Answer the following 20 questions. Good luck!
321. The repeated protein pattern of myofibrils present between two Z-lines is called:
322. When more energy is required in muscle contraction, then that energy can be produced by -- as a secondary source.
323. A sarcomere is the region of a myofibril b/w two successive:
324. The sarcolemma of muscle fibre folds inwards and form a system of tubes which runs through the sarcoplasm called:
325. According to the sliding filament theory, when muscle fibers are stimulated by nervous system, which of the following changes occurs?
326. If lactic acid build up in thigh muscles, it causes muscle tiredness and pain. This condition is called :
327. The thick filaments in a myofibril of muscles are made of-------.
328. Thin filaments of muscles contains ---- chains of actin molecules.
329. Each muscle fibre is surrounded by membrane which is called:
330. The function of calcium ions in muscle contraction is to:
331. Which of the following is a muscle component that act as store for energy?
332. Which of the following is NOT found in skeletal muscle fibers in human?
333. During sliding of actin filaments, ATP is used for ?
334. The cell membrane of muscle cell is :
335. Irregular striations and involuntary control is related to ?
336. Which feature is possessed by smooth muscles?
337. The accumulation of 'lactic acid' in the muscles results in :
338. Thick filaments in skeletal muscles are composed of :
339. Sarcomeres is part of myofibril between :
340. Over activity of sympathetic nervous system causes:
Stay updated with latest news & updates
