Gaseous Exchange Test 02

Total Questions: 31

1 - It remains unaffected in expired air:

A ) O2
B ) CO2
C ) N2 ✅
D ) Water vapours

2 - In developing world smoking has:

A ) Declined
B ) Risen by 5.4%
C ) No effect
D ) Risen by 3.4% ✅

3 - In young stems and leaves some gageous exchange also occurs through:

A ) Leaf petioles
B ) Cuticle ✅
C ) Leaf petioles and cuticles
D ) Mesophyll

4 - Exchange of gases occurs through lenticals in;

A ) Woody stems
B ) Mature roots
C ) Woody stems and mature roots ✅
D ) Young stems

5 - Gases diffuse by general surface in:

A ) All stems
B ) Young roots ✅
C ) All leaves
D ) Mature roots

6 - Air passageway starts from:

A ) Nose ✅
B ) Pharynx
C ) Trachea
D ) Bronchi

7 - A flap of tissue which guards glottis is:

A ) Larynx
B ) Epiglottis ✅
C ) Pharynx
D ) Ribs

8 - Temperature of expired air is:

A ) High
B ) Low
C ) Equal to the body temperature ✅
D ) Equal to external environment

9 - Cluster of pouches found in respiratory system:

A ) Bronchi
B ) Alveoli
C ) Bronchioles ✅
D ) Trachea

10 - Lungs are organs which are;

A ) Spongy
B ) Elastic ✅
C ) Spongy and elastic
D ) Tough

11 - Dusky or purplish skin colour is a symptom of:

A ) Bronchitis
B ) Emphysema
C ) Pneumonia ✅
D ) Asthma

12 - Total chemicals in tobacco smoke are:

A ) 1000
B ) 2000
C ) 3000
D ) 4000 ✅

13 - Tooth loss is _____times higher in smokers than in non-smokers.

A ) 2–5 times
B ) 1-2 times
C ) 2-3 times ✅
D ) 4-5 times

14 - Oxygen carrying capacity of haemoglobin is lessened by;

A ) Tar
B ) Carbon dioxide
C ) Nicotine
D ) Carbon monoxide ✅

15 - A powerful poison which damages brain is:

A ) Tar
B ) Nicotine ✅
C ) Carcinogen
D ) Carbon monoxide

16 - Function of pleural membrane is to:

A ) Enclose the lungs ✅
B ) Help to increase the volume of cavity during respiration
C ) Increase volume of chest
D ) Secrete to help the lungs

17 - Deoxygenated blood towards lungs is taken by:

A ) Pulmonary artery ✅
B ) Aorta
C ) Superior vena cava
D ) Pulmonary vein

18 - Asthma is caused by:

A ) Perfumes ✅
B ) Vitamin B-12 deficiency
C ) Vitamin C deficiency
D ) Vitamin K deficiency

19 - Some viral (influenza virus) and fungal infection may also lead to:

A ) Asthma
B ) Pneumonia ✅
C ) Lung cancer
D ) Emphysema

20 - A thick muscular structure present below the lungs is called:

A ) Alveolus
B ) Tracheoles
C ) Diaphragm ✅
D ) Bronchioles

21 - The main cause of lung cancer is:

A ) Smoking ✅
B ) Viral infection
C ) Bacterial infraction
D ) Both viral and bacterial infraction

23 - Rate of breathing depends upon concentration of;

A ) Oxygen
B ) Carbon dioxide ✅
C ) Nitrogen
D ) Hydrogen

25 - Which disease is not related to lungs?

A ) Pneumonia
B ) Myopia ✅
C ) Emphysema
D ) Asthma

26 - Identify the correctly matched pair:

A ) Breathing, cellular respiration
B ) Breathing, gaseous exchange ✅
C ) Gaseous exchange, cellular respiration
D ) Both b & c

27 - The major causative agent of pneumonia is:

A ) Vibrio pneumoniae
B ) Streptococcus pneumoniae ✅
C ) Influenza virus
D ) E. Coli

28 - Stomata are frequently present on:

A ) Upper side of leaf
B ) Lower side of leaf ✅
C ) Both sides of leaf
D ) Stem

29 - Which structure plays an important role for pushing the air out of lungs?

A ) Nasal cavity
B ) Bronchus
C ) Diaphragm ✅
D ) Bronchiole

30 - The respiratory center is present in:

A ) Lungs
B ) Brain ✅
C ) Nose
D ) Muscles