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Enzymes are protein molecules catalysing biochemical reactions. Their activity can be regulated.
Viruses consist of protein and DNA or RNA, they reprogram infected cells to produce more viruses.
An acyl-carrier coenzyme taking part in both anabolic and catabolic processes.
ATP is the main source of energy for cells.
Bacteria occur in a wide range of shapes, including spheres, rods and spirals.
Our gametes are haploid cells produced from diploid cells by meiosis, a special type of cell...
This animation explains active and passive transport processes occurring through cell membranes
Chlorophyll is a photosensitive green pigment found in plants; it absorbs light energy, thus...