Cell Biology Muscle Contractility Online Exam Quiz
Cell Biology Muscle Contractility GK Quiz. Question and Answers related to Cell Biology Muscle Contractility. MCQ (Multiple Choice Questions with answers about Cell Biology Muscle Contractility
Troponin is composed of _____ subunits.
Options
A : 1
B : 2
C : 3
D : 4
The “Sliding filament model of muscle contraction” was proposed in the year ____________
Options
A : 1954
B : 1964
C : 1974
D : 1984
Each tropomyosin is associated with _______ subunits of actin subunits.
Options
A : 2
B : 3
C : 7
D : 9
________ of the sacromere remains unaffected during the muscle contraction.
Options
A : H zone
B : A band
C : I band
D : H band
Muscle cells are ___________
Options
A : irregularly shaped
B : cylindrically shaped
C : extremely fragile
D : extremely labile
Which of the following proteins are not found in muscle fibres?
Options
A : keratin
B : actin
C : troponin
D : tropomyosin
Muscle cells are formed from the fusion of ___________
Options
A : myoblasts
B : fibroblasts
C : mast cells
D : neurons
The striated appearance of muscle fibers is due to _______________
Options
A : nucleus
B : sacromeres
C : sarcoma
D : myoblasts
All skeletal muscles operate by _______________
Options
A : shortening
B : exciting
C : firing
D : contracting
Which of the following prevents sacromeres from pulling apart during muscle stretching?
Options
A : titin
B : vimentin
C : myosin
D : actin
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