- 1(current)
Q. No.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: Â Introduction to Locomotion |Â Skeletal Muscle: Sarcomere |
Level 3: 35%-60%
Hints
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: Â Skeletal Muscle: Sarcomere |
 85%
Level 1: 80%+
Hints
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: Â Introduction to Locomotion |Â Skeletal Muscle: Basic Anatomy |Â Skeletal Muscle: Sarcomere |
 59%
Level 3: 35%-60%
Hints
Assertion (A): The dark band on myofibril is anisotropic band.
Reason (R): The light band on myofibril is isotropic band.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false
Reason (R): The light band on myofibril is isotropic band.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false
Subtopic: Â Skeletal Muscle: Myofilaments |Â Skeletal Muscle: Sarcomere |
 91%
Level 1: 80%+
Hints
Read the following statements:
i. Scapula is situated in the dorsal part of thorax between the second and the seventh ribs
ii. The striated appearance of a myofibril is due to the distribution pattern of sarcoplasmic reticulum
iii. Myosin possess oxygen storing capacity
iv. The central hollow portion of vertebra is called neural canal
v. I-band shortens during muscle contraction
How many of the above statements are incorrect?
1. Two
2. Three
3. Four
One
i. Scapula is situated in the dorsal part of thorax between the second and the seventh ribs
ii. The striated appearance of a myofibril is due to the distribution pattern of sarcoplasmic reticulum
iii. Myosin possess oxygen storing capacity
iv. The central hollow portion of vertebra is called neural canal
v. I-band shortens during muscle contraction
How many of the above statements are incorrect?
1. Two
2. Three
3. Four
One
Subtopic: Â Skeletal Muscle: Myofilaments |Â Skeletal Muscle: Sarcomere |Â Appendicular Skeleton |Â Appendicular Skeleton: Girdle |Â Axial Skeleton |
 51%
Level 3: 35%-60%
Hints
Find out the true (T)/ false (F) statements and choose the correct option.
I. The most abundant skeletal muscle protein is myosin
II. The length of A-band remains unchanged during muscle contraction.
III. Ileum is a part of pelvic girdle.
IV. The biggest muscle is Gluteus maximus in the buttock and the smallest is Stapedius in the middle ear
I. The most abundant skeletal muscle protein is myosin
II. The length of A-band remains unchanged during muscle contraction.
III. Ileum is a part of pelvic girdle.
IV. The biggest muscle is Gluteus maximus in the buttock and the smallest is Stapedius in the middle ear
| Options | I | II | III | IV |
| 1. | T | T | T | T |
| 2. | T | F | T | F |
| 3. | F | T | F | T |
| 4. | T | T | F | T |
Subtopic: Â Skeletal Muscle: Myofilaments |Â Skeletal Muscle: Sarcomere |
Level 3: 35%-60%
Hints
Assertion (A): Red fibers can also be called aerobic muscles.
Reason (R): They undergo an anaerobic process for energy production.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason (R): They undergo an anaerobic process for energy production.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Â Skeletal Muscle: Sarcomere |
 87%
Level 1: 80%+
Hints
Which of the following statements are correct regarding skeletal muscle?
Choose the most appropriate answer from the options given below:
| A: | Muscle bundles are held together by collagenous connective tissue layer called fascicle. |
| B: | Sarcoplasmic reticulum of muscle fibre is a store house of calcium ions. |
| C: | Striated appearance of skeletal muscle fibre is due to distribution pattern of actin and myosin proteins. |
| D: | M line is considered as functional unit of contraction called sarcomere. |
| 1. | C and D only | 2. | A, B and C only |
| 3. | B and C only | 4. | A, C and D only |
Subtopic: Â Skeletal Muscle: Basic Anatomy |Â Skeletal Muscle: Myofilaments |Â Skeletal Muscle: Sarcomere |
 56%
Level 3: 35%-60%
NEET - 2023
Hints
- 1(current)
Q. No.
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