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NEET • BIOLOGY • LOCOMOTION AND MOVEMENT

Locomotion and movement practice · Mixed difficulty

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91 Medium

91 of 222

Understanding +4 | -1

Muscle A and Muscle B are of the same size, but muscle A is capable of much finer control than Muscle B. Which one of the following is likely to be true for muscle A?

View answer and explanation

Correct option: C

It is controlled by more neurons than muscle B.

Option C (It is controlled by more neurons than muscle B) is correct because finer control requires a smaller motor unit size, meaning more neurons innervate each muscle fiber.

92 Easy

92 of 222

Remembering +4 | -1

Fibrous joints in humans

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Correct option: C

Don’t allow any movement

Option C (Don’t allow any movement) is correct because fibrous joints are characterized by dense connective tissue that allows little to no movement.

93 Easy

93 of 222

Remembering +4 | -1

Elbow joint is an example of :

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Correct option: B

Pivot joint

Option C (Hinge joint) is correct because the elbow joint allows movement in one plane, similar to a hinge, enabling flexion and extension.

94 Easy

94 of 222

Understanding +4 | -1

Which of the following statements about the joints of humans is false?

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Correct option: D

Cartilaginous joints permits great movement

Option D (Cartilaginous joints permits great movement) is correct because cartilaginous joints allow for only slight movement, not great movement. Great movement is characteristic of synovial joints.

95 Medium

95 of 222

Remembering +4 | -1

Joints are the point of contact between
I. bones II. Cartilages and bones
III. bones and muscles IV. cartilage and muscles
Select the containing correct articles

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Correct option: A

I and II

Option A (I and II) is correct because joints are the points of contact between bones and between cartilages and bones.

96 Medium

96 of 222

Remembering +4 | -1

Muscles of alimentary canal are mainly

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Correct option: C

Unstriated and neurogenic

Option D (Unstriated and myogenic) is correct because the muscles of the alimentary canal are smooth (unstriated) and can initiate their own contractions (myogenic).

97 Easy

97 of 222

Remembering +4 | -1

Streaming of the cytoplasm/cyclosis is seen in

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Correct option: A

Amoeba

Option A is correct. Streaming of cytoplasm (cyclosis) is a characteristic feature of Amoeba.

98 Medium

98 of 222

Analyzing +4 | -1

Assertion: Calcium is required for skeletal muscle contraction.

Reason: Calcium influx releases acetylcholine at neuromuscular junction.

View answer and explanation

Correct option: B

If both assertion and reason are true but reason is not the correct explanation of assertion

Option C (Atlas) is correct because the atlas is a cervical vertebra and part of the axial skeleton, not the appendicular skeleton.

99 Medium

99 of 222

Remembering +4 | -1

Ligament is mainly made up of

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Correct option: D

Collagen

Option D (Collagen) is correct because ligaments are primarily composed of collagen fibers, which provide strength and flexibility.

100 Easy

100 of 222

Understanding +4 | -1

Select the correct option.

View answer and explanation

Correct option: D

There are seven pairs of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs.

Option D is correct because it accurately describes the classification of ribs based on their attachment to the sternum.

101 Hard

101 of 222

Understanding +4 | -1

Statement I Microtubules are formed only in animal cells. Statement II Microtubules are made up of a protein called myosin.

Choose the correct option

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Correct option: D

Both statements are incorrect.

Option D (Both statements are incorrect) is correct because microtubules are found in both animal and plant cells, and they are made of tubulin, not myosin.

102 Medium

102 of 222

Understanding +4 | -1

For how long, contraction of the muscles continues in sliding filament theory?

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Correct option: C

Till

C{a^2}^ +

present in sarcoplasm

Option C (Till

C{a^2}^ +

present in sarcoplasm) is correct because muscle contraction continues as long as calcium ions are present in the sarcoplasm to bind to troponin.

103 Easy

103 of 222

Remembering +4 | -1

Aerobic muscles called …A… and anaerobic muscles are called …B… . Here A and B refers to

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Correct option: A

A-red fibres; B-white fibres

Option A (A-red fibres; B-white fibres) is correct because red fibers are associated with aerobic respiration, and white fibers with anaerobic respiration.

104 Easy

104 of 222

Analyzing +4 | -1

Choose the odd one w.r.t. axial skeleton.

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Correct option: B

Tibia and fibula

Option B (Tibia and fibula) is the odd one out because tibia and fibula are part of the appendicular skeleton (lower limb), while the others are part of the axial skeleton.

105 Medium

105 of 222

Remembering +4 | -1

The thick filaments in the ‘A’ band are held together in the middle of this band by a thin fibrous membrane called –

View answer and explanation

Correct option: C

M – line

Option C (M – line) is correct because the M-line is a thin fibrous structure in the middle of the A band that holds the thick filaments together.

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106 Hard

106 of 222

Understanding +4 | -1

Which of the following is unlikely to happen during muscle contraction?

