
(a) It can cause respiratory problems.
(b) It can directly enter into our circulatory system.
(c) It can cause inflammation and damage to the
lungs.
(d) It can be inhaled into the lungs.
by

1 Answer

Answer :

(b) It can directly enter into our circulatory system.
by

Related questions

Which respiratory volume is the maximum volume of air that can be inhaled after maximal expiration? a) Inspiratory reserve volume Inspiratory reserve volume is normally 3000 mL. b) Tidal volume Tidal volume is the volume of air inhaled and exhaled with each breath. c) Expiratory reserve volume Expiratory reserve volume is the maximum volume of air that can be exhaled forcibly after a normal exhalation. d) Residual volume Residual volume is the volume of air remaining in the lungs after a maximum exhalation.

Description : Which respiratory volume is the maximum volume of air that can be inhaled after maximal expiration? a) Inspiratory reserve volume Inspiratory reserve volume is normally 3000 mL. b) Tidal volume Tidal ... volume Residual volume is the volume of air remaining in the lungs after a maximum exhalation.

Last Answer : a) Inspiratory reserve volume Inspiratory reserve volume is normally 3000 mL.

Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder that cause wheezing due to (a) reduction in the secretion of surfactant by pneumocytes (b) benign growth on mucous lining of nasal cavity (c) inflammation of bronchi and bronchioles (d) proliferation of fibrous tissues and damage of the alveolar walls.

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Last Answer : (c) inflammation of bronchi and bronchioles

Identify the air pollutant in urban areas which irritates eyes and also respiratory tract of human beings. (A) Particulate matter (B) Oxides of nitrogen (C) Surface ozone (D) Carbon monoxide

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Last Answer : (C) Surface ozone

Inhaled ipratropium bromide has the following advantages except: A. It does not alter respiratory secretions B. It does not depress airway mucociliary clearance C. It has faster onset of bronchodilator action than inhaled salbutamol D. It only rarely produces systemic side effects

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Inhaled ipratropium bromide has the following advantages except: A. It does not alter respiratory secretions B. It does not depress airway mucociliary clearance C. It has faster onset of bronchodilator action than inhaled salbutamol D. It only rarely produces systemic side effects

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Last Answer : C. It has faster onset of bronchodilator action than inhaled salbutamol

A scrubber in the exhaust of a chemical industrial plant removes (a) gases like sulphur dioxide (b) particulate matter of the size 5 micrometer or above (c) gases like ozone and methane (d) particulate matter of the size 2.5 micrometer or less.

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In a patient of bronchial asthma, inhaled salbutamol produces the following effect(s): A. Inhibits antigen-antibody reaction in the lungs B. Causes bronchodilatation C. Reduces bronchial hyperreactivity D. Both ‘B’ and ‘C’ are correct

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Choose the correct statement(s) about inhaled glucocorticoids in chronic obstructive pulmonary disease (COPD): A. They are indicated in COPD only for severe/ advanced cases B. Instituted early they retard the progression of COPD C. Their use predisposes to respiratory infections D. Both 'A' and 'B

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Last Answer : A. They are indicated in COPD only for severe/ advanced cases

Which of the following statements are true of oxidants? A. In addition to their pathophysiologic roles in inflammation, injury, and infection, oxidants also have physiologic roles. B. Oxidants may be generated from activated neutrophils and during reperfusion following a period of ischemia. C. The deleterious effects of oxidants include lipid peroxidation and cell membrane damage, oxidative damage to DNA, and inhibition of adenosine triphosphate (ATP) synthesis. D. The mechanism of ischemia-reperfusion injury involved the catalytic production of superoxide anion (O 2•) by the enzyme xanthine oxidase.

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In a patient of bronchial asthma, inhaled salbutamol produces the following effect(s). (a) Inhibits antigen-antibody reaction in the lungs (b) Causes bronchodilatation (c) Reduces bronchial hyperreactivity (d) Both (b) and (c)

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Which characteristic sign of inflammation is NOT correctly associated with its cause? a. Edema—nerve damage b. Heat—blood warmth c. Swelling—fluid accumulation d. Redness—blood accumulation

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According to Central Pollution Control Board (CPCB), which particulate size in diameter (in micrometers) of the air pollutants is responsible for greatest harm to human health? (a) 1.0 or less (b) 5.2 - 2.5 (c) 2.5 or less (d) 1.5 or less

Description : According to Central Pollution Control Board  (CPCB), which particulate size in diameter (in  micrometers) of the air pollutants is responsible for  greatest harm to human health? (a) 1.0 or less (b) 5.2 - 2.5 (c) 2.5 or less (d) 1.5 or less

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According to Central Pollution Control Board (CPCB), which particulate size in diameter (in micrometers) of the air pollutants is responsible for greatest harm to human health? (a) 1.0 or less (b) 5.2 - 2.5 (c) 2.5 or less (d) 1.5 or less

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Which is not a control measure to reduce particulate matter in environment?

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The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases. (b) D - Lower end of lungs - Diaphragm pulls it down during inspiration. (c) A - Trachea - Long tube supported by complete cartilaginous rings for conducting inspired air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

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Why do brids not have respiratory trouble at the time of flying at high altitude ? (1) Their lungs are very large (2) They fly inactively (3) They have extra air sacs (4) They use less oxygen

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