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NEET • BIOLOGY • LOCOMOTION AND MOVEMENT

Locomotion and movement practice · Mixed difficulty

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Showing 61-90 of 222 questions

61 Medium

61 of 222

Understanding +4 | -1

Choose the correct statements for flagellar movements

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Correct option: D

All of the above

Option D (All of the above) is correct because flagella are found in choanocytes of sponges, perform locomotion in euglenoids, and help in the circulation of blood (though this is less common).

62 Hard

62 of 222

Remembering +4 | -1

The functional unit of the contractile system in the striped muscle is:

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Correct option: D

Sarcomere

Option D (Sarcomere) is correct because the sarcomere is the basic functional unit responsible for muscle contraction in striated muscles.

63 Medium

63 of 222

Remembering +4 | -1

Gout happens due to accumulation of is joints

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Correct option: B

Uric acid crystals

Option B (Uric acid crystals) is correct because gout is caused by the accumulation of uric acid crystals in the joints.

64 Medium

64 of 222

Analyzing +4 | -1

Find the odd one out from the following

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Correct option: C

Scapula of shoulder bone, sternum, cranial bones, vertebrae

Option C (Scapula of shoulder bone, sternum, cranial bones, vertebrae) is the odd one out because it includes axial skeleton bones, while the others are appendicular skeleton bones.

65 Easy

65 of 222

Remembering +4 | -1

Ligament connects

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Correct option: A

Bone to bone

Option A (Bone to bone) is correct because ligaments are connective tissues that specifically connect bones to other bones at joints.

66 Hard

66 of 222

Understanding +4 | -1

The joint between prezygapophysis and post zygapophysis of adjacent vertebrae is same as that present between

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Correct option: B

Ribs and Sternum

Option B is correct because the joint between the ribs and sternum, like that between prezygapophysis and post zygapophysis, allows for limited gliding movement.

67 Medium

67 of 222

Remembering +4 | -1

In Paramecium, cilia helps in

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Correct option: C

Both (a) and (b)

Option C is correct. Cilia in Paramecium aid in both locomotion and the movement of food into the cytopharynx.

68 Easy

68 of 222

Understanding +4 | -1

Which of the following has alternate striations and is branched?

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Correct option: C

Heart muscle involuntary

Option C (Heart muscle involuntary) is correct because cardiac muscle has striations and is branched, and it functions involuntarily.

69 Hard

69 of 222

Remembering +4 | -1

All or None law is associated with

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Correct option: D

All of the above

Option D (All of the above) is correct because the All or None law applies to skeletal muscle fibers, neurons, and cardiac muscle fibers.

70 Medium

70 of 222

Remembering +4 | -1

The contractile protein of skeletal muscle involving ATPase activity as

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Correct option: B

Myosin

Option B (Myosin) is correct because myosin possesses ATPase activity, which is essential for muscle contraction.

71 Easy

71 of 222

Remembering +4 | -1

Chemical ions responsible for muscle contraction are

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Correct option: D

C{a^2}^ +

and

M{g^{2 + }}

Option D (

C{a^2}^ +

and

M{g^{2 + }}

) is the closest correct answer, although magnesium's role is less direct than calcium's. Calcium is essential for muscle contraction, and magnesium is involved in energy production (ATP) required for muscle function.

72 Hard

72 of 222

Remembering +4 | -1

Which is function of calcium

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Correct option: D

All of the above

Option D (All of the above) is correct because calcium plays a crucial role in blood clotting, muscular contraction, and nerve conduction.

73 Medium

73 of 222

Remembering +4 | -1

Skeletal muscles are closely associated with the …A… components of the body. They have …B… appearance under the microscope and hence are called …C… muscles
Choose the correct options to fill A, B and C, so as to complete the given NCERT statement

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Correct option: C

A-skeletal, B-stripped, C-striated

Option C (A-skeletal, B-stripped, C-striated) is correct because skeletal muscles are associated with the skeletal system, have a stripped appearance, and are thus called striated muscles.

74 Medium

74 of 222

Remembering +4 | -1

Muscle fatigue is due to

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Correct option: A

Lactic acid

Option A (Lactic acid) is correct because the accumulation of lactic acid during anaerobic respiration leads to muscle fatigue.

75 Medium

75 of 222

Understanding +4 | -1

Statements about the mechanism of muscle contraction are given below.
I. Acetylcholine is released when the neural signal reaches the motor end plate.
II. Muscle contraction is initiated by a signal sent by CNS via a sensory neuron.
III. During muscle contraction isotropic band gets elongated.
IV. Repeated activation of the muscles can lead to lactic acid accumulation.
Identify the correct statement.

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Correct option: A

I and IV are correct

Option A (I and IV are correct) is correct because acetylcholine release initiates muscle contraction, and repeated muscle activation can lead to lactic acid accumulation.

