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Q. No.The number of incorrectly matched pairs is/are:
I:
Z line
an attachment point for actin molecules
II:
M line
an attachment point for myosin molecules
III:
A band
a band where only actin molecules are found
IV:
I band
a band where only myosin molecules are found
1. 1
2. 2
3. 3
4. 4
Subtopic: Skeletal Muscle: Sarcomere |
72%
From NCERT
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Regarding the myosin protein:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | It is a polymerised protein. |
| II: | The HMM component is the the head and short arm. |
| III: | The globular head is an active ATPase enzyme and has binding sites for ATP and active sites for actin. |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Skeletal Muscle: Basic Anatomy | Skeletal Muscle: Myofilaments | Skeletal Muscle: Sarcomere |
83%
From NCERT
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During shortening of the muscle, i.e., contraction:
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: | the ‘I’ bands get reduced |
| II: | the ‘A’ bands retain the length |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Skeletal Muscle: Sarcomere | Muscle Contraction: Other Considerations |
90%
From NCERT
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The vertebral column is differentiated into:
1. Only I and II are correct
2. Only III and IV are correct
3. Only I and III are correct
4. Only II and IV are correct
| I: | cervical region with 7 vertebrae |
| II: | thoracic region with 12 vertebrae (12) |
| III: | lumbar region with 4 vertebrae |
| IV: | sacral (2-fused) and coccygeal (2-fused) regions |
2. Only III and IV are correct
3. Only I and III are correct
4. Only II and IV are correct
Subtopic: Axial Skeleton |
93%
From NCERT
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Sternum:
| 1. | is a U-shaped bone in the neck |
| 2. | is a flat bone on the ventral midline of thorax |
| 3. | is a small bone commonly found embedded within a muscle or tendon |
| 4. | provides attachment to floating ribs |
Subtopic: Sternum & Ribs |
96%
From NCERT
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Consider the 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: | Each rib is a thin flat bone connected ventrally to the vertebral column and dorsally to the sternum. |
| Statement II: | Each rib has two articulation surfaces on its ventral end and is hence called bicephalic. |
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
Subtopic: Sternum & Ribs | Axial Skeleton |
66%
From NCERT
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Pelvic girdle consists of two coxal bones where each coxal bone is formed by the fusion of:
1. two bones
2. three bones
3. four bones
4. five bones
1. two bones
2. three bones
3. four bones
4. five bones
Subtopic: Appendicular Skeleton: Upper Limb | Appendicular Skeleton | Appendicular Skeleton: Girdle |
90%
From NCERT
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The two halves of the pelvic girdle meet ventrally to form the pubic symphysis containing:
1. fibrous cartilage
2. hyaline cartilage
3. dense regular connective tissue
4. dense irregular connective tissue
1. fibrous cartilage
2. hyaline cartilage
3. dense regular connective tissue
4. dense irregular connective tissue
Subtopic: Appendicular Skeleton: Girdle |
74%
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:
| COLUMN I | COLUMN II | ||
| A | Skeletal | P | Unstriated and Involuntary |
| B | Smooth | Q | Striated and Voluntary |
| C | Cardiac | R | Striated and Involuntary |
| A | B | C | |
| 1. | P | Q | R |
| 2. | R | Q | P |
| 3. | Q | P | R |
| 4. | P | R | Q |
Subtopic: Introduction to Locomotion |
94%
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. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Skeletal Muscle: Basic Anatomy |
80%
From NCERT
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