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Q. No.Read the given statements with respect to skeletal muscle and select the correct option.
Statement A: The muscle bundles are bound together by a common collagenous sheath of connective tissue called fascia.
Statement B: Muscle fibre is a syncytium as the sarcoplasm contains many nuclei.
1. Both statements A and B are correct
2. Both statements A and B are incorrect
3. Only statement A is incorrect
4. Only statement A is correct
Subtopic: Skeletal Muscle: Basic Anatomy |
90%
From NCERT
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How many of the given statements are correct?
Select the correct option.
1. One
2. Three
3. Two
4. Four
| a. | Sarcoplasmic reticulum of the muscle fibres is the storehouse of calcium ions. |
| b. | The type of muscles present in our thigh are striated and voluntary. |
| c. | The H-zone in the skeletal muscle fibre is due to the central gap between myosin filaments in the A-band. |
| d. | Production of body heat and storage of minerals are the functions of the skeletal system. |
Select the correct option.
1. One
2. Three
3. Two
4. Four
Subtopic: Introduction to Locomotion | Skeletal Muscle: Sarcomere |
From NCERT
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Match column I with column II and select the correct option.
1. a(i), b(ii), c(iii), d(iv)
2. a(iv), b(iii), c(ii), d(i)
3. a(iii), b(i), c(iv), d(ii)
4. a(iii), b(iv), c(ii), d(i)
| Column-I | Column -II | ||
| a. | I-band | (i) | Contains both thin and thick filaments |
| b. | A-band | (ii) | Elastic fibre that bisects I-band |
| c. | M-line | (iii) | Contains thin filaments |
| d. | Z-line | (iv) | Thin fibrous membrane |
2. a(iv), b(iii), c(ii), d(i)
3. a(iii), b(i), c(iv), d(ii)
4. a(iii), b(iv), c(ii), d(i)
Subtopic: Skeletal Muscle: Sarcomere |
84%
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Consider the statements given below and choose the option that correctly states them as true(T) or false (F)
| (a) | Locomotion, changes of body postures and heat production are some of the functions of skeletal muscle tissue |
| (b) | Actin filaments are firmly attached to the Z-line |
| (c) | The portion of myofibril between non-consecutive 'Z' lines is called sacromere |
| (d) | Muscles constitute more than 50% of the body weight in an adult human |
| a | b | c | d | |
| 1. | T | T | T | T |
| 2. | T | F | F | T |
| 3. | T | T | F | F |
| 4. | F | T | T | T |
Subtopic: Introduction to Locomotion | Skeletal Muscle: Basic Anatomy | Skeletal Muscle: Sarcomere |
57%
From NCERT
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During muscular contraction, which of the following events do not occur?
Choose the correct answer from the options given below.
1. (a), (b), (c) and (d)
2. (a), (b), (d) and (e)
3. (a), (c) and (e)
4. (b) and (d)
| a. | ‘H’ zone decreases in length and disappears on full relaxation |
| b. | A band remains unchanged |
| c. | I band gets reduced in length due to decrease in length of actin filaments |
| d. | Myosin hydrolyses ATP, releasing ADP and P1 |
| e. | Z- lines move away from each other |
1. (a), (b), (c) and (d)
2. (a), (b), (d) and (e)
3. (a), (c) and (e)
4. (b) and (d)
Subtopic: Sliding Filament Theory |
64%
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Match List-I with List-II:
Choose the correct answer from the options given below:
(a) (b) (c) (d)
1. (iv) (iii) (ii) (i)
2. (i) (iii) (ii) (iv)
3. (ii) (iii) (i) (iv)
4. (ii) (i) (iv) (iii)
| List-I | List-II | ||
| (a) | Collar bone | (i) | Thoracic vertebrae, ribs, and sternum |
| (b) | Rib cage | (ii) | Long slender bone with two curvatures |
| (c) | Skull bones | (iii) | Pivot joint |
| (d) | Atlas and axis | (iv) | Sutures |
Choose the correct answer from the options given below:
(a) (b) (c) (d)
1. (iv) (iii) (ii) (i)
2. (i) (iii) (ii) (iv)
3. (ii) (iii) (i) (iv)
4. (ii) (i) (iv) (iii)
Subtopic: Vertebral column | Appendicular Skeleton: Girdle | Fibrous & Catilaginous Joints |
96%
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Consider the statements given below with respect to locomotion and movement.
(a) Cytoskeletal elements like microfilaments are involved in ciliary movements in poriferans.
(b) Passage of ova in female reproductive tract is facilitated by ciliary movement of ova.
(c) Amoeboid movement of macrophages is effected by pseudopodia formed by streaming of protoplasm.
Select the option that contains incorrect statements.
1. a and b only
2. b and c only
3. a and c only
4. a, b and c
(a) Cytoskeletal elements like microfilaments are involved in ciliary movements in poriferans.
(b) Passage of ova in female reproductive tract is facilitated by ciliary movement of ova.
(c) Amoeboid movement of macrophages is effected by pseudopodia formed by streaming of protoplasm.
Select the option that contains incorrect statements.
1. a and b only
2. b and c only
3. a and c only
4. a, b and c
Subtopic: Introduction to Locomotion |
From NCERT
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Study the following statements carefully:
Select the correct option:
1. a and b
2. b and c
3. c and d
4. a and d
| (a) | In humans, the skull articulates with the axis vertebra with two occipital condyles. |
| (b) | The number of cervical vertebrae is seven in almost all mammals. |
| (c) | The bones of vertebral column form the cartilaginous joint. |
| (d) | The spinal curve formed due to thoracic vertebrae is convex anteriorly. |
1. a and b
2. b and c
3. c and d
4. a and d
Subtopic: Vertebral column |
67%
From NCERT
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Consider the statements A and B and select the correct option:
1. Both statements A and B are correct
2. Both statements A and B are incorrect
3. Only statement A is correct
4. Only statement B is correct
| Statement A: | First seven pairs of ribs are ventrally connected to the sternum with the help of hyaline cartilage. |
| Statement B: | The last three pairs of ribs do not articulate directly with the sternum but join the seventh rib with the help of hyaline cartilage. |
1. Both statements A and B are correct
2. Both statements A and B are incorrect
3. Only statement A is correct
4. Only statement B is correct
Subtopic: Number of Bone in Axial Skeleton | Axial Skeleton: I | Axial Skeleton: II |
56%
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Select unpaired bones among the following:
(a) Occipital
(b) Parietal
(c) Ethmoid
(d) Sphenoid
(e) Maxilla
1. a, b and c
2. b, c and d
3. a, c and e
4. a, c and d
(a) Occipital
(b) Parietal
(c) Ethmoid
(d) Sphenoid
(e) Maxilla
1. a, b and c
2. b, c and d
3. a, c and e
4. a, c and d
Subtopic: Human Skeleton: Introduction, Function, Parts |
60%
From NCERT
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