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The function of the synapse is to transfer electric activity from one cell to another. At chemical synapses, the presynaptic neuron is separated from the postsynaptic neuron by a synaptic cleft. Transmiss...
The plasma membrane is organised into what is referred to as a lipid bilayer, consisting primarily of phospholipids and proteins. Phospholipids contain a hydrophobic (water hating) fatty acid 'tail' and a...
Non-coding RNA.The sequence of Messenger RNA codes for a protein so is not functional RNA. However some RNA has catalytic function, such as ribosomal RNA, doesn't code for proteins so is functional RNA. T...
The primary structure of a protein is its amino acid sequence which is determined by the base sequence of the gene which codes for the protein. Secondary structures include alpha-helicies and beta-pleated...
Bacterial resistance to antibiotics is an example of natural selection. In a population of bacteria there may be some individuals that are not affected by the antibiotic. This may be due to random changes...
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