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76 Easy

76 of 222

Understanding +4 | -1

Choose wrong statement

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Correct option: D

Scapula is ramboid bone situated in ventral part of thorax

Option D (Scapula is ramboid bone situated in ventral part of thorax) is correct because the scapula is located on the dorsal, not ventral, part of the thorax and is triangular, not rhomboid.

77 Medium

77 of 222

Analyzing +4 | -1

Which of the following statements are wrong with reference to muscles?
I. Cardiac fibres are branched with one or more nuclei
II. Smooth muscles are unbranched and cylindrical
III. Striated muscles never performs anaerobic respiration
IV. Cardiae muscles are non-striated
Correct option with all wrong statements is-

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Correct option: A

II and III

Option A (II and III) is correct because statements II and III are factually incorrect regarding muscle types and their respiration.

78 Medium

78 of 222

Remembering +4 | -1

Which muscle band remains unchanged during the contraction and relaxation of the skeletal muscle?

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Correct option: C

Option C (A) is correct because the A band's length remains constant during muscle contraction and relaxation.

79 Hard

79 of 222

Understanding +4 | -1

Difference between the femur of rabbit and femur of frog is:

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Correct option: A

Haversian system of canals is found in the shaft of femur of rabbit, not of frog

Option A (Haversian system of canals is found in the shaft of femur of rabbit, not of frog) is correct because the Haversian system is characteristic of mammalian bone, like that of a rabbit, and is absent in amphibians like frogs.

80 Easy

80 of 222

Understanding +4 | -1

Which of the following statements regarding locomotion and movements is wrong?

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Correct option: B

All the movements are locomotion

Option B (All the movements are locomotion) is correct because not all movements result in a change of location, which is the definition of locomotion.

81 Hard

81 of 222

Understanding +4 | -1

The contraction of the muscle continues in sliding filament theory

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Correct option: A

till ATP binds to myosin head

Option A (till ATP binds to myosin head) is correct because ATP binding to the myosin head is required for the detachment of myosin from actin, leading to muscle relaxation, and the cessation of contraction.

82 Medium

82 of 222

Understanding +4 | -1

Select the wrong set of statements with respect to muscles
I. Z-line is present in the centre of the light band
II. Thin filaments are firmly attached to the M-line
III. The central part of the thick filaments, not overlapped by thin filaments is called Z-band
IV. Light band contains only thin filaments 

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Correct option: B

II and III

Option B (II and III) is correct because thin filaments are attached to the Z-line, not the M-line, and the H-zone, not the Z-band, is the central part of the thick filaments not overlapped by thin filaments.

83 Easy

83 of 222

Understanding +4 | -1

Osteoporosis, an age-related disease of the skeletal system, may occur due to

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Correct option: C

Decreased level of estrogen

Option C (Decreased level of estrogen) is correct because decreased estrogen levels, particularly after menopause, contribute to bone loss and osteoporosis.

84 Easy

84 of 222

Understanding +4 | -1

Which sequence explains the level of organisation found in the human body?

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Correct option: B

Muscle cell

\rightarrow

muscle tissue

\rightarrow

muscle

\rightarrow

muscular system

Option B (Muscle cell

\rightarrow

muscle tissue

\rightarrow

muscle

\rightarrow

muscular system) is correct because it represents the correct hierarchical organization from the smallest to the largest level.

85 Easy

85 of 222

Remembering +4 | -1

Human skeletal system consists of

View answer and explanation

Correct option: C

206 bones

Option C (Assertion is true, Reason is false) is correct because the H-zone contains only thick filaments, but the rest of the A-band contains both thick and thin filaments.

86 Easy

86 of 222

Remembering +4 | -1

Locomotion requires a perfect coordinated activity of

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Correct option: D

All of these

Option D is correct. Locomotion requires the coordinated activity of the muscular, skeletal, and neural systems.

87 Hard

87 of 222

Remembering +4 | -1

Humans have the most prominent sesamoid bone, the ______

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Correct option: D

Patella

Option D (Patella) is correct because the patella, or kneecap, is the most prominent sesamoid bone in humans.

88 Easy

88 of 222

Remembering +4 | -1

A disease associated with joint is humans

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Correct option: B

Arthritis

Option B (Arthritis) is correct because arthritis is a disease specifically associated with joints in humans.

89 Medium

89 of 222

Analyzing +4 | -1

Identify a mismatch from the following regarding skeleton in an adult human being

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Correct option: D

Pectoral girdle – Sternum, scapula and clavicle

Option D (Pectoral girdle – Sternum, scapula and clavicle) is a mismatch because the sternum is part of the axial skeleton, not the pectoral girdle. The pectoral girdle consists of the scapula and clavicle.

90 Medium

90 of 222

Understanding +4 | -1

What will happen if ligaments are cut or broken?

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Correct option: C

Bone will become unfixed

Option C (Bone will become unfixed) is correct because ligaments connect bone to bone, providing stability to joints. If they are cut or broken, the joint loses its stability.

Revision notes and key takeaways

Review LOCOMOTION AND MOVEMENT in your textbook or class notes, then use this set to check your understanding.

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