Respiratory System

Q.

Name the following:
The organs of respiratory system in humans

Q.

Label the parts of the human respiratory system. Also, write their functions. [5 MARKS]

Q.

What Is The Largest Blood Vessel In The Human Body?

Q.

The tracheal system of respiration is present in which organism?

Q.

Which one of the following statements is incorrect?

1. In insects, circulating body fluids serve to distribute oxygen to tissues
2. The principle of countercurrent flow facilitates efficient respiration in gills of fishes
3. The residual air in lungs slightly decreases the efficiency of respiration in mammals
4. The presence of non-respiratory air sacs, increases the efficiency of respiration in birds

Q.

Name the two muscles helps in breathing

Q.

How does diffusion occur in plants?

Q.

The trachea divides into two smaller tubes called ___ .

Q.

The opening and closing of the stomatal pore depends upon

1. oxygen

2. temperature

3. water in guard cells

4. concentration of carbon dioxide in stomata

Q.

Cellular respiration is a process in which food is broken down in a cell and is converted into energy.

Respiration is an example of

1. ananabolic process

2. a catabolic process

3. transportation of ions

4. excretion of ions

Q. Name any three excretory organs and also the substances excreted by the named organs.

Q.

The trachea and bronchi are provided with C-shaped cartilaginous rings which:

1. Are responsible for sound production.

2. Give them support and prevent their collapse.

3. Divide trachea and bronchi.

4. Give support to lungs.

Q.

How do we sense smell ?

Q.

Synovial Fluid Is Present In?

Q.

What is an olfactory bulb?

Q.

How the process of absorption of oxygen happens in the lungs?

Q.

Name the organ(s) in plants which participate in gas exchange.

Q.

What is the role of mucus in the respiratory tract?

1. Adds moisture to the air

2. Entraps harmful particles

3. All of these

4. Warms air

Q.

Give reasons for the following statement:

The opening of windpipe is guarded by a muscular flap.

Q.

The trachea divides into two smaller tubes called ______.

1. Mouth

2. Alveoli

3. Bronchioles

4. Bronchi

Q.

Define bronchi?

Q. Sac-like structures present in the lungs are called .

1. trachea
2. alveoli
3. bronchioles

Q. What is the function of hair on skin?

Q. Short / long answer type questions.
Draw a neat labelled diagram of human respiratory system.

Q.

The microscopic air sacs present in the lungs are called alveoli.

1. True
2. False

Q.

Where in the respiratory system would you find rings of cartilage?

1. Lungs

2. Alveoli

3. Trachea

4. Diaphragm

Q.

Assertion: Breathing rate in aquatic animals is high.

Reason: Availability of dissolved oxygen in water is high.

1. Assertion and Reason both incorrect

2. Assertion is incorrect and reason is correct

3. Assertion is correct and reason is incorrect

4. Both assertion and reason are correct

Q.

Which of these is not a function of the nasal chamber?

1. Cleaning the air

2. Gaseous exchange

3. Humidification of the inhaled air

4. Olfactory sense

Q.

What are the functions of the following in breathing?
Ribs, Diaphragm, Abdomina <!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--> [Review Questions - Pg No.149 - LAT - 5]

Q. Which of the following prevents food from entering the trachea?

1. Larynx
2. Glottis
3. Pharynx
4. Epiglottis