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Zoology MCQS[NEET-2021 to 2022]-Locomotion and Movement
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1. Mark the correct statement?
All cells have mitochondria
All non striated muscles are involuntary
Cardiac muscles are not striated
Animal cell contains chloroplast
2. The cross arm that forms the cross bridges during muscle contraction is formed by
HMM
Troponin
LLM
Both A and C
3. During resting stage the binding site of action for myosin remains masked by
HMM
Troponin
LLM
None
4. The macrophages in human body exhibit
No movement
movement with blood
peristalsis movement
Amoeboid movement
5. Mark the incorrect statement in the following
Microfilaments are involved in amoeboid
All movement lead to locomotion
Cilliary movement help in passage of ova
None of the above/ More than one of the above
6. Which of the following is not the feature of red muscle fibres
They have plenty of mitochondria
They have high content of Myoglobin
They have high amount of Sarcoplasmic reticulum
They are called aerobic muscles
7. Streaming of cytoplasm is seen in
Amoeba
Leucocytes
Macrophages
All
8. Which of the following statements is correct?
Locomotion is not a voluntary movement
Cytoplasmic streaming is caused by contracting microfilament
Cytoplasmic streaming helps in pseudopodia formation
B and C
9. Which o the following statement about the skeletal muscles is correct?
They are striated muscles
They are voluntary muscles
They are primarily involved in locomotory actions
All
10. Heart muscles are
Branched
Not fatigued
Striated and involuntary
All
11. The source of Ca++ for the muscle is
Sarcolemma
T-tubule
Sarcosome
Sarcoplasmic reticulum
12. The fascia surrounding a muscle is made up of-
Cartilage
Collagenous connective tissue
Adipose tissue
Blood vessels
13. Contractile fibrils of muscle are called-
Neurofibrils
Yellow fibres
Red fibres
Myofibrils
14. Myofibrils show alternate dark and light bands in
Cardia muscles
Striped muscle
Smooth muscles
a and b
15. which one the smallest one?
muscle fibres
myofibril
Actin
sarcomere
16. Z-line divides the myofibrils into-
Sarcomere
Microtubules
Sarcolemma
Sarcosome
17. Sarcomere is the area between
2 H-zones
2 M-lines
2 A-zones
2 Z-lines
18. Light bands contain actin and are called-
A-bands of isotropic
A-bands or Anistropic bands
I-bands or isotropic bands
I-bands of Anisotropic
19. The region between the ends of the A-bands of 2 adjoining sarcomeres is called
The Z-bands
The I-bands
The T-tubule
The H-bands
20. An individual sarcomere consists of
A stack of actin fibres
A stack of myosin units
Overlapping actin and myosin
None
21. One myosin filament in the myofibril of skeletal muscle fibres is surrounded by how actin filaments
6
9
6
5
22. Tropomysin is moved by which of following protiens
Calmodulin
Troponin
Actin
None
23. The action potential that triggers a muscle contraction travels deep within the muscle cell by means of
Sarcoplasmic reticulum
Transverse tubules
Synapse
Motor and plates
24. Motor end plate is a
Neuromuscular junction
Plate of motor neuron
Dendron of motor neuron
Gradient of proton motive force
25. The energy for muscle contraction is most directly obtained from
ATP
Anaerobic respiration
Aerobic respiration
Phosphocreatine
26. According to the sliding filament theroy
Actin ( thin filament ) moves on myosin ( thick filament
Myosin moves on actin
Both myosin amd actin moves each other
None of these
27. Relaxation of muscle is due to
Pumping of ca++ into sacroplasmic cisternea
Prasense of ATP ml
Confirmational change in troponin and masking if actin filaments
All
28. When a skeletal muscle shortens during contraction which of these statements is fales
The I - band shortens
The A - band shortens
The H - zone becomes narrow
The sarcomeres shorten
29. The muscle band that remains unchanged during muscle of contraction and relaxation of the skeletal muscle is
I
A
H
Z- line
30. Skeletal system consists of
Olny bones
Only cartilage
A framework of bones and a few cartilage
A framework of cartilage and a few bones
31. Contractile unit the muscle is part of myofibril between
Z - line and I - band
Z- line and I - line
Z- line and A - band
A - bond and I - band
32. The number of thick myofilaments surrounding single thin myofilament ( actin ) are
2
3
6
4
33. At rest when muscle is relaxed the thin filaments interdigiate with the thick filaments only
Outside A - band
Outside H - band
Inside A - band
Inside M - line
34. The ion that must be present in adequate amount for binding of cross bridges with actin is
Ca ++
Na +
K+
Mg ++
35. Anaerobin work becomes painful due to accumulation of
Ca++ ions
Myosin
Lactic acid
Creatine phosphate
36. Type of movement shown by paramecium is
Amoeboid
Cillary
Flagellar
Muscular
37. Which of the following can be taken as a character of skeletal muscle fibre
Excitability
Extensibility
Contractibility
All of these
38. Each fasciculus of skeleetal muscle fibre is surrounded by
Epimycium
Perimycium
Endomycium
Sarclemma
39. What types of muscles are found in the reproductive system in human?
involuntary muscles
smooth muscles
voluntary muscles
both A and B
40. The connective tissue on the outer surface of a bone is called as
Periosteum
pericardium
peritoneum
None
41. Locomotory organs in starfish are
Lungs
Appendages
Skin
Tube feet
42. Muscle that bends one part over another is called
Overlaping
Contraction
Flexor
Abduction
43. Coronary process is a part of
cranium
heart
upper jaw
lower jaw
44. Foramen magnum and occipital condyles are found in
Occipital bone
Incus bone
Parital bone
Squamosal bone
45. Muscle that brings the limbs towards midline of body is known as
Abductor
Extensor
Adductor
Flexor
46. One myosin filament in the myofibril of skeletal muscale fibre is surrounded by how many actin filaments
Two
Four
Six
Eight
47. Abductor muscles is antagonist of
Adductor
Rotator
Flexor
Pronator
48. Functional unit of a muscle fibre is
Thick filament
Sarcomere
Thin filament
Myofibrils
49. The only movable bone in the skull is
Maxilla
Mandible
Frontal
Occipital
50. Which of the following is the regulatory muscle protein having double chain structure
Troponin
Actin
Myosin
Tropomyosin
51. Elbow joint is a type of which joint?
Planar joint
Condyloid Joint
Hinge joint
Ball and Socket joint
52. Time taken by a singal muscle twitch is
1 second
0.1 second
10 seconds
2 seconds
53. Sutures present between various bones of skull are ___ joint ?
Planar
Cartilaginous
Saddle
Fibrous
54. Cartilaginous joints
permit free movement
Are not found in symphysis
Are found in the bodies of vertebrae
All
55. The constraction of muscle of shortest duration is seen in
Jaws
Eye lide
Heart
Intestine
56. The muscle fatigue occurs due to accumulation of
CO2
Lactic period
Creatine phosphate
Myosin ATpase
57. Hinge joints
are cartilaginous joints
Permit movements in multi direction
Not found in knee
None
58. In a contracted skeletal muscle fibre
M line disappears
H- zone elongates
I - band remains constant
A- band disappears
59. Joints between carpals are
Fibrous joints
Cartilaginous joints
Gliding joints
Planar joints
60. In old age stiffness of joints is due to the
Decrease in synovial fluid
Hardening of bones
Decrease in Calcium
None
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