65. Describe the molecular machinery involved in anterograde vesicle movement 66

Question

65. Describe the molecular machinery involved in anterograde vesicle movement 66. Describe the molecular machinery involved in retrograde vesicle movement 67. Give examples of cellular movement 68. Explain organization of muscle fibers in the muscle 69. Explain organization of a sarcomere and movement of the filaments as the muscle contracts 70. Explain the structure of thin and thick filaments 71. Explain the function of the troponin complex 72. Explain the cycle of the myosin head when it moves along the thin filament 73. How is synchronized contraction of the myofibrils in the cell achieved? 74. Explain the molecular machinery involved in movement of non-muscular cells along the substrate 75. Explain the structure of growth cones and the role of calcium in responding to attractive and repulsive cues

Explanation / Answer

65. Kinesin are the motor molecules involved in forward movement of vesicles.

66. Dynein is involved in backward movement of vesicles.

67. Cellular movement is complex process of moving cell by actin molecules. e.g. Wound healing.

68. Each muscle fibre is covered by endomysium and below which sarcolemma. Each fibre hav component myofibril and surrounding which is tubules and channels called sarcoplasmic reticulum.

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