paper test

Student’s Name:__________________________ Class: ___________Admission No.:___________Roll No.:________

Paper: Biology                                                                                                                                       Total Marks: 20


(Gaseous Exchange)

Q.1 Choice the correct option (A.B.C.D)?     

1. In wood stems and roots, the gaseous exchange occurs through:

(a) lenticels           (b) epidermal cells           (c) stomata           (d) micropyle

2. In man, the system of gaseous exchange is:

(a) digestive system    (b) respiratory system   (c) nervous system   (d) excretory system

3. It is also called sound box:

(a) trachea            (b) larynx             (c) pharynx            (d) bronchus

4. Cartilage is absent in:

(a) trachea           (b) larynx             (c) bronchi           (d) bronchioles

5. The structural and functional unit of lungs is:

(a) trachea            (b) pharynx           (c) bronchioles             (d) alveolus

6. Lungs are enclosed in a membrane called:

(a) peritoneum            (b) pleural membrane           (c) epidermis         (d) pericardium

7. The correct list of respiratory disorders is:

(a) Asthma,emphysema,pneumonia,bronchitis (b) Asthma,pneumonia,haemophylia,typhoid 

(c) Asthma,blood cancer,emphysema,cholera(d) Asthma,cholera,emphysema,malaria

8. The uncontrolled cell divisions in lungs tissue are called:

(a) Bronchitis          (b) emphysema          (c) cancer          (d) Asthma

9. The major cause of lungs cancer is:

(a) nicotine           (b) smoking            (c) viral infection            (d) radiation

10. A disease involving the breakdown of air sacs of the lungs is:

(a) Bronchitis               (b) emphysema           (c) pneumonia          (d) asthma

Q. 2                (Short Questions)

1.What type of cartilage is present in trachea? What is its function?

2.What is a diaphragm? What is its function?

3.What is emphysema and its symptoms?

4.What are the causes of lungs cancer? 

5.How many smoking affects the circulatory system?

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