|
Page-13 |
|||
biology |
|||
| 181)In mature mammalian ertthrocytes, the respirationis | |||
| Absent | Aerobic | ||
| Anaerobic | Sometimes aerobic and sometimes anaerobic | ||
| Answer : | |||
| |
|||
| 182)Which one of the following is not a character of respiratory surface? | |||
| Least vascular | Moist | ||
| Extensive | Thin, permeable to gases | ||
| Answer : | |||
| |
|||
| 183)Why skin of a man cannot act as respiratory organ ? | |||
| Because it is not thin | Because it is dry | ||
| Because it is not permeable to oxygen and carbondioxide | Because of all of these | ||
| Answer : | |||
| |
|||
| 184)Inspiration in cockroach is brought about by | |||
| Relaxation of tergo-sternal muscles | Relaxation of abdominal muscles and it is a passive process | ||
| Contraction of tergo-sternal muscles | Both (a) and (b) | ||
| Answer : | |||
| |
|||
| 185)Which one of the following statement in reference to insects is wrong? | |||
| Abdominal muscles have nothing to do with respiration | Relaxation of abdominal muscles draws in air through spiracles, trachea and tracheoles | ||
| Contraction of abdominal muscles drivesair out from the tracheal system through spiracles | Both (b) and (c) | ||
| Answer : | |||
| |
|||
| 186)Exchange of gases in birds occur | |||
| First in the air sacs and then in lungs | First in lungs and then in air sacs | ||
| In the lungs only and not in air sacs | Simultaneously in lungs and air sacs | ||
| Answer : | |||
| |
|||
| 187)Which of the following structures in man is analogous to the spiracles of cockroach? | |||
| Lungs | Nostrils | ||
| Branchioles | Alveoli | ||
| Answer : | |||
| |
|||
| |
|||
| 188)Conchae are located in | |||
| Bronchioles | Trachea | ||
| Nasal chambers | Ventricle | ||
| Answer : | |||
| |
|||
| 189)Another name of Adam's apple is | |||
| Thyroid cartilage | Epiglottis | ||
| Sound box in birds | Sound box in man | ||
| Answer : | |||
| |
|||
| 190)Glottis is opened in the floor of | |||
| Pharyngeal cavity | Diaphragm | ||
| Trachea | None of these | ||
| Answer : | |||
| |
|||
| 191)Ring like cartilage of larynx is known as | |||
| Cartilage of santorini | Thyroid cartilage | ||
| Arytenoid cartilage | Cricoid cartilage | ||
| Answer : | |||
| |
|||
| 192)Collapsing of trachea is prevented by | |||
| Diaphragm | Cartilaginous rings | ||
| Muscles | Ribs | ||
| Answer : | |||
| |
|||
| 193)Trachea is lined with incomplete rings of ____________ | |||
| Calcified cartilage | Fibrous cartilage | ||
| Hyaline cartilage | Elastic cartilage | ||
| Answer : | |||
| |
|||
| 194)The estimated number of alveoli in human lungs is | |||
| 200 million | 300 million | ||
| 300 billion | 400 million | ||
| Answer : | |||
| |
|||
| 195)Oblique fissure in human is present with | |||
| Left lung | Right lung | ||
| Both left and right lungs | None of these | ||
| Answer : | |||
| |
|||
 |
||