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Photosynthesis is an endothermic reaction- energy is added (endo-in, exo-exit)H2O + CO2 ==> C6H12O6 + O2Photosynthesis is a proce...
The heart plays important roles in supplying oxygen and removing toxic waste to/from our body. In basic concepts, the heart is made up of 4 chambers, two on the top and two at the bottom, the top are know...
The human heart is described as a double pump because blood passes through it and gets pumped out of it twice in a single circuit of the circulatory system. A normal heart is separated into two halves, ri...
A synapse is a junction between a neurone and the next cell. When an action potential arrives at the presynaptic membrane, voltage-gated calcium ion channels open. Calcium ions (Ca2+) diffuse into the syn...
It controls what enters and leaves the cell.
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