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Imagine DNA to be two strings that are twisted together. In order to separate them, particular enzymes should be used. Firstly, helicase unwinds and unzips the helix at place called replication fork. More...

The heart is made up of four chambers; the left atria, left ventricle, right atria and the right ventricle. The cardiac cycle is made up of repeating phases of systole (contraction) and diastole (relaxati...

Mitosis is the process of cell division - in which one cell divides to form two cells that are identical to it and then also to each other. These new cells that are formed are called sister cells. The pro...

The main difference between the following two is that bacterial cells do not possess a nucleus or any membrane-bound organelles. In addition to that, bacterial cell walls are made out of murein, plasmids ...

In order to remember the definition of homeostasis it is useful to memorise the mnemonic ‘MACIE’; the Maintenance of A Constant Internal Environment. Conditions in the body must be constantly controlled b...