Parts of the Respiratory System

Q.

Match the parts of the heart in Column I with the direction of flow of blood in Column II
$\begin{array}{cc}ColumnI& ColumnII\\ \left(i\right)RightVentricle& \left(a\right)Pumpsdeoxygenatedbloodintothepulmonaryartery\\ \left(ii\right)PulmonaryVeins& \left(b\right)Takesdeoxygenatedblood\\ \left(iii\right)LeftAtrium& \left(c\right)Receivesbloodfromdifferentpartsof\\ & thebody.\\ \left(iv\right)PulmonaryArteries& \left(d\right)Bringoxygenatedbloodfromlungs\\ & totheheart.\\ \left(v\right)LeftVentricle& \left(e\right)Pumpsbloodintotheaorta.\\ \left(vi\right)RightAuricle& \left(f\right)Receivesdeoxygenatedbloodfromthe\\ & pulmonaryveins.\end{array}$

Q. The number of lobes present in right lung is ____, while that in left lung is _____.

1. 3, 5 respectively
2. 3, 2 respectively
3. 3, 3 respectively
4. 3, 4 respectively

Q.

In respiration, air passes through

1. Pharynx, Nasal cavity, Larynx, Trachea, Bronchi, Bronchiole, Lungs

2. Nasal cavity, Pharynx, Larynx, Trachea, Bronchi, Bronchiole, Lungs

3. Larynx, Pharynx, Trachea, Lungs

4. Larynx, Nasal cavity, Pharynx, Trachea, Lungs

Q.

What is the other name for the voice box?

1. Breathing and Respiration

2. Respiration and photosynthesis

3. Breathing and photosynthesis

4. All of these

Q.

Do Flatworms have a closed circulatory system?

Q. The right and the left lung is divided into and lobes respectively.

1. three
2. two
3. four
4. one

Q.

In an experiment to demonstrate the mechanism of breathing by using a bell jar, two balloons in the bell jar and a rubber sheet are tied to the open end of bell jar:
(a)What does the space in the bell jar represents?
(b)What do the balloons in the bell jar represent?
(c)What does the rubber sheet tied over the open end of bell jar represents?

Q. State whether the following statements are true or false.
Statement 1 - Pharynx is the common passage for food and air.
Statement 2 - The opening of the windpipe is covered by epiglottis.

1. True; False
2. False; True
3. False; False
4. True; True

Q.

Sound is produced in mammals

1. During exhalation

2. By syrinx

3. By bronchus

4. During inhalation

Q.

Which of the following is a respiratory structure for insects?

1. Gills

2. Skin

3. Lungs

4. Trachea

Q.

Name the layer that covers the lungs just like the human body is covered by the skin?

Q. When we breathe in, which organ among the following expands?

1. Heart
2. Lungs
3. Stomach
4. Kidneys

Q.

The exchange of gases $O_2$ and $C{O}_2$ in a mammal takes place in

1. Trachea

2. Bronchi

3. Bronchioles

4. Alveoli

Q.

State if the following statements are True or False. Correct the false statement.

The trachea branches into two bronchioles.

1. True
2. False

Q.

The figure above shows a model of lungs using a pair of balloons and an elastic membrane-tethered to a bottle whose wide end has been removed. When the elastic membrane is pulled, the red balloons expand. The elastic membrane represents which part of the respiratory system?

1. Lungs

2. Rib cage

3. Rib muscles

4. Diaphragm

Q.

Mucus production in nose is advantageous because it …………………………

1. It prevents loss of water

2. Helps lungs to function

3. Provides defense against microorganisms

4. All of the above

Q. Lungs are protected from outside by a membrane called as .

1. epithelial membrane
2. pleural membrane
3. visceral membrane

Q.

What is the purpose of Internal and External Respiration?

Q.

The function of hair and mucous lining in nostrils is to ___

1. Prevent entry of foreign bodies and germs

2. To warm up the air entering the lungs

3. All of the above

4. Filter inhaled air

Q.

The lining of the nasal chamber has ___ which trap germs and dust.

1. ligaments

2. mucus

3. Alveolus

4. villi

Q.

Oxygen in lungs ultimately reaches the _______.

1. Alveoli

2. Trachea

3. Bronchus

4. Bronchioles

Q.

The lining of the nasal chamber has mucus which prevents pollen and dust particles from entering into the lungs.

1. True

2. False

Q. Which amongst the following protects the lower part of the digestive tract?

1. Spine
2. Skull
3. Pelvis
4. Sternum

Q. calculate root mean square of oxygen molecue of lungs at 37 celcius

Q.

___ have hair to trap dust particles present in the air and stop them from entering our lungs.

1. Nostrils

2. Mouth

3. Ears

4. Naval

Q.

During a breathing cycle, why do lungs always contain a residual volume of air in it?

1. It helps in CO₂ release slower and O₂ transport faster.

2. It gives sufficient time for CO₂ absorption and O₂ release.

3. It gives sufficient time for O₂ absorption and CO₂ release.

4. It makes O₂ transport efficient and faster.

Q. Trace the passage of air through the respiratory tract in humans. [2 Marks]

Q.

Which option has all the organs of the respiratory system?

1. Nose, Pharynx, Bronchi, and Lungs

2. Pharynx, Larynx, Trachea, Bronchi, Nose, and Lungs

3. Nose, Pharynx, Larynx, Trachea, and Lungs

4. Pharynx, Larynx, Trachea, Bronchi, and Lungs

Q.

Name the organ in humans which produces sound.

1. Bronchioles
2. Larynx
3. Pharynx
4. Uvula

Q. Which part of the plant helps in absorption of water from the soil?

1. Flower
2. Root
3. Stem
4. Leaf