Respiration in Organisms Test

Result

Respiration in Organisms Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

Which gas in the air helps in the breakdown of carbohydrates in the cells?

A
Carbon dioxide

B
Nitrogen

C
Oxygen

D
Argon

Solution

Carbohydrates in the cells are broken down by oxygen to give carbon dioxide, water and energy. This gaseous exchange takes place through the respiration process.

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + Energy
Question 2
1 / -0

What is the site of cellular respiration in all organisms?

A
Lungs

B
Trachea

C
Skin

D
Cells

Solution

Respiration in organisms takes place in all the cells in order to release energy. Therefore, the site of cellular respiration is simply all the cells in a body.
Question 3
1 / -0

Which microorganisms play a role in the formation of alcohol?

A
Algae

B
Yeasts

C
Viruses

D
Fungi

Solution

Microorganisms which undergo anaerobic respiration produce alcohol. Yeasts are the microorganisms which undergo anaerobic respiration, and convert glucose into alcohol and produce CO₂ and energy.
Question 4
1 / -0

The number of times a person breathes every minute is called

A
pulse rate

B
heart rate

C
breathing rate

D
exhalation rate

Solution

One inhalation and one exhalation together make a breath. The total number of breaths taken by a person in one minute is called breathing rate.
Question 5
1 / -0

If oxygen is to inhalation, then carbon dioxide is to

A
excretion

B
respiration

C
circulation

D
exhalation

Solution

Breathing is simply the inhalation of oxygen and exhalation of carbon dioxide, i.e. exchange of gases. So, if oxygen is to inhalation, then carbon dioxide is to exhalation.
Question 6
1 / -0

The normal breathing rate in an average adult person at rest is

A
15-18 breaths per minute

B
25-30 breaths per minute

C
20-25 breaths per minute

D
10-15 breaths per minute

Solution

Breathing rate is slowest when a person is sleeping. In an adult, the average breathing rate at rest is 15-18 breaths per minute.
Question 7
1 / -0

Which of the following get(s) trapped in the hair present in our nasal cavity?

A
Carbon dioxide

B
Carbon monoxide

C
Smoke and pollen

D
Oxygen and carbon dioxide

Solution

Air that we breathe in is taken through our nose. The hair present in our nose filter off the germs, pollen, or smoke in the air that we inhale.
Question 8
1 / -0

It is printed on the cigarette box that ''Smoking is injurious to health'' because

A
smoking increases pulse rate

B
smoking damages our lungs

C
smoking interferes with blood circulation

D
smoking disrupts ion exchange across membranes

Solution

Smoking is injurious to health as it results in inhalation of harmful smoke and gases. These gases enter our lungs and damage them.
Question 9
1 / -0

Which organ forms the floor of the chest cavity?

A
Lungs

B
Ribs

C
Nasal cavity

D
Diaphragm

Solution

The chest cavity is surrounded by the rib cage, while the floor is occupied by a dome-shaped muscle called diaphragm. Lungs are found in the pleural cavity.
Question 10
1 / -0

Pick the correct path of inhaled air.

A
Nostrils → Wind pipe → Lungs → Cells

B
Nasal cavity → Lungs → Nostrils → Organs

C
Nostril → Chest cavity → Diaphragm → Lungs

D
Nostrils → Wind pipe → Cells → Lungs

Solution

Air is inhaled through nostrils, and then it enters the nasal cavity. After that, it moves towards the trachea or wind pipe, and thus finding its path to the lungs. It finally reaches each and every cell of the body.
So, the correct path is:

Nostrils → Wind pipe → Lungs → Cells
Question 11
1 / -0

Name the main respiratory organ in mammals.

A
Spiracles

B
Lungs

C
Diaphragm

D
Nostrils

Solution

Respiratory organ is the organ where exchange of gases takes place. In all mammals including humans, this gaseous exchange takes place in the lungs, where diaphragm and nostrils are the parts of the mammalian respiratory system.
Question 12
1 / -0

Why is bubbling observed when exhaled air is released in lime water through a straw?

A
As exhaled air is rich in CO₂

B
As exhaled air rich in O₂

C
As exhaled air contains unwanted particles

D
As exhaled air contains both O₂ and CO₂

Solution

Carbon dioxide is only water soluble when pressure is maintained. After the pressure drops, CO₂ gas will try to escape to air. This event is characterised by CO₂ bubbles forming into water.
Question 13
1 / -0

Which of the following organisms does not have tracheal system for respiration?

A
Ant

B
Grasshopper

C
Cockroach

D
Earthworm

Solution

Ant, grasshopper and cockroach have tracheal system for respiration. Earthworm does not have tracheal system and it respires through its skin.
Question 14
1 / -0

Through which organ does the gaseous exchange between cells and blood take place in a fish?

A
Gills

B
Lungs

C
Skin

D
Trachea

Solution

A fish has gills as its respiratory organ. Therefore, gills are responsible for gaseous exchange between cells and blood in a fish.

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Respiration in Organisms Test - 3

Result

Respiration in Organisms Test - 3

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SHARING IS CARING

Question 1

Carbon dioxide

Nitrogen

Oxygen

Argon

Solution

Question 2

Lungs

Trachea

Skin

Cells

Solution

Question 3

Algae

Yeasts

Viruses

Fungi

Solution

Question 4

pulse rate

heart rate

breathing rate

exhalation rate

Solution

Question 5

excretion

respiration

circulation

exhalation

Solution

Question 6

15-18 breaths per minute

25-30 breaths per minute

20-25 breaths per minute

10-15 breaths per minute

Solution

Question 7

Carbon dioxide

Carbon monoxide

Smoke and pollen

Oxygen and carbon dioxide

Solution

Question 8

smoking increases pulse rate

smoking damages our lungs

smoking interferes with blood circulation

smoking disrupts ion exchange across membranes

Solution

Question 9

Lungs

Ribs

Nasal cavity

Diaphragm

Solution

Question 10

Nostrils → Wind pipe → Lungs → Cells

Nasal cavity → Lungs → Nostrils → Organs

Nostril → Chest cavity → Diaphragm → Lungs

Nostrils → Wind pipe → Cells → Lungs

Solution

Question 11

Spiracles

Lungs

Diaphragm

Nostrils

Solution

Question 12

As exhaled air is rich in CO2

As exhaled air rich in O2

As exhaled air contains unwanted particles

As exhaled air contains both O2 and CO2

Solution

As exhaled air is rich in CO₂

As exhaled air rich in O₂

As exhaled air contains both O₂ and CO₂