LOCOMOTION AND MOVEMENT NEET MCQ

 

Q21.The neurotransmitter usually released between a motor neuron and muscle cell is

(1) Serotonin 

(2) Dopamine 

(3) GABA 

(4) Acetylcholine 

Ans.4

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Q22.Complete the analogy w.r.t. each human limb Carpals: 8:: Tarsals: 

(1) 16 

(2) 8 

(3) 14  

(4) 7 

Ans.4

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Q23.Read the following statements and choose the correct option  

(1) There are 12 pairs of thoracic vertebrae in man 

(2) White muscle fibres contain a higher amount of oxygen storing protein than red muscle fibres. 

(3) A muscle twitch is a single action potential causing brief contraction and then relaxation 

(4) Sternum is present on the dorsal side of the body in humans 

Ans.3

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Q24.A single, U-shaped bone present at the base of the buccal cavity is 

(1) Hyoid 

(2) Sphenoid 

(3) Mandible 

(4) Occipital 

Ans.1

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Q25.How many of the following cannot be considered as function(s) of the skeletal system?

(1) Support for locomotion

(2) Protection from enemies

(3) Source of minerals

(4) Production of blood cells

Choose the correct option 

(1) Two 

(2) One 

(3) Four

(4) Zero

Ans.4

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Q26.Cytoplasmic streaming, a characteristic of Amoeba and white blood cells of vertebrates is caused by 

(1) Sliding microtubules

(2) Elongating cell walls 

(3) Contracting microfilaments 

(4) Relaxing microtubules 

Ans. 3

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Q27.The regulatory protein of skeletal muscles whose filaments run close to the F-actin throughout its length is 

(1) Troponin T 

(2) Troponin C 

(3) Titin 

(4) Tropomyosin

Ans.4

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 Q28.An active ATPase activity and binding site for ATP and actin filaments are found on 

(1) Light meromyosin 

(2) Short tail of heavy meromyosin 

(3) Globular head of heavy meromyosin 

(4) Long tail of the meromyosin monomer

Ans.3

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 Q29.Progressive degeneration of skeletal muscle mostly due to genetic disorder is

(1) Muscular dystrophy 

(2) Tetany 

(3) Gout 

(4) Arthritis 

Ans.1

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Q30.Visceral muscles are also known as 

(1) Voluntary striated muscles 

(2) Voluntary non-striated muscles 

(3) Involuntary non-striated muscles. 

(4) Involuntary striated muscles

Ans.3