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Dialysis is used to treat patients with kidney failure - it can also be referred to as renal replacement therapy (RRT). This means that the treatment acts to replace the function of normal kidneys - to fi...
Respiration is the process by which organisms make the energy they need to function. We will discuss respiration in humans. Both humans and some species of plant are known as facultative aerobes - meaning...
Muscle contraction essentially depends on the interaction between actin light chains and myosin heavy chains in muscle fibres. We will first consider light chains; these are made up of actin filaments, ar...
The alveolus is the terminal component of the lung. The efficiency of gas exchange across its wall and into the blood is dependent on several factors including; adequate ventilation, adequate blood supply...
Cell membrane - allows movement of molecules in and out of cellNucleus - contains DNA/genetic informationCytoplasm - water based 'filling' of the cellMitochondria - creates energy for the cell via respira...
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