Locomotion And Movement — DPP 1

20 NEET questions from Locomotion And Movement, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

Attempt this test free 20 questions · 30 minutes · +80 marks
1
Assertion (A): Arthritis or inflammation of a joint makes the joint movements painful.
Reason (R): In gout, inflammation of joints occur due to accumulation of calcium carbonate crystals.
  1. A Both Assertion (A) and Reason (R) are true and the Reason (R) is a correct explanation of the Assertion (A).
  2. B Both Assertion (A) and Reason (R) are true but Reason (R) is not a correct explanation of the Assertion (A).
  3. C Assertion (A) is true but the Reason (R) is false.
  4. D Assertion (A) is false but the Reason (R) is true.
Show answer

Correct answer: C

2
Muscles contribute to about $\_\_\_\_$ \% of the body weight of a human adult.
  1. A $14-15$
  2. B $20-25$
  3. C $40-50$
  4. D $30-40$
Show answer & explanation

Correct answer: C

About $40-50$ per cent of the body weight of a human adult is contributed by muscles.
Therefore, option (3) is the correct answer.
3
Assertion (A): Muscle contraction is initiated by a signal sent by the central nervous system(CNS) via a motor neuron.
Reason (R): A motor neuron alongwith the muscle fibres connected to it constitute a neuromuscular junction.
  1. A Both Assertion (A) and Reason (R) are true and the Reason (R) is a correct explanation of the Assertion (A).
  2. B Both Assertion (A) and Reason (R) are true but Reason (R) is not a correct explanation of the Assertion (A).
  3. C Assertion (A) is true but the Reason (R) is false.
  4. D Assertion (A) is false but the Reason (R) is true.
Show answer

Correct answer: C

4
Which type of movement is exhibited by cells like macrophages and leucocytes in the human body?
  1. A Ciliary movement
  2. B Muscular movement
  3. C Amoeboid movement
  4. D Flagellar movement
Show answer

Correct answer: C

5
During muscular contraction, the;
  1. A I-band will decrease in length.
  2. B A-band will decrease in Length.
  3. C Z-line will increase in length.
  4. D H-zone will increase in length.
Show answer

Correct answer: A

6
What are the individual components that make up a muscle bundle?
  1. A Sarcoplasmic reticulum
  2. B Muscle fibres
  3. C Cilia
  4. D Ligaments
Show answer

Correct answer: B

7
The dark bands (A-bands) of a skeletal muscle are known as;
  1. A isotropic bands
  2. B anisotropic bands
  3. C intercalated disc
  4. D cross bridges
Show answer

Correct answer: B

8
Assertion (A): Cranium allows no movement.
Reason (R): Fibrous joint is present in cranium.
  1. A Both Assertion (A) and Reason (R) are true and the Reason (R) is a correct explanation of the Assertion (A).
  2. B Both Assertion (A) and Reason (R) are true but Reason (R) is not a correct explanation of the Assertion (A).
  3. C Assertion (A) is true but the Reason (R) is false.
  4. D Assertion (A) is false but the Reason (R) is true.
Show answer

Correct answer: A

9
Select the correct statement.
  1. A Movement of our limbs, jaws, tongue etc. require ciliary movement.
  2. B Macrophages and leucocytes in blood exhibit amoeboid movement.
  3. C Locomotion does not require a coordinated activity of muscular, skeletal and neural systems.
  4. D All of these
Show answer

Correct answer: B

10
Assertion (A): Ball and socket joints are the most mobile joints.
Reason (R): Synovial fluid is present in synovial joints.
  1. A Both Assertion (A) and Reason (R) are true and the Reason (R) is a correct explanation of the Assertion (A).
  2. B Both Assertion (A) and Reason (R) are true but Reason (R) is not a correct explanation of the Assertion (A).
  3. C Assertion (A) is true but the Reason (R) is false.
  4. D Assertion (A) is false but the Reason (R) is true.
Show answer

Correct answer: B

11
Spreading of action potential through the muscle fibre causes the release of which ions into the sarcoplasm?
  1. A Calcium
  2. B Cobalt
  3. C Zinc
  4. D Copper
Show answer & explanation

Correct answer: A

Action potential spreads through the muscle fibre and causes the release of calcium ions into the sarcoplasm. Increase in $\mathrm{Ca}^{++}$level leads to the binding of calcium with a subunit of troponin.
Therefore, option (1) is the correct answer.
12
The globular head and a short arm together is called the;
  1. A heavy meromyosin (HMM).
  2. B light meromyosin (LMM).
  3. C cross arm.
  4. D Both (1) and (3)
Show answer & explanation

Correct answer: D

The globular head with a short arm is called the heavy meromyosin (HMM). The HMM component projects outwards at regular distance and angle from each other from the surface of a polymerised myosin filament and is known as cross arm.
Therefore, option (4) is the correct answer.
13
In which of the following organisms do the same structures perform both locomotion and other types of movements?
  1. A Amoeba and Paramoecium
  2. B Paramoecium and Hydra
  3. C Hydra and Amoeba
  4. D Humans and Amoeba
Show answer & explanation

Correct answer: B

In Paramoecium, cilia helps in the movement of food through cytopharynx and in locomotion as well. Hydra can use its tentacles for capturing its prey and also use them for locomotion.
Therefore, option (2) is the correct answer.
14
The contractile property of which type of tissue is essential for locomotion in human beings?
  1. A Nervous tissue
  2. B Epithelial tissue
  3. C Muscular tissue
  4. D Connective tissue
Show answer

Correct answer: C

15
A common collagenous connective tissue layer which holds the number of muscle bundles;
  1. A Fascicle
  2. B Fascia
  3. C Myofibrils
  4. D None of these
Show answer & explanation

Correct answer: B

Each organised skeletal muscle in our body is made of a number of muscle bundles or fascicles held together by a common collagenous connective tissue layer called fascia.
Therefore, option (2) is the correct answer.
16
What is the function of fascia in skeletal muscles?
  1. A To contract the muscle fibres.
  2. B To hold the muscle bundles together.
  3. C To store energy for muscle contraction.
  4. D To transport nutrients to muscle cells.
Show answer

Correct answer: B

17
Which of the following joints is found between the humerus and pectoral girdle?
  1. A Saddle joint
  2. B Ball and socket joint
  3. C Fibrous
  4. D Hinge joint
Show answer & explanation

Correct answer: B

Humerus and pectoral girdle are connected with the help of ball and socket joint.
Therefore, option (2) is the correct answer.
18
Which of the following disorders affects the neuromuscular junction leading to fatigue and weakening?
  1. A Arthritis
  2. B Muscular dystrophy
  3. C Osteoporosis
  4. D Myasthenia gravis
Show answer & explanation

Correct answer: D

Myasthenia gravis is an autoimmune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle.
Therefore, option (4) is the correct answer.
19
How many bones form the appendicular skeleton?
  1. A 80
  2. B 120
  3. C 126
  4. D 100
Show answer & explanation

Correct answer: C

Skeletal system is made up of 206 bones and a few cartilages. It is grouped into two principal divisions-the axial (consists of 80 bones) and the appendicular skeleton (consists of 126 bones).
Therefore, option (3) is the correct answer.
20
Visceral muscles are involved in which of the following activities?
  1. A Locomotion and body posture changes
  2. B Heartbeat regulation
  3. C Transportation of food through the digestive tract
  4. D Control of skeletal movement
Show answer

Correct answer: C

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