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Random mutations with a certain species genetic pool will lead to variation within the species. These variations can lead to certain organisms adapting to their environment better. The fittest will surviv...
Genetic information is stored within DNA in short sections called genes which contain the instructions needed to make a protein. DNA is a very large molecule and cannot exit the nucleus of the cell. Trans...
Na+/K+ ATP Transporters are found within the plasma membrane of a neurone. At rest, the transporters use ATP to pump 2 K+ ions into the cell for every 3 Na+ ions that are pumped out of the cell. This mean...
The primary structure of a protein is the sequence of amino acids found in the polypeptide chains, this sequence determines the shape and properties of the protein.The secondary structure of a protein is ...
(i) 1. amino acid 2. DNA(ii) Decomposer microrganisms break down dead material into ammonia. Ammonia is then converted into nitrite and then oxidised to nitrate by nitrifying bacteria. The process is know...
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