Match List-I with List-II.

NEET-2023 [Locomotion-and-Movement] [class-xi ]

• A-II, B-IV, C-III, D-I
• A-III, B-I, C-II, D-IV
• A-II, B-IV, C-I, D-III
• A-I, B-IV, C-III, D-II
Correct Option: C  [ A-II, B-IV, C-I, D-III ]

Remark:

Which of the following statements are correct regarding skeletal muscle?
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.
Choose the most appropriate answer from the options given below:

NEET-2023 [Locomotion-and-Movement] [class-xi ]

• C and D only
• A, B and C only
• B and C only
• A, C and D only
Correct Option: C  [ B and C only ]

Remark:

Which of the following is a correct match for disease and its symptoms ?

NEET-2022 [Locomotion-and-Movement] [class-xi ]

• Tetany - high Ca²⁺ level causing rapid spasms.
• Myasthenia gravis - Genetic disorder resulting in weakening and paralysis of skeletal muscle
• Muscular dystrophy - An auto immune disorder causing progressive degeneration of skeletal muscle
• Arthritis - Inflammed joints
Correct Option: D  [ Arthritis - Inflammed joints ]

Remark:

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
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.
In the light of the above statements, choose the most appropriate answer from the options given below:

NEET-2022 [Locomotion-and-Movement] [class-xi ]

• Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• (A) is correct but (R) is not correct
• (A) is not correct but (R) is correct
• Both (A) and (R) are correct and (R) is the correct explanation of (A)
Correct Option: B  [ (A) is correct but (R) is not correct ]

Remark:

Chronic auto immune disorder affecting neuro muscular junction leading to fatigue, weakening and paralysis of skeletal muscle is called as:

NEET-2021 [Locomotion-and-Movement] [class-xi ]

• Arthritis
• Muscular dystrophy
• Myasthenia gravis
• Gout
Correct Option: C  [ Myasthenia gravis ]

Remark:

During muscular contraction which of the following events occur?
A. 'H' zone disappears
B. 'A' band widens
C. 'I' band reduces in width
D. Myosine hydrolyzes ATP, releasing the ADP and Pi
E. Z-lines attached to actins are pulled inwards
Choose the correct answer from the options given below.

NEET-2021 [Locomotion-and-Movement] [class-xi ]

• A, C, D, E only
• A, B, C, D only
• B, C, D, E only
• B, D, E, A only
Correct Option: A  [ A, C, D, E only ]

Remark:

Match List-I with List-II.

NEET-2021 [Locomotion-and-Movement] [class-xi ]

• A-II, B-III, C-IV, D-I
• A-IV, B-II, C-III, D-I
• A-IV, B-III, C-II, D-I
• A-I, B-III, C-II, D-IV
Correct Option: C  [ A-IV, B-III, C-II, D-I ]

Remark:

Select the incorrectly matched pair from following:

NEET-(Oct)2020 [Locomotion-and-Movement] [class-xi ]

• Chondrocytes - Smooth muscle cells
• Neurons - Nerve cells
• Fibroblast - Areolar tissue
• Osteocytes - Bone cells
Correct Option: A  [ Chondrocytes - Smooth muscle cells ]

Remark:

Match the following columns and select the correct option:

NEET-(Oct)2020 [Locomotion-and-Movement] [class-xi ]

• (A)-(II), (B)-(I), (C)-(III), (D)-(IV)
• (A)-(III), (B)-(I), (C)-(II), (D)-(V)
• (A)-(IV), (B)-(V), (C)-(I), (D)-(II)
• (A)-(I), (B)-(II), (C)-(III), (D)-(IV)
Correct Option: B  [ (A)-(III), (B)-(I), (C)-(II), (D)-(V) ]

Remark:

Match the following columns and select the correct option.

NEET-(Sept)2020 [Locomotion-and-Movement] [class-xi ]

• (A)-(II), (B)-(IV), (C)-(I), (D)-(iii)
• (A)-(I), (B)-(III), (C)-(II), (D)-(IV)
• (A)-(III), (B)-(II), (C)-(IV), (D)-(I)
• (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
Correct Option: D  [ (A)-(IV), (B)-(III), (C)-(I), (D)-(II) ]

Remark: