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NEET BIOLOGY Locomotion and MovementMedium

Question

Which of the following is a correct match for disease and its symptoms?

A

Muscular dystrophy: An auto immune disorder causing progressive degeneration of skeletal muscle

B

Arthritis: Inflamed joints

C

Tetany: High Ca2+ level causing rapid spasms

D

Myasthenia gravis: Genetic disorder resulting in weakening and paralysis of skeletal muscle

Step-by-Step Solution

According to the text, Arthritis is correctly defined as the 'Inflammation of joints'. The other options are incorrect matches based on the provided definitions:

  • Myasthenia gravis is an auto-immune disorder (not genetic) affecting the neuromuscular junction.
  • Muscular dystrophy is a progressive degeneration of skeletal muscle mostly due to a genetic disorder (not auto-immune).
  • Tetany is caused by low Ca2+ levels in body fluid (not high).

Exam Context & Concepts Covered

This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Locomotion and Movement. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

BIOLOGY Locomotion and Movementfollowingcorrectdiseasesymptoms

More Locomotion and Movement Questions

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The contractile protein of skeletal muscle involving ATPase activity is:

A.tropomyosin
B.myosin
C.α-actinin
D.troponin
EasySolve

Gout is a type of disorder which leads to:

A.Inflammation of joints due to accumulation of uric acid crystals
B.Weakening of bones due to decreased bone mass
C.Inflammation of joints due to cartilage degeneration
D.Weakening of bones due to low calcium level
EasySolve

Match List I with List II: List I A. Fibrous joints B. Cartilaginous joints C. Hinge joints D. Ball and socket joints List II I. Adjacent vertebrae, limited movement II. Humerus and Pectoral girdle, rotational movement III. Skull, don't allow any movement IV. Knee, help in locomotion

A.A-III, B-I, C-IV, D-II
B.A-I, B-III, C-II, D-IV
C.A-II, B-IV, C-I, D-III
D.A-IV, B-II, C-III, D-I
EasySolve

Three types of muscles are given as a, b and c. Identify the correct matching pair along with their location in human body:

A.(a) Skeletal - Triceps
B.(a) Skeletal - Biceps
C.(a) Involuntary - Nose tip
D.(a) Smooth - Toes
EasySolve

Given below are two statements: Assertion (A): Osteoporosis is characterised by decreased bone mass and increased chances of fractures. Reason (R): Common cause of osteoporosis is increased levels of estrogen. In the light of the above statements, choose the most appropriate answer from the options given below:

A.(A) is not correct but (R) is correct.
B.Both (A) and (R) are correct and (R) is the correct explanation of (A).
C.Both (A) and (R) are correct but (R) is not the correct explanation of (A).
D.(A) is correct but (R) is not correct.
MediumSolve

Which one of the following pairs of chemical substances is correctly categorised?

A.Pepsin and prolactin - Two digestive enzymes secreted in the stomach
B.Troponin and myosin - Complex proteins in striated muscles
C.Secretin and rhodopsin - Polypeptide hormones
D.Calcitonin and thymosin - Thyroid hormones
MediumSolve

Select the correct statement regarding the mechanism of muscle contraction.

A.It is initiated by a signal sent by CNS via sensory neuron.
B.Neurotransmitter generates action potential in the sarcolemma.
C.Increased Ca++ level leads to the binding of calcium with troponin actin filaments.
D.Masking of active site for actin is activated.
MediumSolve

Calcium is important in skeletal muscle contraction because it:

A.binds to troponin to remove the masking of active sites on actin for myosin.
B.activates the myosin ATPase by binding to it.
C.detaches the myosin head from the actin filament.
D.prevents the formation of bonds between the myosin cross bridges and the actin filament.
EasySolve

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