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Test: Locomotion & Movement - 2 - NEET MCQ


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20 Questions MCQ Test Biology Class 11 - Test: Locomotion & Movement - 2

Test: Locomotion & Movement - 2 for NEET 2024 is part of Biology Class 11 preparation. The Test: Locomotion & Movement - 2 questions and answers have been prepared according to the NEET exam syllabus.The Test: Locomotion & Movement - 2 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Locomotion & Movement - 2 below.
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Test: Locomotion & Movement - 2 - Question 1

What is the type of movable joint present between the atlas and axis?

Detailed Solution for Test: Locomotion & Movement - 2 - Question 1

Pivot joint: Between atlas and axis called atlanto-axial joint.

Test: Locomotion & Movement - 2 - Question 2

The property which doesn’t belong to muscle fibres is :

Detailed Solution for Test: Locomotion & Movement - 2 - Question 2

Muscle fibres have properties of excitability, elasticity and contractility but conductivity is not present in muscles fibers. These fibres help in movement of different body parts.

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Test: Locomotion & Movement - 2 - Question 3

Which of the following is not a part of hip bone?

Detailed Solution for Test: Locomotion & Movement - 2 - Question 3

Hip bone or pelvic girdle consists of two coxal bones. Each coxal bone is formed by the fusion of three bones- ilium, ischium and pubis

Test: Locomotion & Movement - 2 - Question 4

Aging will be characterised by :

Detailed Solution for Test: Locomotion & Movement - 2 - Question 4

Aging will be characterized by decreased muscle size and increased muscle fat. With aging muscle loose its contractile and elasticity nature. Fats are deposited in muscle fibres the further decrease contracting ability.

Test: Locomotion & Movement - 2 - Question 5

Myoglobin is found to be :

i. highly abundant in muscles of whales and seals .
ii. exhibiting cooperative binding of oxygen.
iii. allowing organisms to hold their breathe longer underwater.

Detailed Solution for Test: Locomotion & Movement - 2 - Question 5

Myoglobin is found to be highly abundant in muscles of whales and seals. Myoglobin being oxygen and iron binding protein allowing organisms to hold their breathe longer underwater.

Test: Locomotion & Movement - 2 - Question 6

Muscular dystrophy is a genetic disorder. MD :

i. It is genetically inherited.
ii. Some people get affected by MD due to mutated dystrophin gene and nutritional defects at the pre-natal age.
iii. Predominantly males are affected by DMD although females can be carriers of it.
iv. Dystrophin is a protein found in tendons.

Detailed Solution for Test: Locomotion & Movement - 2 - Question 6

Muscular dystrophy is a genetic disorder and genetically inherited. It may also occurs due to mutated dystrophin gene and nutritional defects at the pre-netal age. Males are more affected by MD although females can be carriers of it.

Test: Locomotion & Movement - 2 - Question 7

Polymerisation of actin monomers involves ATP hydrolysis as shown in the following figure : [choose the correct one]

Detailed Solution for Test: Locomotion & Movement - 2 - Question 7

Each ‘F’ actin is a polymer of monomeric ‘G’ (Globular) actins.

Test: Locomotion & Movement - 2 - Question 8

How many regions is the vertebral column divided into?

Detailed Solution for Test: Locomotion & Movement - 2 - Question 8

Humans possess 26 vertebrae in the vertebral column. These vertebrae are divided into five different regions, namely the cervical (7), thoracic (12), lumbar (5), sacral (1-fused) and coccygeal (1-fused) regions.

Test: Locomotion & Movement - 2 - Question 9

Read the following about joint replacement therapy :

i. Artificial joints are made from the similar material that makes our bones.
ii. Metal or plastic is used to prepare an artificial joint.
iii. Following figure shows a disfunctional joint in the knee.
iv. Above figure shows an artificial joint in the knee.

Detailed Solution for Test: Locomotion & Movement - 2 - Question 9

Artificial joints are made up of metal and plastic. The figure shown above shows artificial joint in the knee.

Test: Locomotion & Movement - 2 - Question 10

Detailed Solution for Test: Locomotion & Movement - 2 - Question 10

Test: Locomotion & Movement - 2 - Question 11

The upright posture in humans is facilitated by :

Detailed Solution for Test: Locomotion & Movement - 2 - Question 11

The upright posture in human is facilitated by massive hind limbs bones that makes broad feet and pelvis to withhold the weight of whole body.

