molecules of the muscle cells?
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both are regulatory proteins involved in movement of muscles. Tropomyosin reversibly converts crossbridge binding sites on actin (the contracting protein, thin filament). Troponin is bound to actin and tropomyosin and is the site of calcium binding that initiates contraction.
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3. mitochondrion\n\nThis is the organell where energy is produced for the cell through the oxygenation of ATP
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For energy?  Coenzyme Q10 and Carnitine.  Both of these are directly responsible for muscle activity (including your heart muscle).  A side note about carnitine, it helps erectile function (source: Journal of Urology).
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The cell parts you are looking for are:\n\n1.  golgi body\n2.  lysosome
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1 ribosomes\n2 stimuli\n3 enzyme\n4 cytoplasm
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Bone cells are roundish while muscle cells are long fibers.
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1) nucleus\n2) vacoule\n3) cell membrane\n4) cytoplasm\n5) chromosomes
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Inscrease your muscle mass.  Muscle cells use more energy than fat cells, so you'll burn more calories every day.
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More detail is needed!\nWhich cell(s). Red blood cells, neurones, muscle cells, squamous epithelia in alveoli. ? ?\n\nYour answer will depend on the cell.
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polysaccharides?\nhttp://www.cellsalive.com/cells/cellwall.htm\n\ncellulose?\nhttp://www.usoe.k12.ut.us/curr/science/sciber00/7th/cells/sciber/cellwall.htm
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I should know this because I teach an MCAT biology course, but it's just escaping me right now.  I think smooth muscle uses a different protein complex to acheive contraction.  It is very similar to myosin, but definately distinct.
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Being a biology teacher for seven years and currently in medical school, I have to say that the question is poorly worded.  Actin and myosin are not "arranged end to end".  Actin and myosin interdigitate.  They overlap.  The amount of overlapping determines the amount of force that a muscle can make.  While I believe "A" is the best answer, here are my following opinions of each answer.\n\nUnits of actin and myosin are arranged end to end in order to? \nA. form a muscle cell\nWell it is true that one muscle cell is a continuum of actin and myosin overlapping each other.  Sure it is way more complicated than this but this is essentially correct.\nB. produce actin-myosin bonds\nActin-myosin never actually "bond" as in a covalent bond.  And they do not do this "end to end".  This occurs when a myosin head group attaches to a "active site" on an actin filament.\nC. activate actin molecules\nMyosin does not "activate" actin molecules.  Actin becomes "activated" when calcium ions bind to troponin molecules and cause a molecule called tropomyosin to move out of the way exposing the active site on the actin filament.  Now myosin can bind\nD. separate actin from myosin\nA brand new molecule of ATP is what actually separates myosin from actin.  Without ATP, actin and myosin remain bound.\n\nTherefore, A makes the best sense, though "end to end" is not the best description of their relationship.
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Doesn't get much simpler than this website, have fun!\n\nhttp://www.biology4kids.com/files/cell_main.html
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Myosin is a motor molecule that converts ATP to mechanical energy that generates force and movement. They are involved in muscle contraction, cell crawling, cytokinesis, and organelle movement. It overall moves things toward the positive end and hydrolysis of ATP occurs in the head. The tail binds via protein-protein interaction on the membrane vesicle.
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nucleus, cytoplasm and protoplasm ....
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You'll have to be more specific as to which chemicals you want to know about.  The building blocks of Genes are Organic Structures / chemicals as are the individual nucleic acids and nitrogenous bases.     \n\nPlease see my sources for more information.
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are you talking about lactic acid in the muscles?