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Both transcription and translation are involved in protein synthesis, transferring the information stored as DNA to amino acids. Transcription is the first process of the two, it is the formation of mRNA fro...

Water Water is obtained from the soil into the roots of the plant. This occurs via osmosis , which is the movement of high water potential to low water potential [alternatively, from an area of low to high c...

Diffusion is a passive process that involves the movement of ions from an area of high concentration to an area of low concentration through a semi permeable membrane until an equilibrium has been reached.

Transcription is the first step of protein synthesis and occurs within the nucleus of the cell. Within the cell's nucleus is the DNA. Firstly an enzyme called DNA Helicase 'unzips' the two DNA strands separa...

DIAGRAM At rest, there is a potential difference across the cell surface membrane of -60mV maintained by sodium-potassium ion pumps which pump 3 Na+ ions out of the cell for every 2 K+ ions pumped in. When a...