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Every enzyme has a unique shape. They have a region called the 'active site' where a substrate can bind. This site of the enzyme is a particular shape and only substrates that fit this site exactly can bind....

Bacteria can mutate and this mutation can make them resistant to an antibiotic. Treating this infection then means that only the non-resistant strains of bacteria will be killed. The resistant bacteria will ...

Light - Increasing light intensity, increases the rate of photosynthesis up to a certain point. At this point, either temperature or CO 2 level is the limiting factor. CO 2 - Increasing CO 2 level, increases...

The natural environment is a symbiosis of thousands of species. For a given area, the variety of species is called its biodiversity. An environment with a high biodiversity is often describes as healthy. Thi...

Mitosis and meiosis are ways in which a cell divides mitosis begins with diploid body cells whereas meiosis begins with diploid cells in a sex organ in mitosis, the cells divide to replace cells so clone a b...