This means it functions inside the cell with a definite purpose just like an organ, such as a kidney, functions in a body. But melanocytes are regularly making brand new melanosomes. A melanosome is initially constructed of a fiber-like network foundation laid down by special protein (Pmel17) unique to melanocytes.
1 Joule = 0.239005736 Calories. Joule is metric system unit (electrical, mechanical or thermal) and defined as the amount of work done by a force of one newton to move an object one meter or a current of one ampere when passing through one ohm resistance for one second.
ï¬ 1 calorie is the amount of heat needed to raise the temperature of 1 gram of water 1 Â°C. ï¬ 1 joule is the amount of work done when 1 Newton of force acts through a distance of 1 meter.ï¬ 1 Newton is the force needed to make a 1 kg mass accelerate to 1 m/s 2 ï¬ 1 calorie = 4.19 joules. In an untrained individual heart rate is about 72 beats per minute & stroke volume is 70 ml. ï¬ Maximal HR are related to age and appear to be unrelated to the level of fitness. ï¬ Stroke volume also typically increases with exercise, and maximal cardiac output in highly trained individuals may attain 40 L/m.