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Muscle contraction begins after an action potential reaches the required muscle and causes the calcium ion protein channels on the sarcoplasmic reticulum to open. This allows the calcium ions to diffuse d...

Differentiation is something you can do to a function, to tell you about the gradient of the function. For your simple linear, quadratic, cubic, etc. equations, the process is the same every single time. ...

If a business has low levels of confidence in the economy there will be lower levels of investment and so lower economic growth. This will likely result in economic recession where the economy contracts f...

eV means electron volt - that is, it the amount of energy required for an electron to travel down (or up) a potential gradient with a potential difference of 1V. This energy, known as the work done, W, is...

1. (Many mitochondria) release energy / ATP for movement of vesicles / synthesis of protein / active transport; 2. (Many Golgi) vesicles transport protein / glycoprotein / milk to cell membrane / out o...