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Which of the following statements about the breathing cycle is true?
- a)The lungs are completely empty of air after exhalation.
- b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.
- c)Residual volume refers to the air that is only present when the lungs are fully inflated.
- d)The residual volume of air prevents the absorption of oxygen.
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which of the following statements about the breathing cycle is true?a)...
Explanation of the Breathing Cycle:
- The lungs are never completely empty. After exhalation, a certain amount of air, known as residual volume, remains.
- This residual volume ensures that the lungs maintain structural integrity and continue to facilitate gas exchange.
- It is crucial for the lungs to always have some air to prevent collapse and to support the continual exchange of oxygen and carbon dioxide.
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Community Answer
Which of the following statements about the breathing cycle is true?a)...
Understanding the Breathing Cycle
The breathing cycle is a vital process that involves inhalation (taking in air) and exhalation (letting out air). Here’s a detailed explanation of why option 'B' is the correct answer.
Lungs Always Retain Air
- The lungs never become completely empty of air. After exhalation, there is always a certain volume of air left in the lungs, known as residual volume.
- This air is crucial as it prevents the lungs from collapsing and ensures that there is always some air available for gas exchange.
Residual Volume Explained
- Residual volume refers specifically to the amount of air that remains in the lungs after a forceful exhalation.
- It is typically around 1-1.5 liters in adults and plays a critical role in maintaining lung structure and function.
Importance of Residual Volume
- This residual air helps with continuous gas exchange, even between breaths, ensuring that oxygen levels in the blood remain stable.
- It also helps to prevent the lungs from collapsing, which can happen if they were to empty completely.
Clarifying Other Options
- Option A is incorrect because the lungs are never completely empty after exhalation.
- Option C is misleading as residual volume is present even when the lungs are not fully inflated.
- Option D is inaccurate because residual volume does not prevent oxygen absorption; rather, it facilitates ongoing gas exchange.
In summary, option 'B' accurately reflects the physiology of the lungs during the breathing cycle, highlighting the importance of residual volume in maintaining respiratory function.
The breathing cycle is a vital process that involves inhalation (taking in air) and exhalation (letting out air). Here’s a detailed explanation of why option 'B' is the correct answer.
Lungs Always Retain Air
- The lungs never become completely empty of air. After exhalation, there is always a certain volume of air left in the lungs, known as residual volume.
- This air is crucial as it prevents the lungs from collapsing and ensures that there is always some air available for gas exchange.
Residual Volume Explained
- Residual volume refers specifically to the amount of air that remains in the lungs after a forceful exhalation.
- It is typically around 1-1.5 liters in adults and plays a critical role in maintaining lung structure and function.
Importance of Residual Volume
- This residual air helps with continuous gas exchange, even between breaths, ensuring that oxygen levels in the blood remain stable.
- It also helps to prevent the lungs from collapsing, which can happen if they were to empty completely.
Clarifying Other Options
- Option A is incorrect because the lungs are never completely empty after exhalation.
- Option C is misleading as residual volume is present even when the lungs are not fully inflated.
- Option D is inaccurate because residual volume does not prevent oxygen absorption; rather, it facilitates ongoing gas exchange.
In summary, option 'B' accurately reflects the physiology of the lungs during the breathing cycle, highlighting the importance of residual volume in maintaining respiratory function.
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Which of the following statements about the breathing cycle is true?a)The lungs are completely empty of air after exhalation.b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.c)Residual volume refers to the air that is only present when the lungs are fully inflated.d)The residual volume of air prevents the absorption of oxygen.Correct answer is option 'B'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Which of the following statements about the breathing cycle is true?a)The lungs are completely empty of air after exhalation.b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.c)Residual volume refers to the air that is only present when the lungs are fully inflated.d)The residual volume of air prevents the absorption of oxygen.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements about the breathing cycle is true?a)The lungs are completely empty of air after exhalation.b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.c)Residual volume refers to the air that is only present when the lungs are fully inflated.d)The residual volume of air prevents the absorption of oxygen.Correct answer is option 'B'. Can you explain this answer?.
Which of the following statements about the breathing cycle is true?a)The lungs are completely empty of air after exhalation.b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.c)Residual volume refers to the air that is only present when the lungs are fully inflated.d)The residual volume of air prevents the absorption of oxygen.Correct answer is option 'B'. Can you explain this answer? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Which of the following statements about the breathing cycle is true?a)The lungs are completely empty of air after exhalation.b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.c)Residual volume refers to the air that is only present when the lungs are fully inflated.d)The residual volume of air prevents the absorption of oxygen.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements about the breathing cycle is true?a)The lungs are completely empty of air after exhalation.b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.c)Residual volume refers to the air that is only present when the lungs are fully inflated.d)The residual volume of air prevents the absorption of oxygen.Correct answer is option 'B'. Can you explain this answer?.
Solutions for Which of the following statements about the breathing cycle is true?a)The lungs are completely empty of air after exhalation.b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.c)Residual volume refers to the air that is only present when the lungs are fully inflated.d)The residual volume of air prevents the absorption of oxygen.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
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Which of the following statements about the breathing cycle is true?a)The lungs are completely empty of air after exhalation.b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.c)Residual volume refers to the air that is only present when the lungs are fully inflated.d)The residual volume of air prevents the absorption of oxygen.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Which of the following statements about the breathing cycle is true?a)The lungs are completely empty of air after exhalation.b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.c)Residual volume refers to the air that is only present when the lungs are fully inflated.d)The residual volume of air prevents the absorption of oxygen.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Which of the following statements about the breathing cycle is true?a)The lungs are completely empty of air after exhalation.b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.c)Residual volume refers to the air that is only present when the lungs are fully inflated.d)The residual volume of air prevents the absorption of oxygen.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following statements about the breathing cycle is true?a)The lungs are completely empty of air after exhalation.b)During the breathing cycle, air is taken in and let out, but the lungs always contain a residual volume of air.c)Residual volume refers to the air that is only present when the lungs are fully inflated.d)The residual volume of air prevents the absorption of oxygen.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 10 tests.
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