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Correct option: A

The size of thin filaments decrease while the size of thick filaments remains unchanged

Option A (The size of thin filaments decrease while the size of thick filaments remains unchanged) is correct because the size of neither thin nor thick filaments changes during muscle contraction; they slide past each other.

107 Medium

107 of 222

Analyzing +4 | -1

In humans which of the following are similar in one factor

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Correct option: D

2nd and 3rd

Option D (2nd and 3rd) is correct because both sacral and coccygeal vertebrae are fused in adults. Cervical vertebrae are not fused.

108 Medium

108 of 222

Analyzing +4 | -1

Which of the following would you not expect to find in both a skeletal muscle cell and a cardiac muscle cell?

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Correct option: C

Potassium channels that close slowly after an action potential.

Option C (Potassium channels that close slowly after an action potential) is correct because this characteristic is specific to cardiac muscle cells and contributes to their longer refractory period.

109 Medium

109 of 222

Understanding +4 | -1

Statement I: Locomotory structures need not be different from those affecting other types of movements.

Statement II: Locomotory strucutres are chiefly used for locomotion. They are also used for food collection, change in body postures, etc.

View answer and explanation

Correct option: C

Both statements I and II are correct

Option C (Both statements I and II are correct) is correct because locomotory structures can also be used for other functions, and they are indeed primarily used for locomotion but can have secondary roles.

110 Easy

110 of 222

Remembering +4 | -1

Which cells shows the amoeboid movement in blood

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Correct option: A

macrophages leucocytes

Option A is correct. Macrophages and leucocytes are the blood cells that exhibit amoeboid movement.

111 Medium

111 of 222

Understanding +4 | -1

Read the following statements w.r.t. muscle contraction and choose the option that states all the correct statements.
a. Actin and myosin filaments do not get short but rather slide passes each other
b. The size of A-band reduces c. Length of H-zone decreases

View answer and explanation

Correct option: C

a and c

Option C (a and c) is correct because during muscle contraction, actin and myosin slide past each other, and the H-zone decreases in size. The A-band remains the same size.

112 Easy

112 of 222

Analyzing +4 | -1

Find the mismatch from the following pairs.

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Correct option: A

Joint between carpal and metacarpal of thumb - Gliding joint

Option A is correct because the joint between the carpal and metacarpal of the thumb is a saddle joint, not a gliding joint, which allows for a wider range of motion.

113 Medium

113 of 222

Understanding +4 | -1

Low level of

C{a^{2 + }}

ions in muscles result in

View answer and explanation

Correct option: C

Both (a) or (b)

Option C (Both (a) or (b)) is correct because low calcium levels can lead to both rapid spasms and wild contractions due to the disruption of the muscle contraction cycle.

114 Easy

114 of 222

Understanding +4 | -1

Identify the muscle which represents the following characteristics and choose the correct option accordingly
I. Transportation of food through the digestive tract
II. Transportation of gametes through the genital tract

View answer and explanation

Correct option: B

Visceral muscles

Option B (Visceral muscles) is correct because visceral muscles, also known as smooth muscles, are responsible for involuntary movements such as food and gamete transportation.

115 Hard

115 of 222

Remembering +4 | -1

The strongest muscle in the human is

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Correct option: D

masseter

Option D (masseter) is correct because the masseter muscle, located in the jaw, is responsible for chewing and is considered one of the strongest muscles in the human body based on its size and force generation.

116 Easy

116 of 222

Understanding +4 | -1

Assertion (A): The most abundant joints in human body are synovial joints.
Reason (R): Gliding joints offer movement in all the three planes/axis.

View answer and explanation

Correct option: C

If A is true, but R is false

Option C (If A is true, but R is false) is correct because synovial joints are the most abundant, but gliding joints do not offer movement in all three planes.

117 Medium

117 of 222

Remembering +4 | -1

The region at the ends of the A-band of two adjoining sarcomeres is called

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Correct option: C

I-band

Option C (I-band) is correct because the I-band is the light band that contains only actin filaments and is located at the ends of the A-band of two adjoining sarcomeres.

118 Hard

118 of 222

Understanding +4 | -1

Which of the following pair is correctly matched?

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Correct option: D

Gliding join - Between zygapo-physes of the successive vertebrae

Option D is correct because gliding joints are indeed found between the zygapophyses of successive vertebrae, allowing for limited movement.

119 Easy

119 of 222

Understanding +4 | -1

What is the purpose of locomotion performed by animals?
I. Search of food
II. Search of shelter
III. Search of mate
IV. Search of suitable breeding grounds
V. Search of favourable climate conditions
VI. Escaping from enemies/predators
Choose the correct option

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Correct option: D

All of these

Option D (All of these) is correct because animals perform locomotion for all the listed purposes: searching for food, shelter, mates, breeding grounds, favorable climate, and escaping predators.

120 Easy

120 of 222

Remembering +4 | -1

The lactic acid generated during muscle contraction is converted to glycogen in

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Correct option: D

Liver

Option D (Liver) is correct because the liver converts lactic acid to glycogen via the Cori cycle.

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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Locomotion and movement practice · Mixed difficulty

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