Question # 1

Cutting of walls of Alveoli called:

Choose an answer

Pneumonia

Emphysema

Bronchtis

Asthama

In human and other higher animals, the exchange of gases is carried out by:

Choose an answer

Skin

Respiratory

Air passageway

Lungs

In wood seems and roots the gaseous:

Choose an answer

lenticels

epidermal cells

somata

micropyle

The major cause of lungs cancer is:

Choose an answer

nicotine

smoking

viral infection

radiation

The percentage of oxygen from air which we inspired is:

Choose an answer

15 %

21%

25%

28%

In plants, gaseous exchange takes place as:

Choose an answer

CO2 is removed and O2 is absorbed

CO2 is absorbed and O2 is removed

CO2 and O2 both are absorbed

CO2 and O2 both are removed

Where does the gaseous exchange occur in humans:

Choose an answer

Pharynx

Larynx

Trachea

Epiglottis

Percentage of CO₂ in exhaled are during breathing is:

Choose an answer

16%

4%

79%

0.04%

In which of the following disease, the patient has usually lost 50% to 70% of his/her lung tissue when symptoms appears?

Choose an answer

Pneumonia

Asthma

Emphy sema

Bronchitis

How many carciogens are present in cigarette smoke?

Choose an answer

40

50

60

70

What happens during Exhalation?

Choose an answer

Ribs muscles relax

Diaphragm become dome shaped

Pressure on lungs increased

All of these

The length of trachea is:

Choose an answer

10 cm

12 cm

22 cm

20 cm

The glottis is guarded by a flap of tissue called:

Choose an answer

Trachia

Glottis

Bronchi

Epiglottis

More Classes

Other Links

Biology 10th Class English Medium Chapter 1 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer