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Assertion (A): Myosin and actin filaments slide past each other during muscle contraction.
Reason (R): The sliding filament theory explains the mechanism of muscle contraction.
- a)Both A and R are true, and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is true, but R is false.
- d)A is false, but R is true.
Correct answer is option 'A'. Can you explain this answer?
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Assertion (A): Myosin and actin filaments slide past each other during...
The assertion and reason are both true, and the reason correctly explains the assertion. The sliding filament theory describes how the actin (thin) and myosin (thick) filaments slide past each other, shortening the sarcomere and causing muscle contraction.
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Assertion (A): Myosin and actin filaments slide past each other during...
Explanation:
Muscle contraction is a complex process that involves the interaction between myosin and actin filaments. The sliding filament theory is a widely accepted explanation for how muscles contract.
Myosin and Actin Filaments Sliding Past Each Other:
- During muscle contraction, myosin filaments pull actin filaments towards the center of the sarcomere, causing the muscle to shorten.
- This sliding motion occurs due to the binding of myosin heads to actin filaments, forming cross-bridges.
Sliding Filament Theory:
- The sliding filament theory explains the mechanism of muscle contraction by describing how myosin and actin filaments interact to generate force and movement.
- According to this theory, during contraction, the actin filaments slide past the myosin filaments, resulting in muscle shortening.
- The ATP-driven cycle of myosin cross-bridge formation and release is essential for this sliding motion to occur.
Therefore, both the assertion (A) that myosin and actin filaments slide past each other during muscle contraction and the reason (R) that the sliding filament theory explains the mechanism of muscle contraction are true. Additionally, the reason provides the correct explanation for the assertion, making option 'A' the correct choice.
Muscle contraction is a complex process that involves the interaction between myosin and actin filaments. The sliding filament theory is a widely accepted explanation for how muscles contract.
Myosin and Actin Filaments Sliding Past Each Other:
- During muscle contraction, myosin filaments pull actin filaments towards the center of the sarcomere, causing the muscle to shorten.
- This sliding motion occurs due to the binding of myosin heads to actin filaments, forming cross-bridges.
Sliding Filament Theory:
- The sliding filament theory explains the mechanism of muscle contraction by describing how myosin and actin filaments interact to generate force and movement.
- According to this theory, during contraction, the actin filaments slide past the myosin filaments, resulting in muscle shortening.
- The ATP-driven cycle of myosin cross-bridge formation and release is essential for this sliding motion to occur.
Therefore, both the assertion (A) that myosin and actin filaments slide past each other during muscle contraction and the reason (R) that the sliding filament theory explains the mechanism of muscle contraction are true. Additionally, the reason provides the correct explanation for the assertion, making option 'A' the correct choice.
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Assertion (A): Myosin and actin filaments slide past each other during muscle contraction.Reason (R): The sliding filament theory explains the mechanism of muscle contraction.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'A'. Can you explain this answer?
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Assertion (A): Myosin and actin filaments slide past each other during muscle contraction.Reason (R): The sliding filament theory explains the mechanism of muscle contraction.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Assertion (A): Myosin and actin filaments slide past each other during muscle contraction.Reason (R): The sliding filament theory explains the mechanism of muscle contraction.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): Myosin and actin filaments slide past each other during muscle contraction.Reason (R): The sliding filament theory explains the mechanism of muscle contraction.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'A'. Can you explain this answer?.
Assertion (A): Myosin and actin filaments slide past each other during muscle contraction.Reason (R): The sliding filament theory explains the mechanism of muscle contraction.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Assertion (A): Myosin and actin filaments slide past each other during muscle contraction.Reason (R): The sliding filament theory explains the mechanism of muscle contraction.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): Myosin and actin filaments slide past each other during muscle contraction.Reason (R): The sliding filament theory explains the mechanism of muscle contraction.a)Both A and R are true, and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'A'. Can you explain this answer?.
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