Discuss the importance of calcium ions and the detailed mechanisms they are involved in from when the action potential reaches the end of the neuron at the neuromuscular junction to the completion of the contraction of a muscle. Discuss in full detail how all the proteins in the structure of the muscle fibre function in contraction and why calcium ions are so important in the control. (15marks)

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.

youre right there are

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.