Glossary

complementary DNA DNA that is synthesized from mRNA and therefore contains the coding sequence of the gene with no introns.

equilibrium potential The membrane potential at which there would be no net movement of ions across the membrane.

ligand A molecule that binds a protein.

neurotransmitter A chemical substance that is stored in vesicles at the nerve terminal and released to cause a change in the postsynaptic membrane, usually a change in the membrane to ions.

protease An enzyme that cleaves proteins.

resting potential The membrane potential of the cell in its quiescent state.

second messenger A molecule that is generated by the activation of surface receptors in response to hormones or neurotransmitters that lead to changes in the functional state of the cell.

In one sense, a cell is similar to a battery. Approximately one-third of the cell's metabolic energy is stored as an electrical potential in the form of ionic gradients across the plasma membrane. This energy is released at precise moments by "holes" in the membrane that allow ions to move down their electrochemical gradients across the membrane. These holes are ion channels. In the brain, a diverse array of ion channels coordinates their actions to generate complex waveforms that are used to transmit signals across long distances or between cells.

Understanding And Treating Autism

Understanding And Treating Autism

Whenever a doctor informs the parents that their child is suffering with Autism, the first & foremost question that is thrown over him is - How did it happen? How did my child get this disease? Well, there is no definite answer to what are the exact causes of Autism.

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