Multiple Choice QuestionsLungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of :
Residual Volume
Inspiratory Reserve Volume
Tidal Volume
Tidal Volume
Which of the following is an occupational respiratory disorder?
Anthracis
Silicosis
Emphysema
Botulism
B.
Silicosis
Silicosis is due to excess inhalation of silica dust in the workers involved grinding or stone breaking industries.
Long exposure can give rise to inflammation leading to fibrosis and thus causing serious lung damage.
Anthrax is a serious infectious disease caused by Bacillus anthracis. It commonly affects domestic and wild animals. Emphysema is a chronic disorder in which alveolar walls are damaged due to which respiratory surface is decreased.
Botulism is a form of food poisoning caused by Clostridium botulinum.
Match the following columns
| Column I | Column II | ||
| A. | Molecular oxygen | 1. | α-ketoglutaric acid |
| B. | Electron acceptor | 2. | Hydrogen acceptor |
| C. | Pyruvate dehydrogenase | 3. | Cytochrome - C |
| D. | Decarboxylation | 4. | Acetyl Co-A |
| A | B | C | D |
| 2 | 3 | 4 | 1 |
| A | B | C | D |
| 3 | 4 | 2 | 1 |
| A | B | C | D |
| 2 | 1 | 3 | 4 |
| A | B | C | D |
| 2 | 3 | 1 | 2 |
Penumotoxic centre which a moderate the function of the respiratory rhythm centre is present at
Pons region in brain
Thalamus
Spinal cord
Right cerebral hemisphere
The respiratory quotient during cellular respiration would depend on the
Nature of the enzymes involved
Nature of the substrate
Amount of carbon dioxide released
Amount of oxygen utilized
Ethylene is related with
Aerobic respiration
Climacteric phenomenon
Anaerobic respiration
Fermentation
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