Respiratory System

Q. Arrange the order in which oxygen enters the body and reaches the blood capillaries.

1. Nostrils
2. Windpipe
3. Bronchioles
4. Alveoli
5. Blood capillary

Q.

Write about the excretory role of the lungs?

Q.

The alveoli is a small sac-like structure present in the lungs that allows gas exchange.

1. True

2. False

Q.

Define the following:

1. Respiration
2. Photosynthesis
3. Combustion

Q. Exchange of gases like oxygen and carbon dioxide take place in the ________.

1. alveoli
2. trachea
3. nose
4. diaphram

Q.

Draw a diagram of human respiratory system and label - pharynx, trachea, lungs, diaphragm and alveolar sac on it.

Q.

In respiration, carbon dioxide is produced as a byproduct.

1. True

2. False

Q.

Which organ is a part of the respiratory system?

1. Heart

2. Kidneys

3. Lungs

4. Brain

Q.

The small sac-like structures found inside the lungs where the blood vessels are wrapped tightly around are called as ___

1. Taste buds

2. Alveoli

3. Wind pipe

Q.

Identify the respiratory system from the given images.

1. 

2. 

3. 

4. 

Q. What will happen to us if the air around us contains only carbon dioxide?

1. We will suffocate
2. We will die
3. We will not be affected
4. We will experience breathlessness

Q. Mucus traps the unwanted dust particles.

1. True
2. False

Q. How the maximum covalency of oxygen is found?

Q.

Which of the following is a flap that covers the windpipe?

1. Epiglottis

2. Appendix

3. Oesophagus

4. food pipe

Q.

The alveoli is a small sack-like structure present in the

1. digestive system

2. circulatory system

3. skeletal system

4. respiratory system

Q.

What organ shuts down first?

Q.

Identify the respiratory organ from the given images.

1. 

2. 

3. 

4. 

Q.

What is the function of the respiratory system?

Q. _____ is necessary for breathing.

1. Oxygen
2. Carbon dioxide
3. Smoke
4. Nitrogen

Q.

Define the following:

Respiration.

Q. Which of the following equation represents energy production in a cell?

1. Food+Energy $\to$ Carbon dioxide + Oxygen
2. Carbon dioxide + oxygen $\to$ Food + Energy
3. Oxygen + Food $\to$ Energy + Carbon dioxide
4. Energy + Carbon dioxide $\to$ Food + Oxygen

Q.

The alveoli is a small sack-like structure present in the ___ .

1. skeletal system

2. respiratory system

3. digestive system

4. circulatory system

Q.

The alveoli is a small sac-like structure present in the:

1. circulatory system

2. respiratory system

3. digestive system

4. skeletal system