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Q. No.Identify the incorrect statement regarding the ultra-structure of a skeletal muscle:
1.
Z lines bisect the I band
2.
G actin is a polymer of F actins
3.
A subunit of troponin masks active binding sites for myosin on the actin filament.
4.
Globular head of myosin has ATPase activity.
Subtopic: Skeletal Muscle: Myofilaments |
75%
From NCERT
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Which of the following is not a correctly matched pair?
| 1. | Ear ossicles | Total 6 in number |
| 2. | Pubic symphysis | Fibrous cartilage |
| 3. | Gliding joint | Between atlas and axis vertebrae |
| 4. | Scapula | Glenoid cavity |
Subtopic: Fibrous & Catilaginous Joints |
81%
From NCERT
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The increase of the level of which of the following in the sarcoplasm of a skeletal muscle fibre will lead to the contraction of a muscle?
1. Acetylcholine
2. ATP
3. Calcium ions
4. Troponin C
1. Acetylcholine
2. ATP
3. Calcium ions
4. Troponin C
Subtopic: Excitation Contraction Coupling I | Excitation Contraction Coupling II | Sliding Filament Theory |
84%
From NCERT
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All the following are examples of synovial joints except:
1. joint between carpal bones
2. joint between adjacent thoracic vertebrae
3. joint between atlas and axis vertebra
4. joint between the humerus and pectoral girdle
1. joint between carpal bones
2. joint between adjacent thoracic vertebrae
3. joint between atlas and axis vertebra
4. joint between the humerus and pectoral girdle
Subtopic: Fibrous & Catilaginous Joints | Synovial Joint |
79%
From NCERT
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The facial skeleton bones in the human skull do not include:
| 1. | Zygomatic | 2. | Sphenoid |
| 3. | Nasal | 4. | Maxilla |
Subtopic: Axial Skeleton |
74%
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The ‘H-zone’ in a sarcomere:
| 1. | is the central part of thick filaments not overlapped by thin filaments |
| 2. | is the peripheral part of thick filaments not overlapped by thin filaments |
| 3. | is the central part of thick filaments overlapped by thin filaments |
| 4. | is the peripheral part of thick filaments overlapped by thin filaments |
Subtopic: Skeletal Muscle: Sarcomere |
84%
From NCERT
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The coxal bone in the human skeleton:
| 1. | is a part of the pectoral girdle, has a glenoid cavity that articulates with the head of the femur. |
| 2. | is a part of the pelvic girdle, has an acetabulum that articulates with the head of the humerus. |
| 3. | is a part of the pelvic girdle and is formed by the fusion of three bones. |
| 4. | is a part of pectoral girdle and is formed by the fusion of three bones. |
Subtopic: Appendicular Skeleton | Appendicular Skeleton: Girdle |
79%
From NCERT
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Identify the incorrectly matched pair:
| 1. | Myasthenia gravis | Autoimmune disorder affecting neuro-muscular junction |
| 2. | Tetany | Spasms in muscle due to high Ca++ in body fluids |
| 3. | Osteoporosis | Decreased bone mass is commonly due to decreased levels of estrogen |
| 4. | Gout | Inflammation of joints due to accumulation of uric acid crystals |
Subtopic: Disorders of Muscular and Skeletal System |
87%
From NCERT
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Which of the following is present between the adjacent bones of the vertebral column?
1. Smooth muscle
2. Intercalated discs
3. Cartilage
4. Areolar tissue
1. Smooth muscle
2. Intercalated discs
3. Cartilage
4. Areolar tissue
Subtopic: Fibrous & Catilaginous Joints |
68%
From NCERT
NEET - 2022
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NEET 2025 - Target Batch
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NEET 2025 - Target Batch
Given below are two statements:
In the light of the above statements, choose the most appropriate answer from the options given below:
| Assertion (A): | Osteoporosis is characterised by decreased bone mass and increased chances of fractures. |
| Reason (R): | Common cause of osteoporosis is increased levels of estrogen. |
| 1. | (A) is not correct but (R) is correct. |
| 2. | Both (A) and (R) are correct and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are correct but (R) is not the correct explanation of (A). |
| 4. | (A) is correct but (R) is not correct. |
Subtopic: Disorders of Muscular and Skeletal System |
75%
From NCERT
NEET - 2022
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NEET 2025 - Target Batch
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NEET 2025 - Target Batch
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