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explain the contraction of the skeletal muscle, according to the muscle sliding filament theory.

ATP binds to the myosin head Hydrolysis of ATP causes the head to come to a “cocked” position. Then the head binds to the actin binding site creating a cross-bridge ADP and Pi are released from the myosin, c...
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Answered by Ioanna Z. • Biology tutor
2086 Views

How does a reflex arc work?

A reflex arc is a system of sensory, motor and relay neurones that work together to provide a quick reaction to stimulus that protects us from danger. A really good example that often comes up in textbooks a...
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Answered by Abraham W. • Biology tutor
3444 Views

What physical processes result in the formation of a meander?

A meander is a bend in a flowing body of water. The physical processes which form menders are erosion and deposition. Erosion occurs mainly on the outside bend as the water is faster, deeper and has a greate...
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Answered by Davina D. • Geography tutor
7477 Views

What are the similarities and differences between an elastic and an inelastic collision?

In both an elastic and inelastic collision momentum is conserved, however in an elastic collision the total kinetic energy is the same before and after the collision. In an inelastic collision kinetic energy...
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Answered by Henry G. • Physics tutor
27295 Views

You just had a fight with your best friend about a boy and you write your feelings in your diary

Querido Diario ¡Ayer estoy muy enfadada con mi mejor amiga María! Ella me mintió, y yo pienso que ser honesto es muy importante. Me dijo que ayer necesitaba estar en casa con su familia asi que no podía qued...
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Answered by Marion L. • Spanish tutor
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