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Science Exemplar
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Chapter 1: Chemical Reactions and Equations
44 questions
2
Chapter 2: Acids, Bases and Salts
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3
Chapter 3: Metals and Non-metals
63 questions
4
Chapter 4: Carbon and its Compound
30 questions
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Chapter 5: Periodic Classification of Elements
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Chapter 6: Life Processes
75 questions
Q1
Question 13:
Which of the following is most appropriate for aerobic respiration?
Q2
Question 14:
Which of the following statement(s) is (are) true about respiration?
i. During inhalation, ribs move inward and diaphragm is raised.
ii. In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from blood into alveolar air.
iii. Haemoglobin has greater affinity for carbon dioxide than oxygen.
iv. Alveoli increase surface area for exchange of gases.
Q3
Question 15:
Which is the correct sequence of air passage during inhalation?
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Chapter 8: How do Organism Reproduce?
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Chapter 9: Heredity and Evolution
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Chapter 10: Light -Reflection and Refraction
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Chapter 14: Sources of Energy
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Chapter 15: Our Environment
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Chapter 16: Sustainable Management of Natural Resources
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Question
Question 14: Which of the following statement(s) is (are) true about respiration? i. During inhalation, ribs move inward and diaphragm is raised. ii. In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from blood into alveolar air. iii. Haemoglobin has greater affinity for carbon dioxide than oxygen. iv. Alveoli increase surface area for exchange of gases.
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Text solution
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Answer:
During inhalation, ribs move outward and the diaphragm is flattened. Alveoli act as a site of exchange of gases by diffusion and also they increase the surface area for the same.
Hence, the correct answer is option D.
During inhalation, ribs move outward and the diaphragm is flattened. Alveoli act as a site of exchange of gases by diffusion and also they increase the surface area for the same.
Hence, the correct answer is option D.
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Practice more questions from Science Exemplar (NCERT Exemplar)
Q1
Question 13:
Which of the following is most appropriate for aerobic respiration?
Q2
Question 14:
Which of the following statement(s) is (are) true about respiration?
i. During inhalation, ribs move inward and diaphragm is raised.
ii. In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from blood into alveolar air.
iii. Haemoglobin has greater affinity for carbon dioxide than oxygen.
iv. Alveoli increase surface area for exchange of gases.
Q3
Question 15:
Which is the correct sequence of air passage during inhalation?
View allPractice questions from Science Exemplar (NCERT Exemplar)
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Practice more questions from Life Processes
Question 1
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Study the diagram and answer the questions that follow:
(i) Name the components numbered ‘1’ to ‘4’.
(ii) Mention two structural differences between the parts ‘1’ and ‘2’.
(iii) Name the soluble protein found in part ‘4’ which forms insoluble threads during clotting of blood.
(iv) What is the average lifespan of the component numbered ‘1’?
(v) Component numbered ‘1’ do not have certain organelles but are very efficient in their function. Explain.
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| Question Text | Question 14:
Which of the following statement(s) is (are) true about respiration?
i. During inhalation, ribs move inward and diaphragm is raised.
ii. In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from blood into alveolar air.
iii. Haemoglobin has greater affinity for carbon dioxide than oxygen.
iv. Alveoli increase surface area for exchange of gases. |
| Topic | Life Processes |
| Subject | Science |
| Class | Class 10 |
| Answer Type | Text solution:1 |
| Upvotes | 36 |
