Gaseous Exchange MCQs with Answers

admin3 weeks ago

0 12 1 minute read

Welcome to the Gaseous Exchange MCQs with Answers. In this post, we have shared Gaseous Exchange Online Test for different competitive exams. Find practice Gaseous Exchange Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Gaseous Exchange.

Gaseous Exchange Online Quiz

By presenting 3 options to choose from, Gaseous Exchange Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Gaseous Exchange Questions and Answers and click over the correct answer.

Test Name: Gaseous Exchange MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

Gaseous Exchange

Please fill out the form before starting Quiz.

1 / 40

Which respiratory disorder involves chronic inflammation of the bronchial tubes?

Asthma

Tuberculosis

Bronchitis

2 / 40

Which respiratory structure is responsible for producing sound?

Alveoli

Epiglottis

Vocal cords

3 / 40

In which organ does the process of external respiration occur?

Liver

Stomach

Lungs

4 / 40

Which gas is responsible for the majority of the atmospheric pressure?

Nitrogen

Carbon dioxide

Oxygen

5 / 40

Which respiratory disorder is characterized by inflammation and narrowing of the airways?

Emphysema

Asthma

Bronchitis

6 / 40

How is oxygen transported in the blood?

Dissolved in plasma

Bound to hemoglobin in red blood cells

Combined with carbon dioxide

7 / 40

What is the role of hemoglobin in the transport of gases in the blood?

Binding and carrying oxygen

Neutralizing acids

Initiating cough reflex

8 / 40

What is the term for the volume of air inspired and expired with each breath under resting conditions?

Tidal volume

Residual volume

Vital capacity

9 / 40

In which part of the respiratory system does gas exchange occur between the air and blood?

Trachea

Bronchi

Alveoli

10 / 40

Where does the process of internal respiration occur in the body?

Tissues and cells

Lungs

Trachea

11 / 40

Which respiratory center in the brain responds to changes in blood pH and carbon dioxide levels?

Baroreceptors

Central chemoreceptors

Peripheral chemoreceptors

12 / 40

Which respiratory disorder is characterized by the accumulation of fluid in the alveoli?

Pleurisy

Pneumonia

Pulmonary edema

13 / 40

What is the primary gas exchanged during external respiration?

Oxygen

Nitrogen

Carbon dioxide

14 / 40

What is the term for the exchange of gases between the blood and the tissues/cells?

External respiration

Cellular respiration

Internal respiration

15 / 40

What is the term for the smallest functional unit of the lung where gas exchange occurs?

Bronchus

Trachea

Alveolus

16 / 40

What is the role of the pleura in the respiratory system?

Reducing friction and creating airtight seal in the pleural cavity

Facilitating gas exchange

Producing mucus for lubrication

17 / 40

What is the term for the movement of air into and out of the lungs?

Circulation

Digestion

Breathing or ventilation

18 / 40

What is the primary stimulus for increasing the rate and depth of breathing?

Low oxygen levels (hypoxia)

High nitrogen levels

Elevated carbon dioxide levels (hypercapnia)

19 / 40

What is the primary function of the respiratory pigment myoglobin?

Oxygen transport in the blood

Carbon dioxide transport in the blood

Oxygen storage in muscle cells

20 / 40

Which respiratory center in the brain responds to changes in blood pressure?

Central chemoreceptors

Baroreceptors

Peripheral chemoreceptors

21 / 40

What is the term for the volume of air remaining in the lungs after a normal tidal expiration?

Inspiratory reserve volume

Tidal volume

Functional residual capacity

22 / 40

What is the function of cilia in the respiratory system?

Produce surfactant

Move mucus and trapped particles out of the airways

Facilitate gas exchange

23 / 40

What is the term for the process of breathing in oxygen and exhaling carbon dioxide?

Respiration

Digestion

Circulation

24 / 40

Which respiratory disorder is characterized by the destruction of alveoli and loss of lung elasticity?

Asthma

Pneumonia

Emphysema

25 / 40

What is the function of the epiglottis during swallowing?

Facilitates gas exchange

Prevents food and liquids from entering the trachea

Produces mucus

26 / 40

Which gas is a product of aerobic cellular respiration within cells?

Nitrogen

Oxygen

Carbon dioxide

27 / 40

How does oxygen move from the alveoli into the bloodstream?

Active transport

Osmosis

Diffusion

28 / 40

How is carbon dioxide mainly transported in the blood?

Bound to hemoglobin

As free gas molecules

Dissolved in plasma and as bicarbonate ions

29 / 40

What is the primary function of the respiratory system?

Nutrient absorption

Blood clotting

Gas exchange (oxygen and carbon dioxide)

30 / 40

What is the purpose of surfactant in the alveoli of the lungs?

Reducing surface tension to prevent alveolar collapse

Facilitating gas diffusion

Enhancing cough reflex

31 / 40

How do fish primarily exchange gases in their respiratory system?

Through lungs

Through gills

Through skin

32 / 40

What is the primary function of the diaphragm in the respiratory system?

Relaxes to decrease chest volume during expiration

Contracts to increase the volume of the chest during inspiration

Aids in vocalization

33 / 40

How is carbon dioxide primarily transported from tissues to the lungs?

Bound to hemoglobin

As free gas molecules

Dissolved in plasma and as bicarbonate ions

34 / 40

Which gas is a waste product of cellular respiration and is expelled during exhalation?

Carbon dioxide

Nitrogen

Oxygen

35 / 40

Which muscle is primarily responsible for inspiration (inhaling air)?

Diaphragm

Intercostal muscles

Abdominal muscles

36 / 40

Which respiratory center in the brain regulates breathing rhythm?

Cerebellum

Medulla oblongata

Hypothalamus

37 / 40

What is the term for the amount of air that can be forcibly expelled after a normal tidal volume expiration?

Expiratory reserve volume

Inspiratory reserve volume

Vital capacity

38 / 40

What is the term for the total volume of air that can be forcefully exhaled after a maximal inspiration?

Residual volume

Vital capacity

Inspiratory reserve volume

39 / 40

What is the term for the process of moving air into and out of the alveoli during ventilation?

Pulmonary ventilation

External respiration

Internal respiration

40 / 40

How does the body regulate breathing rate during exercise?

Decrease in carbon dioxide levels and increase in oxygen levels

Unchanged carbon dioxide and oxygen levels

Increase in carbon dioxide levels and decrease in oxygen levels

Download Certificate of Quiz Gaseous Exchange

On the end of Quiz, you can download the certificate of the quiz if you got more than 70% marks. Add a certificate to your job application or social profile (like LinkedIn) and get more job offers.

If you are interested to enhance your knowledge regarding English, Physics, Chemistry, and Computer please click on the link of each category, you will be redirected to dedicated website for each category.

admin3 weeks ago

0 12 1 minute read