Test: Locomotion & Movement - 2 - Question 12

Sachin suffers from hypoparathyroidism. This can lead him to :

Detailed Solution for Test: Locomotion & Movement - 2 - Question 12

Hypoparathryrodism is the condition in which body secretes abnormally low level of parathyroid hormone. This deficiency may lead to hypocalcemia and tatany.

Test: Locomotion & Movement - 2 - Question 13

Look at the following figure of movement of the thin filaments

The label x, y, and z are respectively

Detailed Solution for Test: Locomotion & Movement - 2 - Question 13

The label x is H-zone, y is I band and z is A band.

Test: Locomotion & Movement - 2 - Question 14

Each pectoral girdle :
i. has 2 pairs of bones, a pair of clavicle and a pair of scapula.
ii. scapula contains expanded process and glenoid cavity, the latter is for articulation of the head of humerus.

Detailed Solution for Test: Locomotion & Movement - 2 - Question 14

Statement 1: Each pectoral girdle has two pairs of bones: a pair of clavicles and a pair of scapulae. The pectoral girdle, also known as the shoulder girdle, is a skeletal structure that connects the upper limb to the axial skeleton.
Statement 2: The head of the humerus bone articulates with the glenoid cavity of the pectoral girdle.
Hence both are correct.

Test: Locomotion & Movement - 2 - Question 15

Which disorder is caused due to wild contractions in muscles?

Detailed Solution for Test: Locomotion & Movement - 2 - Question 15

Tetany is caused due to rapid spasms (wild contractions) in muscle due to low Ca++ inbody fluid.

Test: Locomotion & Movement - 2 - Question 16

Read the following statements about muscle contraction in humans :
i. chemical energy is converted into mechanical energy during muscle contraction and the chemical is a neurotransmitter.
ii. a neurotransmitter acetylcholine at motor end plate converts electrical energy into mechanical energy.
iii. in a contracted muscle, volume remains the same.
iv. a contracted muscle becomes shorter and thicker.

Detailed Solution for Test: Locomotion & Movement - 2 - Question 16

The chemical energy is converted into mechanical energy during muscle contraction and the chemical is a neurotransmitter. In a contracted muscle, volume remains the same and a contracted muscle becomes shorter and thicker.

Test: Locomotion & Movement - 2 - Question 17

Match the following bones and their synonyms :

Detailed Solution for Test: Locomotion & Movement - 2 - Question 17

Hip bone is called as innominate bone, kneebone is called as patella, collarbone is called as clavicle and immovable joint is called suture.

Test: Locomotion & Movement - 2 - Question 18

During vigorous exercise :

i. lactic acid accumulates in muscle cells to meet its energy needs immediately.
ii. lactic acid is formed by anaerobic respiration hence oxygen consumption by muscles is reduced.
iii. This reduction in oxygen consumption is called oxygen debt of muscle.
Which of the following statement is Correct ?

Detailed Solution for Test: Locomotion & Movement - 2 - Question 18

During vigorous exercise, lactic acid accumulates in muscles cells to meet the energy requirement of muscle cell. Lactic acid is formed due to insufficient availability of oxygen. Breathing rate increases due to the high  rate of metabolism. The increased metabolic rate needs a huge amount of oxygen, which can be provided by increasing the rate of respiration.

Test: Locomotion & Movement - 2 - Question 19

Myasthenia gravis leads to fatigue and weakness. It is not :

Detailed Solution for Test: Locomotion & Movement - 2 - Question 19

Myasthenia gravis is an auto immune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle.

Test: Locomotion & Movement - 2 - Question 20

Read the following A to D statements and select the option that contains both correct statements:
A. Z-line is present in the centre of the light band.
B. Thin filaments are firmly attached to the M-line
C. The central part of thick filaments, not overlapped by thin filaments is called Z-band
D. Light band contains only thin filaments

Detailed Solution for Test: Locomotion & Movement - 2 - Question 20
  • The light bands contain actin and is called Isotropic band, whereas the dark band called ‘A’ or Anisotropic band contains myosin.
  • Actin filaments are thinner as compared to the myosin filaments, hence are commonly called thin and thick filaments respectively.
  • In the centre of each ‘I’ band is an elastic fibre called ‘Z’ line which bisects it.
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