Enzymes are protein molecules catalysing biochemical reactions. Their activity can be regulated.
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The structure and arrangement of polypeptide chains affects the spatial structure of proteins.
The longest part of the digestive system, where most of the digestion and absorption takes place.
Polypeptide chains are composed of amino acids and can appear in alpha-helix or beta-sheet form.
ATP is the main source of energy for cells.
An acyl-carrier coenzyme taking part in both anabolic and catabolic processes.
The pancreas and the liver empty digestive juices into the duodenum.
Oxygen carrier protein in our red blood cells.
NAD⁺ is a coenzyme that plays an important role mainly in catabolic processes, while NADP is important in anabolic processes as hydrogen carriers.
Plants are capable of converting inorganic substances (carbon dioxide and water) into organic sugar.
This animation explains active and passive transport processes occurring through cell membranes