10th Class Biology Chapter 10 MCQs with Answers

AdminApril 3, 2024

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Welcome to the 10th Class Biology Chapter 10 MCQs Practice and Quiz Tests. We are presenting you with top MCQ questions from the 10th Class Biology Chapter 10 Gaseous Exchange.

You can find all the 10th Class Biology Chapter 10 MCQs online tests on our website. These online tests are great for learning and as well as for scoring maximum marks in your Matric Exams. We are making these Class 10 Biology MCQs online tests for those who want full marks in their exams.

10th Class Multiple Choice Question Chapter 10 with Answers Free PDF

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Grade 10 Biology Chapter 10 Online Quiz

By presenting 3 options to choose from, 10th Class Biology Chapter 10 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 10th Class Questions and Answers and click over the correct answer.

Test Name: 10th Class Biology Chapter 10 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 comment below this post, so that we can update the answer in the quiz section.

10th Class Biology Ch 10: Gaseous Exchange

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1 / 40

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

Facilitating gas diffusion

Enhancing cough reflex

Reducing surface tension to prevent alveolar collapse

2 / 40

How is oxygen transported in the blood?

Combined with carbon dioxide

Bound to hemoglobin in red blood cells

Dissolved in plasma

3 / 40

How is carbon dioxide mainly transported in the blood?

Dissolved in plasma and as bicarbonate ions

Bound to hemoglobin

As free gas molecules

4 / 40

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

Circulation

Digestion

Respiration

5 / 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

6 / 40

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

Reducing friction and creating airtight seal in the pleural cavity

Producing mucus for lubrication

Facilitating gas exchange

7 / 40

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

Central chemoreceptors

Peripheral chemoreceptors

Baroreceptors

8 / 40

How does the body regulate breathing rate during exercise?

Unchanged carbon dioxide and oxygen levels

Increase in carbon dioxide levels and decrease in oxygen levels

Decrease in carbon dioxide levels and increase in oxygen levels

9 / 40

Which respiratory disorder involves chronic inflammation of the bronchial tubes?

Asthma

Tuberculosis

Bronchitis

10 / 40

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

Trachea

Bronchi

Alveoli

11 / 40

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

Central chemoreceptors

Peripheral chemoreceptors

Baroreceptors

12 / 40

What is the primary gas exchanged during external respiration?

Carbon dioxide

Oxygen

Nitrogen

13 / 40

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

Oxygen

Nitrogen

Carbon dioxide

14 / 40

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

Inspiratory reserve volume

Expiratory reserve volume

Vital capacity

15 / 40

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

Circulation

Digestion

Breathing or ventilation

16 / 40

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

Aids in vocalization

Contracts to increase the volume of the chest during inspiration

Relaxes to decrease chest volume during expiration

17 / 40

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

Pleurisy

Pneumonia

Pulmonary edema

18 / 40

What is the function of the epiglottis during swallowing?

Produces mucus

Prevents food and liquids from entering the trachea

Facilitates gas exchange

19 / 40

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

Asthma

Emphysema

Pneumonia

20 / 40

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

Bronchus

Alveolus

Trachea

21 / 40

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

Residual volume

Vital capacity

Tidal volume

22 / 40

What is the primary function of the respiratory pigment myoglobin?

Oxygen transport in the blood

Oxygen storage in muscle cells

Carbon dioxide transport in the blood

23 / 40

What is the primary function of the respiratory system?

Nutrient absorption

Blood clotting

Gas exchange (oxygen and carbon dioxide)

24 / 40

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

Elevated carbon dioxide levels (hypercapnia)

High nitrogen levels

Low oxygen levels (hypoxia)

25 / 40

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

Diaphragm

Intercostal muscles

Abdominal muscles

26 / 40

What is the function of cilia in the respiratory system?

Produce surfactant

Facilitate gas exchange

Move mucus and trapped particles out of the airways

27 / 40

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

Trachea

Tissues and cells

Lungs

28 / 40

Which respiratory structure is responsible for producing sound?

Alveoli

Epiglottis

Vocal cords

29 / 40

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

Oxygen

Nitrogen

Carbon dioxide

30 / 40

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

Binding and carrying oxygen

Neutralizing acids

Initiating cough reflex

31 / 40

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

Inspiratory reserve volume

Vital capacity

Residual volume

32 / 40

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

Carbon dioxide

Oxygen

Nitrogen

33 / 40

In which organ does the process of external respiration occur?

Lungs

Stomach

Liver

34 / 40

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

Dissolved in plasma and as bicarbonate ions

As free gas molecules

Bound to hemoglobin

35 / 40

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

Cellular respiration

Internal respiration

External respiration

36 / 40

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

Emphysema

Asthma

Bronchitis

37 / 40

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

Inspiratory reserve volume

Functional residual capacity

Tidal volume

38 / 40

How does oxygen move from the alveoli into the bloodstream?

Osmosis

Active transport

Diffusion

39 / 40

How do fish primarily exchange gases in their respiratory system?

Through skin

Through gills

Through lungs

40 / 40

Which respiratory center in the brain regulates breathing rhythm?

Hypothalamus

Cerebellum

Medulla oblongata

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AdminApril 3, 2024

0 11 1 minute read