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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.
Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.
- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
Correct answer is option 'B'. Can you explain this answer?
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Directions: In the following questions, a statement of assertion (A) ...
There is no mixing of oxygenated and deoxygenated blood due to presence of interauricular and inter- ventricular septum. On the other hand, valves are present in the heart which allows the movement of blood in one direction only.
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Directions: In the following questions, a statement of assertion (A) ...
Explanation:
The statement of assertion (A) is true. There is no mixing of oxygenated and deoxygenated blood in the human heart. The oxygenated blood flows from the lungs to the left atrium and then to the left ventricle. The left ventricle pumps this oxygenated blood to the entire body. The deoxygenated blood, on the other hand, flows from the body to the right atrium and then to the right ventricle. The right ventricle pumps this deoxygenated blood to the lungs for oxygenation.
The statement of reason (R) is also true. Valves are present in the heart which allows the movement of blood in one direction only. There are four valves in the human heart - the tricuspid valve, mitral valve, pulmonary valve, and aortic valve. These valves ensure that the blood flows in one direction only and prevent any backflow.
However, the reason (R) is not the correct explanation of assertion (A). While the valves do ensure the movement of blood in one direction only, they do not directly prevent the mixing of oxygenated and deoxygenated blood. The separation of oxygenated and deoxygenated blood is achieved by the structural arrangement of the heart chambers and blood vessels.
Hence, the correct choice is option (B) - both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
The statement of assertion (A) is true. There is no mixing of oxygenated and deoxygenated blood in the human heart. The oxygenated blood flows from the lungs to the left atrium and then to the left ventricle. The left ventricle pumps this oxygenated blood to the entire body. The deoxygenated blood, on the other hand, flows from the body to the right atrium and then to the right ventricle. The right ventricle pumps this deoxygenated blood to the lungs for oxygenation.
The statement of reason (R) is also true. Valves are present in the heart which allows the movement of blood in one direction only. There are four valves in the human heart - the tricuspid valve, mitral valve, pulmonary valve, and aortic valve. These valves ensure that the blood flows in one direction only and prevent any backflow.
However, the reason (R) is not the correct explanation of assertion (A). While the valves do ensure the movement of blood in one direction only, they do not directly prevent the mixing of oxygenated and deoxygenated blood. The separation of oxygenated and deoxygenated blood is achieved by the structural arrangement of the heart chambers and blood vessels.
Hence, the correct choice is option (B) - both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.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 Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.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 Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer?.
Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.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 Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.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 Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer?.
Solutions for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.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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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason (R): Valves are present in the heart which allows the movement of blood in one direction only.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 10 tests.
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