masalah 1pilihanWhat is the Sliding Filament Theory about?CookingMuscle movementWeather patternsPlant growth
masalah 2pilihanWhich two proteins are mainly involved in the Sliding Filament Theory?Actin and MyosinKeratin and CollagenHemoglobin and InsulinGluten and Lactose
masalah 3pilihanIn the Sliding Filament Theory, what happens to the muscle when it contracts?It gets longerIt stays the sameIt gets shorterIt disappears
masalah 5pilihanWhat happens to the actin and myosin filaments during muscle contraction?They break apartThey disappearThey slide past each otherThey stay still
masalah 6pilihanWhat is the role of myosin in muscle contraction?To relax musclesTo make muscles growTo pull on actinTo produce energy
masalah 7pilihanWhen muscles relax, what happens to the actin and myosin filaments?They disappearThey slide apartThey hardenThey become shorter
masalah 8pilihanWhy is energy important in the Sliding Filament Theory?It keeps us awakeIt powers muscle contractionIt makes muscles growIt is not needed
masalah 9pilihanWhat would happen if actin and myosin could not slide past each other?Muscles would be too strongMuscles could not contractMuscles would grow fasterMuscles would disappear
masalah 10pilihanIn the Sliding Filament Theory, what happens to the sarcomere during muscle contraction?It lengthensIt shortensIt stays the sameIt twists
masalah 11pilihanWhich ion is crucial for initiating the muscle contraction process?SodiumCalciumPotassiumChloride
masalah 12pilihanWhat is the role of myosin in muscle contraction?It binds to calciumIt forms cross-bridges with actinIt inhibits actinIt provides structural support
masalah 13pilihanWhat is the name of the structure formed by actin and myosin filaments overlapping?Cross-bridgeZ-lineA-bandI-band
masalah 14pilihanWhich of these bands remains unchanged during muscle contraction?H-zoneA-bandI-bandZ-line
masalah 15pilihanWhat is the function of tropomyosin in the muscle contraction process?Activates myosinBlocks myosin binding sites on actinReleases calciumConverts ATP to ADP
masalah 16pilihanWhat happens to the H-zone as the muscle fully contracts?It becomes largerIt becomes smallerIt stays the sameIt disappears