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Q. No.The types of movements exhibited by various cells in human body include:
1. Only III
2. Only I and II
3. Only II and III
4. I, II and III
| I: | Amoeboid |
| II: | Ciliary |
| III: | muscular |
1. Only III
2. Only I and II
3. Only II and III
4. I, II and III
Subtopic: Introduction to Locomotion |
89%
Level 1: 80%+
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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%
Level 1: 80%+
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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%
Level 1: 80%+
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Identify the incorrect statement:
| 1. | A skeletal muscle cell is called as a muscle fibre. |
| 2. | A skeletal muscle fibre is a syncytium. |
| 3. | Sarcolemma, the plasma membrane of skeletal muscle cell, encloses the sarcoplasm. |
| 4. | Sarcoplasmic reticulum of the muscle fibres is a rough endoplasmic reticulum and is involved in excessive protein synthesis. |
Subtopic: Skeletal Muscle: Basic Anatomy |
80%
Level 1: 80%+
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The number of incorrectly matched pairs is/are:
1. 1
2. 2
3. 3
4. 4
| 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 |
73%
Level 2: 60%+
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A skeletal muscle motor unit is best described as:
1. a section of myofibrils from Z lines to Z lines
2. one nerve fiber and all the muscle fibers innervated by that nerve fiber
3. all of the nerves that unite to make a whole muscle contract
4. all of the fascicles innervated by several neurons
1. a section of myofibrils from Z lines to Z lines
2. one nerve fiber and all the muscle fibers innervated by that nerve fiber
3. all of the nerves that unite to make a whole muscle contract
4. all of the fascicles innervated by several neurons
Subtopic: Sliding Filament Theory | Muscle Contraction: Other Considerations |
65%
Level 2: 60%+
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Calcium released into the sarcoplasm during muscle contraction:
| 1. | binds to the actin and myosin and makes them work together. |
| 2. | breaks apart ATP to ADP and P. |
| 3. | removes the tropomyosin block. |
| 4. | causes the release of acetylcholine. |
Subtopic: Sliding Filament Theory |
62%
Level 2: 60%+
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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%
Level 1: 80%+
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Consider the given two statements:
| Statement I: | Repeated activation of the muscles can lead to fatigue. |
| Statement II: | Repeated activation of the muscles can lead to the accumulation of lactic acid due to anaerobic breakdown of glycogen in them. |
| 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: Energy for Muscle Contraction | Muscle Contraction: Other Considerations |
89%
Level 1: 80%+
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Bone and cartilage are specialised connective tissues where:
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 cartilage has a very hard matrix due to calcium salts in it. |
| II: | The bone has highly pliable matrix due to chondroitin salts. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Connective Tissue |
87%
Level 1: 80%+
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