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An oxygen-haemoglobin dissociation curve shows how saturated haemoglobin gets with oxygen at different partial pressures. The beginning of the curve starts off shallow, this is due to the tight quarternar...
Both prokaryotic and eukaryotic cells have a nucleus which is responsible for controlling cellular activity.Both cell types also have ribosomes which produce proteins and both are bound by a cell membrane...
Diffusion is the passive movement of molecules from an area of high concentration to an area of low concentration,whereas osmosis is the passive movement of solut...
Humoral: An invading pathogen in the blood or lymph has foreign antigens on its surface. This activates B cells which then produce antibodies against the antigen.Cell mediated: One of the body’s own cells...
Blood glucose increases and gets too high, this is detected by beta cells in the Islet of Langerhans. Increase in insulin secretion, this speeds up the rate of glucose uptake by tissue cells. Glucose gets...
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