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Q. No.Sliding filament theory can be best explained as:
1.
when myofilaments slide past each other actin elements shorten while myosin filaments do not shorten
2.
actin myosin filaments shorten and slide pass each other
3.
actin and myosin filaments do not shorten, but rather slide pass each other
4.
when myofilament slide pass each other myosin filament shorten while actin filaments do not shorten
Subtopic: Sliding Filament Theory |
56%
From NCERT
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Atlas is?
1. 1st cervical vertebrae
2. 2nd cervical vertebrae
3. 1st thoracic vertebrae
4. 2nd Lumbar vertebrae
1. 1st cervical vertebrae
2. 2nd cervical vertebrae
3. 1st thoracic vertebrae
4. 2nd Lumbar vertebrae
Subtopic: Axial Skeleton |
91%
From NCERT
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Which of the following pair is correctly matched?
| Column I | Column II | |
| 1. | Cartilaginous | Skull bones joint |
| 2. | Hinge joint | Between vertebrae |
| 3. | Fibrous joint | Between phalanges |
| 4. | Gliding joint | Between zygapo-physes of the successive vertebrae |
Subtopic: Fibrous & Catilaginous Joints | Synovial Joint |
68%
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Which of the following is important for muscle contraction and nerve impulse transmission?
1. Ca2+ ions
2. Mg2+ ions
3. Both (1) and (2)
4. Fe2+ ions
1. Ca2+ ions
2. Mg2+ ions
3. Both (1) and (2)
4. Fe2+ ions
Subtopic: Energy for Muscle Contraction |
68%
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During strenuous exercise, glucose is converted into?
1. glycogen
2. pyruvic acid
3. starch
4. lactic acid
1. glycogen
2. pyruvic acid
3. starch
4. lactic acid
Subtopic: Muscle Contraction: Other Considerations |
81%
From NCERT
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Which of the following is important for muscle contraction and nerve impulse transmission?
1. \(Ca^{2+}\) ions
2. \(Ca^{2+}\) and \(Mg^{2+}\) ions
3. \(Mg^{2+}\) ions
4. \(Fe^{2+}\) ions
1. \(Ca^{2+}\) ions
2. \(Ca^{2+}\) and \(Mg^{2+}\) ions
3. \(Mg^{2+}\) ions
4. \(Fe^{2+}\) ions
Subtopic: Energy for Muscle Contraction |
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Consider the given two statements:
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | Locomotory structures need not be different from those affecting other types of movements. |
| Statement II: | All movements are locomotions but all locomotions are not movements. |
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Introduction to Locomotion |
67%
From NCERT
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The types of movements exhibited by various cells in human body include:
1. Only III
2. Only I and II
3. Only II and III
4. I, II and III
| I: | Amoeboid |
| II: | Ciliary |
| III: | muscular |
1. Only III
2. Only I and II
3. Only II and III
4. I, II and III
Subtopic: Introduction to Locomotion |
90%
From NCERT
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Muscle:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | is a specialised tissue of endodermal origin. |
| II: | contributes about 20-30 per cent of the body weight of a human adult. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Skeletal Muscle: Basic Anatomy |
81%
From NCERT
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Match the type of muscle given in Column I with correct description in Column II and select
the correct match as your answer from the codes given:
Codes:
the correct match as your answer from the codes given:
| COLUMN I | COLUMN II | ||
| A | Skeletal | P | Unstriated and Involuntary |
| B | Smooth | Q | Striated and Voluntary |
| C | Cardiac | R | Striated and Involuntary |
Codes:
| A | B | C | |
| 1. | P | Q | R |
| 2. | R | Q | P |
| 3. | Q | P | R |
| 4. | P | R | Q |
Subtopic: Introduction to Locomotion |
95%
From NCERT
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