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Let's say you have a bowl of water and you separate it into two compartments with a partially permeable membrane. This membrane does not allow proteins to pass through but it allows water to diffuse freel...

Transcription and translation are both processes that are involved in converting nuclear DNA into proteins in eukaryotes, but they have two diifferent jobs. 1) Transcription The DN...

In order to survive. By the time the blood reaches the placenta there is a lower concentration of oxygen in the blood, the fetal haemoglobin has a higher affinity for oxygen so that the hb can bind to oxy...

Rhodopsin is the pigment found in rod cells, which consists of cis-retinal and the protein opsin. When the rod cells are kept in darkness, the opsin is uncoupled from the cell surface membrane of the rod ...

The sinoatrial node is a region found on the right atrium which acts as a pacemaker. Cells at the SAN can depolarise (become more positively charged with respect to the outside) and generate electrical ac...