Muscle contraction
Muscle contraction is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2019, 2020). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
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अनित्य तंतु आणी स्नायु संकुचन सिद्धांता बाबत खालील विधाने लक्षात घ्या : वरीलपैकी कोणते विधान/विधानी सत्य आहेत? Consider the following statements about sliding filament theory of muscle contraction : Which of the above statements is/are true?
(a)हा सिद्धांत आधुनिक स्नायु संकुचन संकल्पना स्पष्ट करतो. / This theory explains the modern concept of muscle contraction.
(b)हा सिद्धांत हक्सले आणि निडरजेरके या शास्त्रज्ञांनी मांडला. / This theory was put forward by Huxley and Niedergerke.
The sliding filament theory explains modern muscle contraction mechanisms and was proposed by scientists Huxley and Niedergerke (along with Hanson and Huxley), making both statements true.
खालीलपैकी कोणती विधान/विधाने “सारकोमेअर" बद्दल सत्य आहे/आहेत? / Which of the following statement/s is/are true for sarcomere?
(a)सारकोमेअर हे कोणत्याही तंतुचे खंड आहेत. / A sarcomere is any segment of the fibre.
(b)ते उत्कतीय संरचना आणि क्रियात्मक कार्याचे भाग आहेत. / It is a unit of histological structure and physiological action.
A sarcomere is defined as the basic functional and structural unit of striated muscle tissue (muscle fibre), fulfilling both statements.