1. Which of the following statements about movement and locomotion is correct?
| 1. |
All movements are locomotions |
| 2. |
All locomotions are movements |
| 3. |
Movements and locomotions are unrelated |
| 4. |
Movements and locomotions are identical |
2. The specialized cells exhibiting amoeboid movement in human body are:
1. Nerve cells and blood cells
2. Macrophages and leucocytes
3. Muscle cells and nerve cells
4. Epithelial cells and blood cells
3. Which type of muscle shows both striated appearance and involuntary nature?
1. Skeletal muscle
2. Smooth muscle
3. Cardiac muscle
4. Visceral muscle
4. In a muscle fiber, the thin filaments are made up of:
1. Only myosin
2. Actin and myosin
3. Actin, tropomyosin and troponin
4. Only actin
5. During muscle contraction:
1. H-zone increases in width
2. I-band width remains constant
3. A-band width decreases
4. I-band width decreases
6. The total number of bones in human axial skeleton is:
1. 126
2. 80
3. 206
4. 90
7. Which of these bones is NOT part of the cranial bones?
1. Frontal bone
2. Parietal bone
3. Maxilla
4. Occipital bone
8. The connection between ribs and sternum in true ribs is through:
1. Synovial joint
2. Fibrous joint
3. Hyaline cartilage
4. Elastic cartilage
9. Which of the following is a characteristic of red muscle fibers?
1. High glycogen content
2. Few mitochondria
3. High myoglobin content
4. Mainly anaerobic respiration
10. The human skull articulates with the vertebral column through:
1. Atlas vertebra
2. Axis vertebra
3. Two occipital condyles
4. Cervical vertebrae
11. Which of the following best describes amoeboid movement in human cells?
| 1. |
Movement using cilia and flagella |
| 2. |
Movement through pseudopodia formation and cytoplasmic streaming |
| 3. |
Contractile movement using actin-myosin filaments |
| 4. |
Movement through membrane undulation only |
12. Which protein masks the active binding sites for myosin on actin filaments in resting state?
1. Tropomyosin
2. G-actin
3. Troponin
4. F-actin
13. The globular head of myosin contains:
1. Only ATP binding sites
2. Only actin binding sites
3. Both ATP and actin binding sites with ATPase activity
4. Neither ATP nor actin binding sites
14. Red muscle fibers are characterized by:
1. High myoglobin content and few mitochondria
2. Low myoglobin content and many mitochondria
3. High myoglobin content and many mitochondria
4. Low myoglobin content and few mitochondria
15. The human skull is:
1. Monocondylic
2. Tricondylic
3. Dicondylic
4. Tetracondylic
16. Which of these bones are NOT part of the axial skeleton?
1. Skull bones
2. Vertebral column
3. Pelvic girdle
4. Sternum
17. True ribs are:
1. First 8 pairs of ribs
2. First 7 pairs of ribs
3. First 10 pairs of ribs
4. First 12 pairs of ribs
18. Which feature is unique to cardiac muscles?
1. Striated appearance
2. Voluntary control
3. Branched structure
4. Smooth appearance
19. The H-zone in a sarcomere represents:
1. Region of overlap between thick and thin filaments
2. Central part of thin filaments
3. Central part of thick filaments not overlapped by thin filaments
4. Region between two Z-lines
20. Muscle fatigue occurs due to:
1. Excess oxygen supply
2. Accumulation of lactic acid
3. Decrease in ATP production
4. Both b and c
21. The total number of bones in human skull excluding ear ossicles is:
1. 22
2. 23
3. 25
4. 29
22. White muscle fibers are characterized by:
1. High sarcoplasmic reticulum and aerobic respiration
2. Low sarcoplasmic reticulum and anaerobic respiration
3. High sarcoplasmic reticulum and anaerobic respiration
4. Low sarcoplasmic reticulum and aerobic respiration
23. The movement of cilia in trachea helps in:
| 1. |
Movement of food |
| 2. |
Removal of dust particles |
| 3. |
Blood circulation |
| 4. |
Hormone secretion |
24. Which type of protein is responsible for the dark bands (A-bands) in skeletal muscle fibers?
1. Actin
2. Myosin
3. Tropomyosin
4. Troponin
25. The functional unit of muscle contraction is:
1. Myofibril
2. Z-line
3. Sarcomere
4. H-zone
26. The thin filaments in muscle fibers are composed of:
1. Only G-actin monomers
2. F-actin and tropomyosin
3. F-actin, tropomyosin and troponin
4. Only myosin
27. What triggers muscle contraction at the neuromuscular junction?
1. Release of calcium ions
2. Release of acetylcholine
3. Formation of cross bridges
4. ATP hydrolysis
28. The human skull is described as dicondylic because:
1. It has two occipital condyles
2. It has two temporal bones
3. It has two parietal bones
4. It has two sets of bones - cranial and facial
29. Which of these bones are correctly matched with their category?
1. 8th rib - True rib
2. 11th rib - False rib
3. 9th rib - Floating rib
4. 7th rib - True rib
30. How many bones make up the human cranium?
1. 14
2. 22
3. 8
4. 6
31. Which component is NOT involved in the cross-bridge cycle?
1. ATP hydrolysis
2. Calcium binding to troponin
3. Myosin binding to actin
4. Tropomyosin binding to ATP
32. The number of vertebrae in human vertebral column is:
1. 33
2. 26
3. 24
4. 29
33. The ear ossicles are located in:
1. Outer ear
2. Middle ear
3. Inner ear
4. Eustachian tube
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Selected Qs - Locomotion and Movement - NCERT Exemplar Converted to MCQsContact Number: 8527521718